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Wittig reaction : The reaction of a ph...

Wittig reaction :
The reaction of a phosphorus ylide with an aldehyde (or) ketone introduces a carbon-carbon double bond is place of the bond .
`R-overset(O)overset(||)(C)-R+ Ph_(3)P = CH_(2) to R - overset(CH_(2))overset(||)(C)-R+ Ph_(3)P = O`
Mechanism :

Driving force of the reaction is high blood energy of `(P = O) . DeltaH = -ve)`

Major product (A) is :

A

B

C

D

Text Solution

Verified by Experts

The correct Answer is:
A
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