Reactions of N-aryl- and N-methyl-amidines and -amides of alpha-amino acids with RPCl2 afford 4-aryl(methyl)imino and 4-oxo-1,3,2-diazaphospholanes. 4-Phenylimino-1,3,2-diazaphosphorinane was obtained in a similar way by the interaction of N(1),N(2)-diphenyl-beta-anilinoisobutyramidine with PhPCl2.
Reactions of N-aryl- and N-methyl-amidines and -amides of alpha-amino acids with RPCl2 afford 4-aryl(methyl)imino and 4-oxo-1,3,2-diazaphospholanes. 4-Phenylimino-1,3,2-diazaphosphorinane was obtained in a similar way by the interaction of N(1),N(2)-diphenyl-beta-anilinoisobutyramidine with PhPCl2.