Preparation and use of C2-symmetric bis (phospholanes): production of. alpha.-amino acid derivatives via highly enantioselective hydrogenation reactions
…, JE Feaster, WA Nugent, RL Harlow
文献索引：Burk, Mark J.; Feaster, John E.; Nugent, William A.; Harlow, Richard L. Journal of the American Chemical Society, 1993 , vol. 115, # 22 p. 10125 - 10138
Abstract: A new class of chiral Cz-symmetric bis (phospho1ane) ligands has been prepared and used in rhodium-catalyzed asymmetric hydrogenation reactions. We describe a practical, one-pot procedure which utilizes enantiomerically pure 1, 4-diol cyclic sulfates 4 for the preparation of a homochiral series of 1, 2-bis (phospholano) ethanes 1 and 1, 2-bis- (phospho1ano) benzenes (DuPHOS) 2. Cationic rhodium complexes bearing these new ...
