Efficient synthesis of protected β-phenylethylamines, enantiomerically pure protected β-phenyl-α-benzylethylamines and β-phenyl-α-isopropylethylamines using organozinc chemistry
The direct, stereospecific amination of alkylboronic and borinic esters can be conducted by treatment of the organoboron compound with methoxyamine and potassium tert-butoxide. In addition to being stereospecific, this process also enables the direct amination of tertiary boronic esters in an efficient fashion.