Reactions of aminals with amides and N-silylated amides of acids containing a three- or four-coordinate phosphorus atom
The reactions of 2-substituted 1,3,2-oxazaphospholidines and 1,3,2-dioxaphospholanes containing an endo- or exo-cyclic secondary amino group with aminals lead to the formation of dimers of cyclic phosphonimidates or phosphinimidates.The products of the reactions of acetylphosphoramidites and bis(trimethylsilyl)phosphoramidites with aminals and N-(alkoxymethyl)dialkylamines are dialkyl P-(aminomethyl)phosphonimidates.