lithium perchlorate mediated amination reaction of aldehydes: a novel method for synthesis of n, n-dialkyl-p-silylated amines*

p-silylated n,n-dialkyl amines (5) were easily synthesized in good to excellent yield from aldehydes (1), trimethylsilyldialkylamines (2), and trimethylsilylmethylmagnesium chloride (4) in the presence of 5 m lithium perchlorate solution in diethyl ether. the reaction of (2) with aldehyde proceeded smoothly in the lici0 , to give the imimum salt (3). addition of trimethylsilylmethylrnagnesium chloride (4) gave the desired product