Question

The major product of the following reaction is:
$Ph-C(=O)-CH_2CH_2-CN$
(i) $CH_{3}MgBr (excess) (ii) H_{+}H_{2}O$

• A. \(Ph-CH(CH_3)-CH_2-COCH_3\)
• B. $Ph-C(CH_3)(OH)-CH(CH_3)_2$
• C. $Ph-CO-CH_2CH_2CH_3$
• D. $Ph-CH(CH_3)-CH_2-CN$

Hint:

Grignard reagents attack both carbonyl and nitrile groups; nitriles give ketones, while aldehydes/ketones give alcohols after hydrolysis.