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How many moles of sodamide are required ...

How many moles of sodamide are required to synthesize and alkyne from the following compound? `CH_2CH_2CHBrCH_2Br`

A

One mole

B

Two moles

C

Four moles

D

Three moles

Text Solution

Verified by Experts

The correct Answer is:
D
Vic-dihalides undergo double dehydrohalogenationn requiring two moles of `NaNH_2`. The terminal alkyne is converted to the alkynyl anion as soon as it is formed. Thus three moles of the base are used in the overall reaction.
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