2,2-Dimethyloxirane (isobutylene oxide) is treated with LiAlH4 in ether and then with dilute acid. The major product is

JEE Main levelSingle correct optionDifficulty 2 of 3ro007

2,2-Dimethyloxirane (isobutylene oxide) is treated with $LiAlH X_{4}$ in ether and then with dilute acid. The major product is

Hydride attacks the less hindered epoxide carbon (the

CH X_{2}

), SN2 style. The oxygen stays on the more substituted carbon, giving

(CH X_{3}) X_{3} C - OH

after work-up: 2-methylpropan-2-ol.