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Provide the Structure of the Ylide Needed to Prepare 3-Ethyl-3-Heptene

Question 39

Multiple Choice

Provide the structure of the ylide needed to prepare 3-ethyl-3-heptene from 3-pentanone using a Wittig reaction.

A) Ph₃P=CH(CH₂CH₃) ₂
B) Ph₃P=CHCH₂CH₃
C) Ph₃P=CHCH₂CH₂CH₃
D) Ph₃P=CH₂
E) Ph₃P=CHCH₂(CH₃) ₂

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