The sec-butylbenzene produced by solvolysis of 2-phenyl-2-chlorobutane Grignard reagent in (+) 2,3-dimethoxybutane and benzene is optically inactive. The 2-↓-isopropyl-4-↑-methylcyclohexanols obtained by the reducing action of isopropyl Grignard reagent on racemic 2-↓-isopropyl-4-↑-methylcyclohexanone in (+) dimethoxybutane are optically active to the extent of 6 and 15%. The bromomagnesium enolates obtained by the action of isopropyl Grignard reagent on racemic 2-↓-isopropyl-4-↑-methylcyclohexanone in (+) dimethoxybutane regenerate the parent ketone in an optically inactive state but the diastereomeric 2-↑-isopropyl-4-↑-methylcyclohexanone also produced is optically active to the extent of about 6%.