First slide

Alkynes

Question

Sodium propynide is allowed to react with 2-bromo- 2- methylpropane. The major product formed is:

Moderate

A

Propyne and 2-methylpropane
B

Propyne and 2-methylpropene
C

4,4-D imethyl-2 -Pentyne
D

None of the above as no reaction takes place

Solution

The reaction is E2, since the alkyl halide is a tertiary RX, the propylide ion cant attack at the electrophillic carbon. Hence favour elimination reaction.

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