1.
Find the major product of the following reaction:

A cyclobutane ring bearing, on the same ring carbon, a hydroxyl group (OH-OH) and a 1-hydroxy-2-methylpropyl1\text{-hydroxy-}2\text{-methylpropyl} substituent (CH(OH)CH(CH3)2-\,CH(OH)CH(CH_3)_2). The vicinal diol is treated with H+H^+.