Question

what would be the major product obtained from hydroboration oxidation of the following alkane. 2- methyl 2- butene. 1- methyl cyclohexane​

Answer 1

Explanation:

The major product will be a racemic mixture of trans-2-methylcyclohexanol. The reaction amounts to an anti-Markovnikov addition of water to the C=C double bond. Instead of adding to C-2 of the ring in a Markovnikov reaction, the H adds to C-1, and the OH adds to C-2.

The reaction is also a cis addition, so the H and OH end up on the same side of the ring. Chemical reaction with a product from manage. The product is trans-2-methylcyclohexanol. Note that the product has two chiral centres. It will be a racemic mixture of (1R,2R)- and (1S,2S)-2-methylcyclohexanol.