A. Baceiredo et al., The 'one-pot' syntheses of alpha,alpha '-diphosphino-substituted imines: aunique reaction of bulky bis(dialkylamino)chlorophosphines, NEW J CHEM, 25(4), 2001, pp. 591-596
The reaction between various bis(dialkylamino)chlorophosphines and N-isopro
pyl-substituted lithium amides afforded bis(alpha,alpha'-phosphino)imines i
n a 'one-pot' procedure. These compounds react with sulfur to generate intr
amolecularly hydrogen-bonded ylide derivatives. The molecular structure of
((Pr2N)-N-i)(2)PCH2C(=NBut)CH2P(NPri)(2) has been determined by X-ray cryst
allography.