Metal Mediated Synthesis I - - Unit 4 - Week 3 https://onlinecourses.nptel.ac.in/noc19_cy15/uni...
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Unit 4 - Week 3
Register for Certification exam Assignment_3_Week 3_Metal Mediated Synthesis I
Course The due date for submitting this assignment has passed. outline As per our records you have not submitted this Due on 2019-02-27, 23:59 IST. assignment. How to access the portal? 1) The following ligand is commercially known as 1 point
Week 1
Week 2
Week 3
Lecture 11 :Sonogashira Coupling Reaction
Lecture 12 S-Phos :Heck Coupling X-Phos Reaction Dave-Phos Lecture 13 :Assymetric John-Pho Heck Reaction Introduction to No, the answer is incorrect. Buchwald- Score: 0 Hartwig Accepted Answers: Coupling Reaction Dave-Phos
Lecture 14 2) “The relative rate of prop-1-ene is higher than prop-1-en-2-ylbenzene in a 1 point :Buchwald- palladium catalyzed Heck reaction” State whether true or false Hartwig Coupling True Reaction False Lecture 15 :Role of No, the answer is incorrect. Ligands its Score: 0 Influence in Buchwald- Accepted Answers: Hartwig True Coupling © 2014 NPTEL - Privacy & Terms - Honor Code - FAQs - Reaction 3) Predict the product of the following reaction 1 point A project of In association with Download Videos
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1 of 5 Thursday 02 May 2019 04:42 PM Metal Mediated Synthesis I - - Unit 4 - Week 3 https://onlinecourses.nptel.ac.in/noc19_cy15/uni...
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Assignment_3_Week_3_Solun_Metal Mediated Synth I
Week 4
Interaction session
No, the answer is incorrect. Score: 0 Accepted Answers:
2 of 5 Thursday 02 May 2019 04:42 PM Metal Mediated Synthesis I - - Unit 4 - Week 3 https://onlinecourses.nptel.ac.in/noc19_cy15/uni...
4) The major product for the following reaction is; 1 point
No, the answer is incorrect. Score: 0 Accepted Answers:
5) Bulkiness of the ligand facilitates which of the following step in palladium 1 point catalyzed coupling reaction?
3 of 5 Thursday 02 May 2019 04:42 PM Metal Mediated Synthesis I - - Unit 4 - Week 3 https://onlinecourses.nptel.ac.in/noc19_cy15/uni...
reductive elimination Both of the above None of the above
No, the answer is incorrect. Score: 0 Accepted Answers: reductive elimination
6) Electron richness of the metal center facilitate the …………. in the cross 1 point coupling reaction.
Oxidative addition Insertion b-hydride elimination Reductive elimination
No, the answer is incorrect. Score: 0 Accepted Answers: Oxidative addition
7) “The active catalyst in Heck reaction is Pd(II)” State whether true or false 1 point
True
False
No, the answer is incorrect. Score: 0 Accepted Answers: False
8) For Heck coupling reaction in olefin insertion step oxidation step of palladium 1 point will change as-
Pd(0) à Pd(II) Pd(II) à Pd(II) Pd(II) à Pd(IV) Pd(II) à Pd(0)
No, the answer is incorrect. Score: 0 Accepted Answers: Pd(II) à Pd(II)
9) “In Sonogashira reaction you will get a terminal alkyne as the product” State 1 point whether true or false
True
False
No, the answer is incorrect. Score: 0 Accepted Answers: False
10)Base such as amine is required in Sonogashira Coupling Reaction for 1 point
4 of 5 Thursday 02 May 2019 04:42 PM Metal Mediated Synthesis I - - Unit 4 - Week 3 https://onlinecourses.nptel.ac.in/noc19_cy15/uni...
The formation of alkynyl copper species The reduction of Pd(II) precatalyst to active Pd(0) complex Both A & B None of these
No, the answer is incorrect. Score: 0 Accepted Answers: Both A & B
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