| Autor: |
Hayashi, Tamio, Han, Jin Wook, Takeda, Akira, Tang, Takeda, Nohmi, Kenji, Mukaide, Kotaro, Tsuji, Hayato, Uozumi, Yasuhiro |
| Zdroj: |
Advanced Synthesis & Catalysis; March 2001, Vol. 343 Issue: 3 p279-283, 5p |
| Abstrakt: |
Several MOP ligands 5 containing aryl groups at 2' position of (R)-2-(diphenylphosphino)-1,1'-binaphthyl skeleton were prepared and used for palladium-catalyzed asymmetric hydrosilylation of cyclic 1,3-dienes 6 with trichlorosilane. Highest enantioselectivity was observed in the reaction of 1,3-cyclopentadiene (6a) catalyzed by a palladium complex (0.25 mol %) coordinated with (R)-2-(diphenylphosphino)-2'-(3,5-dimethyl-4-methoxyphenyl)-1,1'-binaphthyl (5f), which gave (S)-3-(trichlorosilyl)cyclopentene of 90% ee. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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