共 50 条
Enantioselective synthesis of 2-allyl and 2-(3-trimethyl-silylpropargyl)-2-hydroxycyclohexanone using osmium-catalyzed asymmetric dihydroxylation
被引:8
|作者:
Devaux, JM
[1
]
Goré, J
[1
]
Vatèle, JM
[1
]
机构:
[1] Univ Lyon 1, CNRS, Lab Chim Organ 1, CPE, F-69622 Villeurbanne, France
关键词:
D O I:
10.1016/S0957-4166(98)00144-X
中图分类号:
O61 [无机化学];
学科分类号:
070301 ;
081704 ;
摘要:
The catalytic asymmetric dihydroxylation of (1-cyclohexenyl) or (1-cyclopentenyl) acetonitrile 5 and 15 with AD-mix-beta occurred with good enantiofacial selectivity (87 to 94.7% ee after recrystallization) giving (R,R)-diols in agreement with the mnemonic device. The 6-membered ring diol nitrile was easily transformed, via standard functional group manipulations, to 2-allyl and 2-(3-trimethylsilylprop-2-ynyl)-2-hydroxycyclohexanone in about 35% overall yield. (C) 1998 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:1619 / 1626
页数:8
相关论文