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The two alkenes shown below were synthesized from alkynes. Identify the alkyl br

ID: 969576 • Letter: T

Question

The two alkenes shown below were synthesized from alkynes. Identify the alkyl bromides that were reacted with acetylene to form the alkyne, and the method of alkyne reduction.

a)

The alkyl bromide used for alkylation of the 'left' side (as drawn) of acetylene: _________abcde

The alkyl bromide used for alkylation of the 'right' side (as drawn) of acetylene: _________abcde

The method of alkyne reduction: _________ab

b)

The alkyl bromide used for alkylation of the 'left' side (as drawn) of acetylene: _________abcde

The alkyl bromide used for alkylation of the 'right' side (as drawn) of acetylene: _________abcde

The method of alkyne reduction: _________ab

a. CH3(CH2)6CH2Br b. CH3(CH2)11CH2Br c. CH3(CH2)3CH2Br d. (CH3)2CHCH2Br e. CH3CH2CH(CH3)CH2CH2Br

Explanation / Answer

a) a (left side)

b (right side)

a for reduction

b)

a (left side)

c (right side)

b for reduction