(CH_3)_3C-Br [-HBr] Alc. NH_3 Y Y in this reaction is _____

MHT CET Chemistry question

Y in this reaction is

(A)2-methylpropan-2-amine
(B)2-methylpropeneCorrect
(C)2-amino-2-methylpropane
(D)But-2-ene

Answer: (B)

Solution

A tertiary halide is too hindered for SN2 attack by , and ammonia (a base) removes a β-hydrogen with loss of HBr, so elimination gives 2-methylpropene; the amines

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Question ID VK-043718