Consider the following reactions: I. CH_3CH_2CH(OH)CH_3 H^+ A (major) II. (CH_3)_3C-CH(OH)CH_3 H^+ B (major) A and B (both alkenes) respectively are

MHT CET Chemistry question

Consider the following reactions: I. \mathrm{CH_3CH_2CH(OH)CH_3 \xrightarrow{H^+} A} (major) II. \mathrm{(CH_3)_3C-CH(OH)CH_3 \xrightarrow{H^+} B} (major) A and B (both alkenes) respectively are

(A) ;
(B) ;
(C) ; Correct
(D) ;

Answer: (C)

Solution

In I the Saytzeff product, but-2-ene, is major over but-1-ene; in II the secondary cation rearranges by a 1,2-methyl shift to the tertiary cation

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Question ID VK-079903