Chemistry Exam  >  Chemistry Videos  >  Organic Chemistry  >  Wittig Reaction

Wittig Reaction Video Lecture | Organic Chemistry

33 videos|92 docs|46 tests

FAQs on Wittig Reaction Video Lecture - Organic Chemistry

1. What is the Wittig reaction?
Ans. The Wittig reaction is a chemical reaction that allows the synthesis of alkenes from aldehydes or ketones using a phosphorus ylide and a base. It is a powerful method for constructing carbon-carbon double bonds and is widely used in organic synthesis.
2. How does the Wittig reaction work?
Ans. In the Wittig reaction, a phosphorus ylide, which is a compound with a negatively charged carbon atom adjacent to a positively charged phosphorus atom, reacts with an aldehyde or ketone. The ylide attacks the carbonyl carbon, forming a new carbon-carbon double bond. This reaction proceeds through a four-membered cyclic intermediate known as a betaine, which then rearranges to give the desired alkene product.
3. What are the advantages of the Wittig reaction?
Ans. The Wittig reaction offers several advantages in organic synthesis. It allows for the selective synthesis of alkenes from aldehydes or ketones, providing a diverse range of products. It is a relatively simple and efficient process, often requiring mild reaction conditions. Additionally, the reaction is highly stereoselective, meaning it can generate specific geometric isomers of the alkene.
4. Are there any limitations or challenges associated with the Wittig reaction?
Ans. Yes, there are limitations to the Wittig reaction. One major challenge is the formation of side products, such as the formation of undesired E/Z isomers or the formation of phosphine oxide byproducts. These side reactions can reduce the overall yield and complicate the purification of the desired product. Additionally, the reaction may not be suitable for substrates that are sensitive to the reaction conditions or have functional groups that can react with the ylide.
5. Can the Wittig reaction be used for the synthesis of complex molecules?
Ans. Yes, the Wittig reaction can be used for the synthesis of complex molecules. By carefully designing the phosphorus ylide and choosing appropriate reaction conditions, chemists can control the regio- and stereochemistry of the reaction, allowing for the construction of intricate carbon frameworks. The Wittig reaction has been successfully applied in the synthesis of natural products, pharmaceuticals, and other complex organic compounds.
33 videos|92 docs|46 tests
Explore Courses for Chemistry exam
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev
Download the FREE EduRev App
Track your progress, build streaks, highlight & save important lessons and more!
Related Searches

pdf

,

past year papers

,

Free

,

shortcuts and tricks

,

Objective type Questions

,

MCQs

,

Wittig Reaction Video Lecture | Organic Chemistry

,

Viva Questions

,

practice quizzes

,

video lectures

,

ppt

,

Previous Year Questions with Solutions

,

Extra Questions

,

Sample Paper

,

Semester Notes

,

Summary

,

Exam

,

Wittig Reaction Video Lecture | Organic Chemistry

,

Wittig Reaction Video Lecture | Organic Chemistry

,

study material

,

mock tests for examination

,

Important questions

;