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 |
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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 |
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