Frankincense and Medicinal Plants: Recent Advances in Research and Industry
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Contemporary Organosilicon Chemistry
Contemporary organosilicon chemistry Edited by Steve Marsden Generated on 05 October 2021, 02:13 Imprint Beilstein Journal of Organic Chemistry www.bjoc.org ISSN 1860-5397 Email: [email protected] The Beilstein Journal of Organic Chemistry is published by the Beilstein-Institut zur Förderung der Chemischen Wissenschaften. This thematic issue, published in the Beilstein Beilstein-Institut zur Förderung der Journal of Organic Chemistry, is copyright the Chemischen Wissenschaften Beilstein-Institut zur Förderung der Chemischen Trakehner Straße 7–9 Wissenschaften. The copyright of the individual 60487 Frankfurt am Main articles in this document is the property of their Germany respective authors, subject to a Creative www.beilstein-institut.de Commons Attribution (CC-BY) license. Contemporary organosilicon chemistry Steve Marsden Editorial Open Access Address: Beilstein Journal of Organic Chemistry 2007, 3, No. 4. School of Chemistry, University of Leeds, Leeds LS2 9JT, UK doi:10.1186/1860-5397-3-4 Email: Received: 06 February 2007 Steve Marsden - [email protected] Accepted: 08 February 2007 Published: 08 February 2007 © 2007 Marsden; licensee Beilstein-Institut License and terms: see end of document. Abstract Editorial for the Thematic Series on Contemporary Organosilicon Chemistry. The field of organosilicon chemistry has a rich and varied the 1990s, and equivalent to the number appearing in the much history, and has long since made the progression from chemical longer established field of organoboron chemistry -
Herbert Charles Brown, a Biographical Memoir
NATIONAL ACADEMY OF SCIENCES H E R B E R T Ch ARLES BROWN 1 9 1 2 — 2 0 0 4 A Biographical Memoir by E I-I CH I N EGIS HI Any opinions expressed in this memoir are those of the author and do not necessarily reflect the views of the National Academy of Sciences. Biographical Memoir COPYRIGHT 2008 NATIONAL ACADEMY OF SCIENCES WASHINGTON, D.C. Photograph Credit Here. HERBERT CHARLES BROWN May 22, 1912–December 19, 2004 BY EI -ICH I NEGISHI ERBERT CHARLES BROWN, R. B. Wetherill Research Profes- Hsor Emeritus of Purdue University and one of the truly pioneering giants in the field of organic-organometallic chemistry, died of a heart attack on December 19, 2004, at age 92. As it so happened, this author visited him at his home to discuss with him an urgent chemistry-related matter only about 10 hours before his death. For his age he appeared well, showing no sign of his sudden death the next morn- ing. His wife, Sarah Baylen Brown, 89, followed him on May 29, 2005. They were survived by their only child, Charles A. Brown of Hitachi Ltd. and his family. H. C. Brown shared the Nobel Prize in Chemistry in 1979 with G. Wittig of Heidelberg, Germany. Their pioneering explorations of boron chemistry and phosphorus chemistry, respectively, were recognized. Aside from several biochemists, including V. du Vigneaud in 1955, H. C. Brown was only the second American organic chemist to win a Nobel Prize behind R. B. Woodward, in 1965. His several most significant contribu- tions in the area of boron chemistry include (1) codiscovery of sodium borohyride (1972[1], pp. -
Trans-Boundary Forest Resources in West and Central Africa ______
Trans-boundary forest resources in West and Central Africa __________________________________________________________________________________ _ AFF / hamane Ma wanou r La Nigeria© of part southern the Sahelian in the in orest f rest o lands©AFF f k r y r a D P 2008 Secondary Trans-boundary forest resources in West and Central Africa Report (2018) i Trans-boundary forest resources in West and Central Africa __________________________________________________________________________________ _ TRANS-BOUNDARY FOREST RESOURCES IN WEST AND CENTRAL AFRICA Report (2018) Martin Nganje, PhD © African Forest Forum 2018. All rights reserved. African Forest Forum United Nations Avenue, Gigiri P.O. Box 30677-00100 Nairobi, Kenya Tel: +254 20 722 4203 Fax: +254 20 722 4001 E-mail: [email protected] Website: www.afforum.org ii Trans-boundary forest resources in West and Central Africa __________________________________________________________________________________ _ TABLE OF CONTENTS LIST OF FIGURES ................................................................................................................. v LIST OF TABLES .................................................................................................................. vi ACRONYMS AND ABBREVIATIONS ................................................................................... vii EXECUTIVE SUMMARY ....................................................................................................... ix 1. INTRODUCTION .............................................................................................................. -
Phytologia (June 2006) 88(1) the GENUS SENEGALIA
.. Phytologia (June 2006) 88(1) 38 THE GENUS SENEGALIA (FABACEAE: MIMOSOIDEAE) FROM THE NEW WORLD 1 2 3 David S. Seigler , John E. Ebinger , and Joseph T. Miller 1 Department of Plant Biology, University of Illinois, Urbana, Illinois 61801, U.S.A. E-mail: [email protected] 2 Emeritus Professor of Botany, Eastern Illinois University, Charleston, Illinois 61920, U.S.A. E-mail: [email protected] 3 Joseph T. Miller, Roy J. Carver Center for Comparative Genomics, Department of Biological Sciences, 232 BB, University of Iowa, Iowa City, IA 52242, U.S.A. E-mail: [email protected] ABSTRACT Morphological and genetic differences separating the subgenera of Acacia s.l. and molecular evidence that the genus Acacia s.l. is polyphyletic necessitate transfer of the following New World taxa from Acacia subgenus Aculeiferum Vassal to Senegalia, resulting in fifty-one new combinations in the genus Senegalia: Senegalia alemquerensis (Huber) Seigler & Ebinger, Senegalia altiscandens (Ducke) Seigler & Ebinger, Senegalia amazonica (Benth.) Seigler & Ebinger, Senegalia bahiensis (Benth.) Seigler & Ebinger, Senegalia bonariensis (Gillies ex Hook. & Arn.) Seigler & Ebinger, Senegalia catharinensis (Burkart) Seigler & Ebinger, Senegalia emilioana (Fortunato & Cialdella) Seigler & Ebinger, Senegalia etilis (Speg.) Seigler & Ebinger, Senegalia feddeana (Harms) Seigler & Ebinger, Senegalia fiebrigii (Hassl.) Seigler & Ebinger, Senegalia gilliesii (Steud.) Seigler & Ebinger, Senegalia grandistipula (Benth.) Seigler & Ebinger, Senegalia huberi (Ducke) Seigler & Ebinger, Senegalia kallunkiae (Grimes & Barneby) Seigler & Ebinger, Senegalia klugii (Standl. ex J. F. Macbr.) Seigler & Ebinger, Senegalia kuhlmannii (Ducke) Seigler & Ebinger, Senegalia lacerans (Benth.) Seigler & Ebinger, Senegalia langsdorfii (Benth.) Seigler & Ebinger, Senegalia lasophylla (Benth.) Seigler & Ebinger, Senegalia loretensis (J. F. Macbr.) Seigler & Ebinger, Senegalia macbridei (Britton & Rose ex J. -
Cytotoxic Activity of Extracts/Fractions of Various Parts of Pistacia
nal atio Me sl d n ic a in r e Uddin et al., Transl Med 2013, 3:2 T Translational Medicine DOI: 10.4172/2161-1025.1000118 ISSN: 2161-1025 Research Article Open Access Cytotoxic Activity of Extracts/Fractions of Various Parts of Pistacia Integerrima Stewart Ghias Uddin1*, Abdur Rauf1, Bina Shaheen Siddiqui2 and Haroon Khan3 1Institute of Chemical Sciences, University of Peshawar, Pakistan 2H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Pakistan 3Gandhara College of Pharmacy, Gandhara University, Peshawar, Pakistan Abstract The aim of present study was to scrutinize cytotoxic activity of extracts/fractions of various parts of Pistacia integerrima Stewart in an established in-vitro brine shrimp cytotoxic assay. The extracts/fractions of different parts of the plant demonstrated profound cytotoxic effect against Artemia salina (Leach) shrimp larvae. Of the various parts of plant tested, galls accumulated most cytotoxic agents. Among the tested extracts/fractions, hexane was least cytotoxic and therefore indicated more polar nature of cytotoxic constituents. In conclusions, extracts/fractions of various parts of P. integerrima exhibited marked cytotoxic profile of more polar nature. Keywords: Pistacia integerrim; Extracts/fractions of different parts; Dir), Khyber Pakhtunkhwa, Pakistan in the month of February, 2010. Brine shrimp cytotoxic assay The identification of plant material was done by Dr. Abdur Rashid plant taxonomist Department of Botany, University of Peshawar. A voucher Introduction specimen no (RF-895) was deposited in the herbarium of the same Pistacia integerrima (J. L. Stewart ex Brandis) belongs to family institution. anacardiacea. It mostly grows at a height of 12000 to 8000 feet in Extraction and fractionation Eastern Himalayan regions [1]. -
Ethnobotanical Studies of Shrubs and Trees of Agra Valley Parachinar, Upper Kurram Agency, Pakistan
AJAIB ET AL (2014), FUUAST J. BIOL., 4(1): 73-81 ETHNOBOTANICAL STUDIES OF SHRUBS AND TREES OF AGRA VALLEY PARACHINAR, UPPER KURRAM AGENCY, PAKISTAN MUHAMMAD AJAIB1, SYED KHALIL HAIDER1, ANNAM ZIKREA1 AND MUHAMMAD FAHEEM SIDDIQUI2 1Department of Botany, GC University Lahore-Pakistan 2Department of Botany, University of Karachi, Karachi-Pakistan Corresponding author e-mail: [email protected]; [email protected] Abstract Aboriginal folks live diligently connected with nature and predominantly depend on it for their persistence. The present study conducted in 11 villages of Agra Valley, Parachinar and reported 18 Angiospermic shrubs belonging to 3 monocot (Poaceae, Cyperaceae, Typhaceae) and 10 dicot families (predominantly Apocyanaceae, Rosaceae, Lamiaceae); in addition to 27 trees of ethnobotanical importance including 1 Gymnosperm (Pinaceae) and 26 Angiosperms having single monocot (Arecaceae) and 18 dicot families (predominantly Moraceae, Salicaceae, Fabaceae). Nearly one-third species had single-usage. Two-usage and multi-usage shrubs were consumed for crafting (25%), medicinal (22.5%), culinary (11%) and miscellaneous other purposes. 11% single- usage, 30% two-usage and 59% multi-usage trees were employed for medicinal (22%), fuel (21%), crafting (19%) and for several other purposes. Different parts of plants were utilized either in powder form, decoction, infusion or whole plant extract to cure various diseases. Unfortunately, the knowledge of commercial and remedial possessions of many plants attained by methods of trial and error, gathered and supplemented through peers and delivered from one generation to another, was deprived of any written documentation. Therefore, the documentation of plants along with their important uses should be beneficial, not only for the indigenous people of the area but also for the country as a whole. -
Chemical and Molecular Characterization of Marigold
Biochemical and Radio Labeling Studies of Venom Naja naja karachiensis with its Neutralization by Medicinal Plants of Pakistan By Muhammad Hassham Hassan Bin Asad CIIT/FA11-R60-003/ATD PhD Thesis In Pharmacy COMSATS Institute of Information Technology Abbottabad - Pakistan Fall, 2015 COMSATS Institute of Information Technology Biochemical and Radio Labeling Studies of Venom Naja naja karachiensis with its Neutralization by Medicinal Plants of Pakistan A Thesis Presented to COMSATS Institute of Information Technology, Abbottabad In partial fulfillment of the requirements for the degree of PhD (Pharmacy) By Muhammad Hassham Hassan Bin Asad CIIT/FA11-R60-003/ATD Fall, 2015 ii Biochemical and Radio Labeling Studies of Venom Naja naja karachiensis with its Neutralization by Medicinal Plants of Pakistan A Post Graduate Thesis submitted to the Department of Pharmacy as partial fulfillment of the requirement for the award of Degree of PhD in Pharmacy. Name Registration Number Muhammad Hassham Hassan CIIT/FA11-R60-003/ATD Bin Asad Supervisor Dr. Izhar Hussain Professor Department of Pharmacy Abbottabad Campus. COMSATS Institute of Information Technology (CIIT) Abbottabad Campus. December, 2015 iii Final Approval This thesis titled Biochemical and Radio Labeling Studies of Venom Naja naja karachiensis with its Neutralization by Medicinal Plants of Pakistan By Muhammad Hassham Hassan Bin Asad CIIT/FA11-R60-003/ATD Has been approved For the COMSATS Institute of Information Technology, Abbottabad External Examiner: __________________________________________ Dr………… ……… External Examiner: __________________________________________ Dr………… ……… Supervisor: ________________________________________________ Prof. Dr. Izhar Hussain Department of Pharmacy, Abbottabad HoD/ Chairperson: ____________________________________________________ Prof. Dr. Nisar-ur-Rehman Department of Pharmacy, Abbottabad Dean, Faculty of Sciences: _______________________________________________ Prof. Dr. -
ISTA List of Stabilized Plant Names 7Th Edition
ISTA List of Stabilized Plant Names th 7 Edition ISTA Nomenclature Committee Chair: Dr. M. Schori Published by All rights reserved. No part of this publication may be The Internation Seed Testing Association (ISTA) reproduced, stored in any retrieval system or transmitted Zürichstr. 50, CH-8303 Bassersdorf, Switzerland in any form or by any means, electronic, mechanical, photocopying, recording or otherwise, without prior ©2020 International Seed Testing Association (ISTA) permission in writing from ISTA. ISBN 978-3-906549-77-4 ISTA List of Stabilized Plant Names 1st Edition 1966 ISTA Nomenclature Committee Chair: Prof P. A. Linehan 2nd Edition 1983 ISTA Nomenclature Committee Chair: Dr. H. Pirson 3rd Edition 1988 ISTA Nomenclature Committee Chair: Dr. W. A. Brandenburg 4th Edition 2001 ISTA Nomenclature Committee Chair: Dr. J. H. Wiersema 5th Edition 2007 ISTA Nomenclature Committee Chair: Dr. J. H. Wiersema 6th Edition 2013 ISTA Nomenclature Committee Chair: Dr. J. H. Wiersema 7th Edition 2019 ISTA Nomenclature Committee Chair: Dr. M. Schori 2 7th Edition ISTA List of Stabilized Plant Names Content Preface .......................................................................................................................................................... 4 Acknowledgements ....................................................................................................................................... 6 Symbols and Abbreviations .......................................................................................................................... -
MICROREVIEW Reactivity of Polar Organometallic Compounds In
MICROREVIEW Reactivity of Polar Organometallic Compounds in Unconventional Reaction Media: Challenges and Opportunities Joaquin García-Álvarez,*[a] Eva Hevia,*[b] and Vito Capriati*[c] This paper is gratefully dedicated to the memory of Dr. Guy Lavigne Abstract: Developing new green solvents in designing chemical chemicals in chemical transformations is, indeed, solvents used products and processes or successfully employing the already as reaction media, which account for 80–90% of mass utilization existing ones is one of the key subjects in Green Chemistry and is in a typical pharmaceutical/fine chemical operational process. especially important in Organometallic Chemistry, which is an Thus, the solvent itself is often a critical parameter especially in interdisciplinary field. Can we advantageously use unconventional drug product manufacturing and is as well responsible for most reaction media in place of current harsh organic solvents also for waste generated in the chemical industries and laboratories.[3] polar organometallic compounds? This Microreview critically Following these considerations, some of the most critical analyses the state-of-the-art on this topic and showcases recent and intriguing questions that arise are: Can we get traditional developments and breakthroughs which are becoming new research organic solvents out of organometallic reactions?[4] Can we use directions in this field. Because metals cover a vast swath of the protic, recyclable, biodegradable, and cheap unconventional periodic table, the content is organised into three Sections solvents also for highly reactive organometallic compounds? discussing the reactivity of organometallic compounds of s-, p- and Answering these questions would not only mean to break new d-block elements in unconventional solvents. -
The Synthesis and Thermochemistry of Organoboron and Phosphorus
The Synthesis and Thermochemistry of Organoboron and Phosphorus Compounds A Thesis submitted by KHAWAJA SABIR HÜ3SAIR in candidature for the degree of Doctor of Philosophy of the University of London Royal Holloway College, Englefleld Green, Surrey. March, 1970. (U.K.;. CLASS N l / V u j AGO. No. I DA ft ACa â u L j j L À ProQuest Number: 10123886 All rights reserved INFORMATION TO ALL USERS The quality of this reproduction is dependent upon the quality of the copy submitted. In the unlikely event that the author did not send a complete manuscript and there are missing pages, these will be noted. Also, if material had to be removed, a note will indicate the deletion. uest. ProQuest 10123886 Published by ProQuest LLC(2016). Copyright of the Dissertation is held by the Author. All rights reserved. This work is protected against unauthorized copying under Title 17, United States Code. Microform Edition © ProQuest LLC. ProQuest LLC 789 East Eisenhower Parkway P.O. Box 1346 Ann Arbor, Ml 48106-1346 "To all those who wished me to reach this stage" AOKNOlVLEDGmmTS The author wishes to express his gratitude to Dr# Arthur Finch for his Invaluable official supervision and encouragement. He Is highly thankful to Dr. P.J. Gardner for his entire supervision, unfailing encouragement and friendly advice. He Is also thankful to all the academic, technical and clerical staff, of the Chemistry Department, Royal Holloway College, for their co-operation and assistance. He wishes to thank the Petroleum Research Fund for a maintenance grant. ABSTRACT The synthesis and standard heats of formation of some substituted arylboroxlnes are reported. -
Présentation Powerpoint
R-M R-R’ R’-X Cross-Coupling Reactions R-M Functionnalized Organometallic Reagents R-X-R’ R-X-M C-N, C-O and C-S Bond Formation R-B(R’)2 Introduction to Organoboron Chemistry R-Si(R’)3 Introduction to Organosilicon Chemistry Carbometallation Reactions R-M R-R’ R’-X Introduction to Organosilicon Chemistry Generalities R-M Synthesis of Organosilicon Compounds R-X-R’ Hydrosilylation of Unsaturated Systems R-X-M Hiyama Cross-Coupling Hosomi-Sakurai Allylations R-B(R’)2 Brook Rearrangement R-Si(R’)3 Anion-Relay Chemistry (ARC) R-M R-R’ Introduction to Organosilicon Chemistry R’-X Generalities R-M Electronegativity s-Bond strengths (kcal.mol-1) Average Bond Length (Å) Si 1,7 C-C 83 R-X-R’ C-Si 76 C-C 1,54 Si-Si 53 C-Si 1,87 R-X-M H 2,1 C-H 83 C 2,5 Si-H 76 C-O 1,43 R-B(R’)2 Si-O 1,66 Cl 3,0 C-O 86 Si-O 108 N 3,0 R-Si(R’)3 C-N 83 O 3,5 Si-N 76 C-F 116 F 4,0 Si-F 135 R-M R-R’ Introduction to Organosilicon Chemistry R’-X Generalities R-M Electronegativity s-Bond strengths (kcal.mol-1) Average Bond Length (Å) Si 1,7 C-C 83 R-X-R’ C-Si 76 C-C 1,54 Si-Si 53 C-Si 1,87 R-X-M H 2,1 C-H 83 C 2,5 Si-H 76 C-O 1,43 R-B(R’)2 Si-O 1,66 Cl 3,0 C-O 86 Si-O 108 N 3,0 R-Si(R’)3 C-N 83 O 3,5 Si-N 76 C-F 116 F 4,0 Si-F 135 R-M R-R’ Introduction to Organosilicon Chemistry R’-X Generalities R-M Electronegativity s-Bond strengths (kcal.mol-1) Average Bond Length (Å) Si 1,7 C-C 83 R-X-R’ C-Si 76 C-C 1,54 Si-Si 53 C-Si 1,87 R-X-M H 2,1 C-H 83 C 2,5 Si-H 76 C-O 1,43 R-B(R’)2 Si-O 1,66 Cl 3,0 C-O 86 Si-O 108 N 3,0 R-Si(R’)3 C-N 83 O 3,5 Si-N 76 C-F 116 F 4,0 Si-F 135 R-M -
Synoptic Overview of Exotic Acacia, Senegalia and Vachellia (Caesalpinioideae, Mimosoid Clade, Fabaceae) in Egypt
plants Article Synoptic Overview of Exotic Acacia, Senegalia and Vachellia (Caesalpinioideae, Mimosoid Clade, Fabaceae) in Egypt Rania A. Hassan * and Rim S. Hamdy Botany and Microbiology Department, Faculty of Science, Cairo University, Giza 12613, Egypt; [email protected] * Correspondence: [email protected] Abstract: For the first time, an updated checklist of Acacia, Senegalia and Vachellia species in Egypt is provided, focusing on the exotic species. Taking into consideration the retypification of genus Acacia ratified at the Melbourne International Botanical Congress (IBC, 2011), a process of reclassification has taken place worldwide in recent years. The review of Acacia and its segregates in Egypt became necessary in light of the available information cited in classical works during the last century. In Egypt, various taxa formerly placed in Acacia s.l., have been transferred to Acacia s.s., Acaciella, Senegalia, Parasenegalia and Vachellia. The present study is a contribution towards clarifying the nomenclatural status of all recorded species of Acacia and its segregate genera. This study recorded 144 taxa (125 species and 19 infraspecific taxa). Only 14 taxa (four species and 10 infraspecific taxa) are indigenous to Egypt (included now under Senegalia and Vachellia). The other 130 taxa had been introduced to Egypt during the last century. Out of the 130 taxa, 79 taxa have been recorded in literature. The focus of this study is the remaining 51 exotic taxa that have been traced as living species in Egyptian gardens or as herbarium specimens in Egyptian herbaria. The studied exotic taxa are accommodated under Acacia s.s. (24 taxa), Senegalia (14 taxa) and Vachellia (13 taxa).