Process for producing dimethylorganoboranes

摘要

A process for preparing a dimethylorganoborane represented by the formula R*BMe2 wherein R* is a chiral organyl group attached to the boron, B is boron and Me is methyl comprising treating a chiral boronic ester R*B(OR')2 with a methyl magnesium salt or trimethylaluminum wherein R* is the same chiral organyl group and R' is alkyl.