Journal of Organometallic Chemistry p. 307 - 314 (1980)
Update date:2022-08-04
Topics:
Kellner, K.
Tzschach, A.
Nagy-Magos, A.
Marko, L.
α-Aminoacids, their esters and sodium salts may be transformed by a modified Mannich-reaction into N-phosphinomethyl or N,N-bis(phosphinomethyl) derivatives.The sodium or triethylammonium salts of the chiral bisphosphines L-(-)-N,N-bis(diphenylphosphinomethyl)-alanine and -valine may be used as ligands to form enantioslective hydrogenation catalysts with rhodium complexes.The highest optical yield achieved was 29percent.
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