JEE Main levelSingle correct optionDifficulty 2 of 3ro119
1,2-Epoxypropane (methyloxirane) is treated with LiAlHX4 in ether followed by HX3OX+. The product is
Apropane-1,2-diol
Bpropanal
Cpropan-2-ol
Dpropan-1-ol
Answer: C
Hydride opens the epoxide by SN2 attack at the less hindered carbon, here the CHX2. The oxygen stays on the more substituted carbon, so the product is CHX3−CH(OH)−CHX3, propan-2-ol.