Asymmetric Reactions Catalyzed by Chiral Metal Complexes. L. Synthesis of atropisomeric biphenylbisphosphine, 6,6'-bis(dicyclohexylphosphino)-3,3'-dimethoxy-2,2',4,4'-tetramethyl-1,1'-biphenyl and its use in rhodium(I)-catalyzed asymmetric hydrogenation

Autor: Kazuo Achiwa, Toshiaki Morimoto, Masanao Murata, Naoko Yamamoto, Kiyoshi Yoshikawa
Rok vydání: 1991
Předmět:
Zdroj: Chemical and Pharmaceutical Bulletin. 39:2767-2769
ISSN: 1347-5223
0009-2363
Popis: An optically pure atropisomeric biphenylbisphosphine, Cy-BIMOP, has been prepared, and its rhodium(I) complex showed higher catalytic activity and better enantioselectivity with the reverse configuration than BIMOP, p-MeO-BIMOP, and BINAP in the asymmetric hydrogentions of (Z)-α-acetamidoxinnamic acid, itaconic acid, and its derivative.
Databáze: OpenAIRE