Question

Betaine intermediate is formed in which of
the following reaction?
Options
O Perkin Condensation
O Aldol Condensation
Claisen condensation
O Wittig reaction​

Answer 1

○ ALDOL CONDENSATION

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Answer 2

Answer:

The correct answer of this question is Wittig Reaction.

Explanation:

Given - Betaine intermediate.

To Find - Write the reaction of Betaine intermediate.

Betaine -  A molecule with a neutral formal charge and non adjacent cationic and anionic functional groups.

The cycloaddition of the ylide to the carbonyl produces an oxaphosphetane, a four-membered cyclic intermediate. Preliminary proposed pathways lead to a zwitterionic intermediate called betaine, which then closes to the oxaphosphetane.