Alkaline Deoxidation of Cyclopropylcarbinol, Cyclobutanol

Total Page:16

File Type:pdf, Size:1020Kb

Load more

This dissertation has been microfilmed exactly as received 6 7-10,880 COOK, Francis Bernard, 1936- ALKALINE DEOXIDATION OF CYCLOPROPYLCARBINOL, CYCLOBUTANOL, AND ALLYLCARBINOL AND THE MECHANISMS OF BASE-CATALYZED DECOMPOSITION OF TOSYLHYDRAZONES IN PROTONIC SOLVENTS. The Ohio State University, Ph.D., 1967 Chemistry, organic University Microfilms, Inc., Ann Arbor, Michigan ALKALINE DEOXIDATION OF CYCLOPROPYLCARBINOL, CYCLOBOTANOL, AND ALLYLCARBINOL AND THE MECHANISMS OF BASE-CATALYZED DECOMPOSITION OF TOSYLHYDRAZONES IN PROTONIC SOLVENTS DISSERTATION Presented in Partial Fulfillment of the Requirements for the Degree Doctor of Philosophy in the Graduate School of The Ohio State University By Francis Bernard Cook, B.S., M.S. The Ohio State University 1967 Approved by Adviser Department of Chemistry DEDICATION To ray w ife, Marilyn 11 ACKNOWLEDGMEOTS I wish to express my appreciation to Professor Harold Shechter, who suggested these problems, for his support, guidance, and especially for the assistan ce, c r itic a l judgment, and time he has given in the preparation of this dissertation. I am grateful to the Department of Chemistry of The Ohio State University and the Ethyl Corporation for financial assistance afforded me during these investigations. The author wishes to thank Dr. I(. Greenlee for providing many of the chemical standards used in this research. H i VITA May 20, 1936 ................................ Born - Akron, Ohio 1958 ................................................... B.S., John Carroll University, Cleveland, Ohio 1960 ................................................... M.S., John Carroll University, Cleveland, Ohio 1960-1961 ..................................... Teaching Assistant, Department of Chemistry, The Ohio State University, Columbus, Ohio 1961-1963 . ................................. Research Fellow, Department of Chemistry, The Ohio State University, Columbus, Ohio 1963-1964 ..................................... Ethyl Corporation Fellow, Department of Chemistry, The Ohio State University, Columbus, Ohio 1964-1967 ..................................... Research Assistant, Department of Chemistry, The Ohio State University, Columbus, Ohio IV CONTENTS Page ACKNOWLEDGMENTS..................................................................................................... i ü VITA ........................................................................................... iv TABLES........................................................................................................................ ix FIGURES.............................................................................................................................x i i i CHAPTER 1. INTRODXTION ...................................................................... 1 CHAPTER 2. HISTORICAL .......................................................................... 2 Alkaline Deoxidation ............................................... 2 CHAPTER 3. RESULTS AND DISCUSSION ............................................... 5 Cyclopropylcarbinol ............................................... 5 Cyclobutanol ................................................................. 11 Allylcarbinol ............................................. 17 CHAPTER 4. EXPERIMENTAL........................................................................... 24 General Procedure ...................................... .... 24 R e a g e n t s .......................................................................... 25 CHAPTER 5. INTRODIKTION........................................................................... 27 CHAPTER 6. HISTORICAL .................................. 30 Tosylhydrazones . ................................................... 30 CHAPTER 7. RESULTS AND DISCUSSION.................................................... 41 Cyclopropanecarboxaldehyde and Cyclopropanecarboxaldehyde-dj Tosylhydrazones .......................................... 41 CHAPTER 8. RESISTS AND DISCUSSION .................................................... 71 Trimethylacetaldehyde Tosylhydrazone . 71 CHAPTER 9 . RESIB.TS AND DISCUSSION..................................................... 84 Diisopropyl Ketone Tosylhydrazone ................... 84 Page CHAPTEB 10. BESŒ.TS AND DISCUSSION........................................... 94 Cyclopentanone Tosylhydrazone ................... 94 CHAPTER 11. BESILTS AND DISCUSSION........................................... 101 Cyclohexanone Tosylhydrazone ........................ 101 CHAPTER 12. BESILTS AND DISCUSSION................................. 106 Cyclobutanone Tosylhydrazone ........................ 106 CHAPTER 13. RESILTS AND DISCUSSION................................. 125 Acetone Tosylhydrazone ..................................... 125 CHAPTER 14. INTRODILTION......................................................... 131 Diazo Compounds ................................................... 131 CHAPTER 15. HISTORICAL............................................................. 132 Diazo Compounds ................................................... 132 CHAPTER 16. BESILTS AND DISCUSSION................................. 136 2-Dlazo-l-indanone ..................................... 136 2-Diazo-3-methyl-l-indanone ........................ 136 1-Diazo-l-phenylethane 137 CHAPTER 17. EXPERBIEWTAL........................................................ 140 General Procedure and Techniques . 140 Melting points .......................................... 140 Boiling points .......................................... 140 Elemental analysis ................................. 140 Infrared spectra ..................................... 140 Ultraviolet spectra . ................... 141 Near-infrared spectra ............................ 141 Nuclear magnetic resonance s p e c t r a .................................................. 141 Gas chromatography ....................... 141 Preparative gas chromatography . , 143 Mass s p e c t r a .................................... 144 Mass spectra analysis ....... 145 Product identification ...... 149 Hydrocarbon yield and composition . 150 Intermediates ................................................... 153 jgt-Toluenesulfonyl hydrazide (tosyl hydrazide) ..................................... 153 Cyclopropanecarboxaldehyde . 153 Cyclopropanecarboxaldehyde-dj . 154 VI Page Tosylhydrazones ................................................... 155 Cyclopropanecarboxaldehyde tosylhydrazone .......................................... 155 Cyclopropanecarboxaldehyde-dj tosylhydrazone .............................................. 156 Cyclobutanone tosylhydrazone .... 156 Cyclopentanone tosylhydrazone .... 156 Cyclohexanone tosylhydrazone .... 157 2,2-Dimethylpropanal tosyl­ hydrazone (Trimethylacetaldehyde tosylhydrazone) ..... ....................... 157 2,4-Dimethyl-3-pentanone tosylhydrazone (diisopropyl ketone tosylhydrazone) ............................ 158 Acetone tosylhydrazone ............................ 158 Acetophenone tosylhydrazone ................... 159 Ethylene glycol-dg .............................................. 159 Methanol-d]^ ............................................................ 161 2-Diazo-l-indanone . ..................................... 162 2-Diazo-3-methyl-l-indanone ....................... 162 1-Diazo-l-phenylethane ................... 163 Lithium salts of tosylhydrazones .... 163 Sodium salts of tosylhydrazones .... 164 Decompositions and Isomerization .... 165 Thermal decomposition of the lithium salt of tosylhydrazones . 165 Thermal decomposition of the sodium s a lt of tosylhydrazones . 166 Decomposition of cyclopropanecarbox­ aldehyde tosylhydrazone in ethylene g l y c o l - d g ......................................... 166 Thermal isomerization of bicycloD .1.0]butane to 1,3-butadiene . 168 Thermal isomerization of cyclobutene to 1,3-butadiene .............................................. 168 Hydrogen-Deuteriura Exchange in Salts of Tosylhydrazones, Diazo Com­ pounds and their A n a l y s i s ............................ 169 Hydrogen-deuterium exchange of lithium cyclopentanone tosyl­ hydrazone in ethylene glycol-d^ . 169 vu Page Hydrogen-deuterium exchange of lithium trimethylacetaldehyde tosylhydrazone in ethylene g l y c o l - d g ....................................................... 170 Hydrogen-deuterium exchange of lithium trimethylacetaldehyde tosylhydrazone in deuterium oxide tetrahydrofuran ............................ 172 Hydrogen-deuterium exchange of lithium cyclohexanone tosyl­ hydrazone in ethylene glycol-dg . 173 Hydrogen-deuterium exchange of lithium acetone tosylhydrazone in ethylene glycol-dn ............................ 174 Hydrogen-deuterium exchange of lithium acetone tosylhydrazone in deuterium oxide-tetrahydro- f u r a n .................................... 175 Hydrogen-deuterium exchange of lithium diisopropyl ketone tosylhydrazone in deuterium oxide-tetrahydrofuran ............................ 176 Hydrogen-deuterium exchange of 1-Diazo-l-phenylethane ............................ 177 Hydrogen-deuterium exchange of 2-Diazo-3-methyl-l-indanone .... 180 Hydrogen-deuterium exchange of 2-Diazo-l-indanone 180 Solvent abbreviations ............................ 181 R ea g en ts.............................................. 182 Gas chromatographic columns .... 182 APPEMDH I TABLES PDR MASS SPECTRA DEUTERIUM ANALYSIS . 183 II MASS SPECTRA ............................................................................... 214 III INFRARED SPECTRA..........................................................................
Recommended publications
  • Revised Group Additivity Values for Enthalpies of Formation (At 298 K) of Carbon– Hydrogen and Carbon–Hydrogen–Oxygen Compounds

    Revised Group Additivity Values for Enthalpies of Formation (At 298 K) of Carbon– Hydrogen and Carbon–Hydrogen–Oxygen Compounds

    Revised Group Additivity Values for Enthalpies of Formation (at 298 K) of Carbon– Hydrogen and Carbon–Hydrogen–Oxygen Compounds Cite as: Journal of Physical and Chemical Reference Data 25, 1411 (1996); https://doi.org/10.1063/1.555988 Submitted: 17 January 1996 . Published Online: 15 October 2009 N. Cohen ARTICLES YOU MAY BE INTERESTED IN Additivity Rules for the Estimation of Molecular Properties. Thermodynamic Properties The Journal of Chemical Physics 29, 546 (1958); https://doi.org/10.1063/1.1744539 Critical Evaluation of Thermochemical Properties of C1–C4 Species: Updated Group- Contributions to Estimate Thermochemical Properties Journal of Physical and Chemical Reference Data 44, 013101 (2015); https:// doi.org/10.1063/1.4902535 Estimation of the Thermodynamic Properties of Hydrocarbons at 298.15 K Journal of Physical and Chemical Reference Data 17, 1637 (1988); https:// doi.org/10.1063/1.555814 Journal of Physical and Chemical Reference Data 25, 1411 (1996); https://doi.org/10.1063/1.555988 25, 1411 © 1996 American Institute of Physics for the National Institute of Standards and Technology. Revised Group Additivity Values for Enthalpies of Formation (at 298 K) of Carbon-Hydrogen and Carbon-Hydrogen-Oxygen Compounds N. Cohen Thermochemical Kinetics Research, 6507 SE 31st Avenue, Portland, Oregon 97202-8627 Received January 17, 1996; revised manuscript received September 4, 1996 A program has been undertaken for the evaluation and revision of group additivity values (GAVs) necessary for predicting, by means of Benson's group additivity method, thermochemical properties of organic molecules. This review reports on the portion of that program dealing with GAVs for enthalpies of formation at 298.15 K (hereinafter abbreviated as 298 K) for carbon-hydrogen and carbon-hydrogen-oxygen compounds.
  • Synthesis and Reactivity of Small Ring Bicyclic Compounds Raymond Lee Welch Iowa State University

    Synthesis and Reactivity of Small Ring Bicyclic Compounds Raymond Lee Welch Iowa State University

    Iowa State University Capstones, Theses and Retrospective Theses and Dissertations Dissertations 1969 Synthesis and reactivity of small ring bicyclic compounds Raymond Lee Welch Iowa State University Follow this and additional works at: https://lib.dr.iastate.edu/rtd Part of the Organic Chemistry Commons Recommended Citation Welch, Raymond Lee, "Synthesis and reactivity of small ring bicyclic compounds " (1969). Retrospective Theses and Dissertations. 3807. https://lib.dr.iastate.edu/rtd/3807 This Dissertation is brought to you for free and open access by the Iowa State University Capstones, Theses and Dissertations at Iowa State University Digital Repository. It has been accepted for inclusion in Retrospective Theses and Dissertations by an authorized administrator of Iowa State University Digital Repository. For more information, please contact [email protected]. This dissertation has been microfilmed exactly as received 70-7767 WELCH, Raymond Lee, 1948- SYNTHESIS AND REACTIVITY OF SMALL RING BICYCLIC COMPOUNDS. Iowa State University, PhJD., 1969 Chemistry, organic University Microfilms, Inc., Ann Arbor, Michigan SYNTHESIS AND REACTIVITY OF SMALL RING BICYCLIC COMPOUNDS by Raymond Lee Welch A Dissertation Submitted to the Graduate Faculty in Partial Fulfillment of The Requirements for the Degree of DOCTOR OF PHILOSOPHY Major Subject: Organic Chemistry Approved : Signature was redacted for privacy. In Charge of Major Work Signature was redacted for privacy. Signature was redacted for privacy. Iowa State University Of Science and Technology
  • Rearrangements of Cyclopropyl and Related Carbenes

    Rearrangements of Cyclopropyl and Related Carbenes

    71-22,456 CHERNEY, Leon Irwin, 1942- REARRANGEMENTS OF CYCLOPROPYL AND RELATED CARBENES. The Ohio State University, Ph.D., 1971 Chemistry, organic University Microfilms, A XEROX Company, Ann Arbor, Michigan THIS DISSERTATION HAS BEEN MICROFILMED EXACTLY AS RECEIVED REARRANGEMENTS OF CYCLOPROPYL AND RELATED CARBENES DISSERTATION Presented in Partial Fulfillment of the Requirements for the Degree Doctor of Philosophy in the Graduate School of The Ohio State University By Leon li Cherney, A.B., M.S. * # # ii- The Ohio State University 1971 Approved by 1 AdA^sor Department of Chemistry PLEASE NOTE: Some pages have indistinct print. Filmed as received. UNIVERSITY MICROFILMS. ACiCNOWLEDGMENTS The author wishes to extend his appreciation to Dr. Harold Shechter for suggesting this problem and for assis­ tance in the preparation of this manuscript. Thanks are also extended to The National Science Foundation and The Ohio State University for their financial support. 11 VITA March 5, 19 U2 ...... Born - Rochester, New York I96 U .............. A.B., Brown University, Providence, Rhode Island 1964-1967 .......... Teaching Assistant, Department of Chemistry, The Ohio State University, Columbus, Ohio 1967 .............. M.S., The Ohio State University, Columbus, Ohio 1967-1971 ......... Research Associate, Department of Chemistry, The Ohio State University, Columbus, Ohio ill TABLE OF COIOTENTS Page ACKNOWLEDGMENTS ......................................... ii VITA .................................................... iii LIST OF TABLES ..........................................
  • United States Patent 19 11) Patent Number: 5,723,714 Binger 45) Date of Patent: Mar

    United States Patent 19 11) Patent Number: 5,723,714 Binger 45) Date of Patent: Mar

    US005723714A United States Patent 19 11) Patent Number: 5,723,714 Binger 45) Date of Patent: Mar. 3, 1998 (51) int. Cl. .......................... CO7C 1/32 54 PROCESS FOR THE PREPARATION OF METHYLENECYCLOPROPANE 52 U.S. Cl. .... ... 585/638; 585/639; 585/641 75) Inventor: Paul Binger. Mülheim an der Ruhr, 58) Field of Search ..................................... 585/638, 639, Germany 585/641 (73) Assignee: Studiengesellschaft Kohle mbH, Primary Examiner Elizabeth D. Wood Mulheim an der Ruhr, Germany Attorney, Agent, or Firm-Sprung Kramer Schaefer & (21) Appl. No.: 513,840 Briscoe (22) PCT Filed: Sep. 28, 1994 57 ABSTRACT (86 PCT No.: PCT/EP94/03231 A novel process for the production of methylenecyclopro pane from 3-halogen-2-methyl-1-propene (B-methallyl S371 Date: Sep. 5, 1995 halogenide) by reacting f-methyallyl halogenides with an S 102(e) Date: Sep. 5, 1995 alkali metal-bis-(trialkylsilyl)-amide, optionally in the pres ence of an alkali metal alcoholate and/or a corresponding 87 PCT Pub. No.: WO95/09826 alcohol. Methylenecyclopropane is obtained in a high yield, combined with a low or negligible amount of 1-methyl PCT Pub. Date: Apr. 13, 1995 cyclopropene. 30 Foreign Application Priority Data Oct. 1, 1993 DE Germany .......................... 43 33 491. 13 Claims, No Drawings 5,723,714 1. 2 PROCESS FOR THE PREPARATION OF The disadvantage of all these process variations is, that METHYLENECYCLOPROPANE one has to work in a heterogeneous system, since sodium amide and potassium amide are not soluble in the afore CROSS-REFERENCES TO RELATED mentioned solvents. This excludes a production of methyl APPLICATIONS enecyclopropane in an industrial scale, because working This application has been filed under 35 U.S.C.
  • The Synthesis Op Soiæe Mono-Alkyxcyclo

    The Synthesis Op Soiæe Mono-Alkyxcyclo

    THE SYNTHESIS OP SOIÆE MONO-ALKYXCYCLO- PROPANES AND METHYXENECYCLOPROPANE DISSERTATION Presented in Partial Fulfillment of the Requirements for the Degree Doctor of Philosophy in the Graduate School of the Ohio State University By JAlffiS THURMOND GRAGSOK, M.Sc. The Ohio State University • Tf* • ••• • * 1951 Approved by: Advisor ACKl'IOWLEDGMENT Sincere appreciation is expressed to Dr. C. E. Boord for his constant interest and guidance during the course of this work. Acknowledgment is also made to Dr. K. W. Greenlee for his continual interest and many helpful suggestions. Thanks are expressed to the American Petroleum Insti­ tute Research Project 45. Without its aid this work could nôt have been completed. 892489 i--ÎL TABLE OP CONTENTS PAGE I. Introduction................................... 1 II. General Discussion A. Historical ............................... 5 B. Present Research .......... 8 III. Experimental A. Special Apparatus ................. 20 B. Methylcyclopropane 1. l-Chloro-3-bromo-8-methylpropane .... 22 2. Ring Closure ........................ 22 3. A second synthesis ............. 23 C . EthylcycTopropane 1. Reaction scheme (1) a. l-Ethoxy-3-hydroxypentane ..... 26 b. l-Ethoxy-3-bromopentane ...... 27 c. Dealkoxydebromination......... 28 2. Reaction scheme (2) a. 3 -Hydr oxypent en e -1 ............ 29 b. 3-Bromopentene-l .......... 31 0 . 1,3-Dibromopentane ............ 32 d. Ring closure .................. 32 3. Reaction scheme (3) 33 D. n-Propylcyclopropane 1. Reaction scheme (1) ii PAGE a. l-Ethoxy-3 -liydPoxyiiexan0 ..... 35 b. l-Ethoxy-3-bromohexane ....... 35 c. Ring closure ........ 36 2. Reaction scheme (2) a. 3 -Hydr oxyhexene -1 ............. 38 b. 3-Bromohexene-l ........... 38 c. 1,3-Dlbromohexane ............. 38 d. Ring closure .................. 39 E. n-Butylcyclopropane 1. Reaction scheme (1) a.
  • Basis V3.5’ with Element Dependent Atomic Confinement Radii: Large(L) and Medium (M)

    Basis V3.5’ with Element Dependent Atomic Confinement Radii: Large(L) and Medium (M)

    TABLE I: numerical basis set specification for A) TNP, B) DNP revised, and C) DNP 'Basis v3.5' with element dependent atomic confinement radii: large(l) and medium (m). A) (p) s p d s p d f H 1.51 4.11 1.72 9.90 5.85 Li -0.58 -0.51 -2.19 3.96 -1.15 -1.51 5.41 4.15 Be -2.00 -0.69 -3.86 6.22 -2.60 3.57 2.83 4.80 B -0.65 -3.00 7.99 -2.34 -0.72 4.37 5.29 C -0.51 -0.50 5.57 -3.28 -3.25 8.25 3.95 N -2.94 -3.00 9.01 1.86 2.03 2.81 10.00 O -4.11 -3.97 3.05 2.62 1.49 10.00 9.98 F -4.54 -2.90 5.83 3.26 2.85 9.99 10.00 Na -0.54 -0.80 -0.77 5.97 -1.26 -3.05 7.09 9.99 Mg -0.65 -0.89 -0.98 3.94 -5.82 -2.21 7.89 6.66 Al -2.08 -3.38 5.54 4.45 6.76 8.63 7.37 Si -1.96 -3.32 5.47 -3.42 4.77 5.15 7.64 P -2.63 -3.88 6.20 -4.37 -1.02 9.99 8.95 S -2.36 -2.92 -4.39 2.74 2.63 2.51 9.12 Cl -4.00 -3.05 -2.25 5.27 4.05 5.27 9.99 B) (p) s p d C) s p d rc(l) [pm] rc(m) [pm] H 1.30 4.00 1.30 4.00 310 300 Li -0.50 -1.00 -1.50 4.00 -1.00 -1.00 4.00 510 440 Be -1.00 -1.00 -2.00 5.00 -1.00 -1.00 4.00 440 390 B -1.00 -2.00 6.00 -1.00 -1.00 4.00 410 340 C -2.00 -2.00 6.00 -2.00 -2.00 5.00 370 330 N -2.00 -2.00 7.00 -2.00 -2.00 7.00 340 320 O -2.00 -2.00 6.00 -2.00 -2.00 7.00 330 320 F -2.00 -2.00 6.00 -2.00 -2.00 7.00 320 320 Na -0.50 -1.00 -1.50 6.00 -1.00 -1.00 4.00 520 450 Mg -0.50 -1.00 -2.00 6.00 -1.00 -1.00 4.00 490 430 Al -2.00 -3.00 6.00 -2.00 -2.00 4.00 480 420 Si -2.00 -3.00 6.00 -2.00 -2.00 6.00 460 400 P -2.00 -3.00 6.00 -2.00 -2.00 6.00 420 370 S -2.00 -3.00 -4.50 -2.00 -2.00 -2.00 400 360 Cl -2.00 -3.00 -2.50 -2.00 -2.00 6.00 380 340 1 TABLE II: Appendix B: Database of experimental enthalpies of formation with experimental uncer- tainty for 577 molecular and 15 atomic species.
  • (Or Isobutene). It Will Be Shown in the Next Section That the Symmetry Force Constants

    (Or Isobutene). It Will Be Shown in the Next Section That the Symmetry Force Constants

    INFRARED AND RAMAN SPECTRA AND THE NORMAL VIBRATIONS OP METHXTjENECYCLO PRO PANE DISSERTATION Presented in Partial Fulfillment of the Requirements for the Degree Doctor of Philosophy in the Graduate School of The Ohio State University By EDMUND J • BLAU » B • Chexu*) S • M* The Ohio State University 1953 Approved by : TABLE OF CONTENTS Pago LIST OF FIGURES ill LIST OF TABLES iv ACKNOWLEDGEMENT viii I INTRODUCTION 1 II SYNTHESIS AND IDENTIFICATION OF METHYIT*;BCYCLOPrtOFANE 6 III EXPERIMENTAL WORK 12 1. Preparation and Purification of Mothylonocyclo- propane 12 (a) Chlorination of Kethallyl Chloride 12 (b) Ring Closure with Magnesium and Tetra- hydrofuran 15> 2. Infrared Spectra 19 3» Raman Spectra 29 (a) Spectrograph and Accessory A > )ai'atu3 29 (b) The Raman Tube 29 (c) Polarization Measurements 3 (d) Wave Length Measurements 33 (e) Results of Raman Measurements 3^ IV GENERAL DISCUSSION OF T'TE STRUCTURE AMD VIBRATIONS OF METHYLENECYC LOPRO PANE k 2 1. Theory of Strained Rings and the Configuration of I-ie thy le no cyclopropane l'r?. 2. Structural Parameters )}.Q 3. Moments of Inertia and Band Typo 3 plj. U* Symmetry Classification and Selection Rules for the Ilethylenecycloprooane Vibrations 5*7 3. Qualitative Discussion of the Forms of Vibrations 70 V NORMAL COORDINATE CALCULATION 77 1. Introduction 77 2. Definition of Coordinates Cl 3. Outline of Normal Coordinate Theory 05> ij.* The s-Vectore for the Valence Coordinates 92 b* Symmetry Coordinates and the S-Vectors 99 6 . Elimination of Redundancies 112 7* Wilson*s G-Matrix 121 - I - \ 01.004 TABLE OP CONTENTS (Continued) Page V NORMAL COORDINATE CALCULATION (Cont'd) 8 .
  • Rearrangement and Fragmentation Reactions of Cyclopropylmethylidenes

    Rearrangement and Fragmentation Reactions of Cyclopropylmethylidenes

    This dissertation has been 65—5677 microfilmed exactly as received SMITH, James Allbee, 1937- REARRANGEMENT AND FRAGMENTATION REACTIONS OF CYCLOPROPYLMETHYLIDENES. The Ohio State University, Ph.D., 1964 Chemistry, organic University Microfilms, Inc., Ann Arbor, Michigan REARRANGEMENT AND FRAGMENTATION REACTIONS OP CYCLOPROPYLMETHYLIDENES DISSERTATION Presented in Partial Fulfillment of the Requirements for the Degree Doctor of Philosophy In the Graduate School of The Ohio State University By James Allhee Smith, B.S. In Chemistry ****** The Ohio State University 1964 by Adviser Department of Chemistry ACKNOWLEDGMENTS I am Indebted to Professor Harold Shechter for suggesting this problem and for his guidance and instruo tion. I also wish to acknowledge the assistance of Dr. T. Page, Battelie Memorial Institute, in the inter­ pretation of some of the nuclear magnetic resonance spectra. I am grateful for the financial aid given by Union Carbide Corporation, Du Pont Company, and the National Science Foundation, ii VITA October 20, 1937 Born - Detroit, Michigan 1955 Graduated from Pontiac High School, Pontiac, Michigan 1959 B.S. in Chemistry, University of Michigan, Ann Arbor, Michigan 1959-1960 Teaching assistant. Department of Chemistry, The Ohio State University, Columbus, Ohio 1961-1963 National Science Foundation Cooperative Fellow, Department of Chemistry, The Ohio State University, Columbus, Ohio 1963-1964 Union Carbide Corporation Fellow, Department of Chemistry, The Ohio State University, Columbus, Ohio iii CONTENTS Page I. INTRODUCTION AND HISTORICAL................. 1 II. SUMMARY ............................... II III. DISCUSSION.................................. 13 IV. EXPERIMENTAL ............................... 59 GENERAL PROCEDURES AND TECHNIQUES........ 59 Melting points....................... 59 Boiling points.............. 59 Elemental analysis................... 59 Infrared spectra..................... 59 Ultraviolet spectra.................. 50 Near-Infrared spectra................ 60 Nuclear magnetic resonance spectra..
  • Organic Problems

    Organic Problems

    organic problems https://www2.chemistry.msu.edu/faculty/reusch/virttxtjml/questions/pr... General and Miscelleneous 1. How many electrons occupy the bonding molecular orbitals of a CN triple bond? A) 2 B) 4 C) 6 D) 8 2. Which of the following species is not amphoteric ? (+) (-) A) NH 3 B) HF C) NH 4 D) HCO 3 3 What is the relationship of the two structures shown below? A) they are identical. B) they are conformations of the same structure C) they are constitutional isomers. D) they are different compounds with different compositions 4 Which of the following molecules will not have a dipole moment? A) CH 3Cl B) CH 3OCH 3 C) CH 2Cl 2 D) CCl 4 5 Which of the following molecules has a dipole moment? A) CBr 4 B) CH 2=CH 2 C) BF 3 D) SO 2 6 Which of the following molecules has a linear shape? A) NH 3 B) H 2S C) CO 2 D) H 2CO 7 Which of the following intermediates is pyramidal in shape? A) H 3C(+) B) H 2C: C) H 3C:(-) D) HC ≡C:(-) 8 In which compound does carbon have the highest oxidation state? A) CH 4 B) HCN C) H 2CO D) CH 2Cl 2 9 Which of the following statements applies to a C 10 H14 O2 compound? A) it may have 2 double bonds and 2 rings B) it may have 3 double bonds and 0 rings C) it may have 1 triple bond and 3 rings D) it may have 0 double bonds and 3 rings 10 What functional group is present in the terpene camphor? A) hydroxy B) carboxy C) carbonyl D) oxy 11 What functional class is represented by the alkaloid coniine? 1 of 6 2/6/2016 6:47 PM organic problems https://www2.chemistry.msu.edu/faculty/reusch/virttxtjml/questions/pr..
  • Platinum Complexes of Bicyclopropylidene and Related Ligands

    Platinum Complexes of Bicyclopropylidene and Related Ligands

    Platinum Complexes of Bicyclopropylidene and Related Ligands by Sarah Amy Hoyte A thesis submitted to the Victoria University of Wellington in fulfilment of the requirements for the degree of Doctor of Philosophy in Chemistry Victoria University of Wellington 2014 Abstract The coordination chemistry of the cyclopropyl-substituted alkenes, bicyclopropylidene (BCP) and methylenecyclopropane (MCP), with platinum was explored. A range of complexes with η2-alkene ligands were synthesised by the displacement of a ligand, typically ethene, from a precursor complex. These complexes are [Pt(L)(P—P)] (L = BCP, MCP; P—P = Ph2P(CH2)3PPh2, Cy2P(CH2)2PCy2, t t t t Bu2P(CH2)2P Bu2, Bu2PCH2(o-C6H4)CH2P Bu2), [Pt(L)(P—S)] (L = BCP, MCP; t t P—S = Bu2PCH2(o-C6H4)CH2S Bu), [Pt(C2H4)(L)(PR3)] (L = BCP, MCP; PR3 = ′ PPh3, PCy3), [Pt(MCP)2(PR3)] (PR3 = PPh3, PCy3) and [PtCl2(L)(L )] (L = BCP, MCP; L′ = Py, DMSO). These were the first examples of platinum complexes with η2-BCP ligands, and the first bis-MCP Pt complexes. BCP underwent ring-opening reactions with both Pt(0) and Pt(II) complexes to form the 1,3-diene allylidenecyclopropane (ACP). The first transition metal complexes of ACP t t [Pt(ACP)(P—P)] (P—P = Ph2P(CH2)3PPh2, Cy2P(CH2)2PCy2, Bu2P(CH2)2P Bu2) were synthesised. Some of these complexes rearranged to form η2:σ2-metallacyclopentene complexes, the first instances of the formation of η2:σ2-metallacyclopentene complexes from η2:π-diene complexes. With MCP, the ring-opening reaction only occurred with [PtEt2(COD)], as a result of the anti-Markovnikov addition of Pt–H, generated by the β-hydride elimination of an Et group, across the double-bond.