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Which alkene is formed from the followin...

Which alkene is formed from the following ylide carbonyl pair
`CH_(3)CH_(2)CH_(2)CH=PPh_(3)+2"=Butanone"`

A

3-methyl-3-heptene

B

4-methyl-3-heptene

C

5-methyl-3-heptene

D

1-methyl-5-methane

Text Solution

Verified by Experts

The correct Answer is:
A
`underset("2-Butanone")(CH_3CH_2-overset(CH_3)overset(|)C=O+CH_3CH_2CH_2CH=P Ph_3 rarr underset(3-methyl, 3-heptene")(CH_3CH_2overset(CH_3)overset(|)C=CHCH_2CH_2CH_3)+Ph_3PO`
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