共 8 条
Asymmetric diene cyclization/hydrosilylation/oxidation employing 1-tert-butyl-3,3-dimethyl-1,1-diphenyldisiloxane
被引:16
作者:
Pei, T
[1
]
Widenhoefer, RA
[1
]
机构:
[1] Duke Univ, PM Gross Chem Lab, Durham, NC 27708 USA
基金:
美国国家卫生研究院;
关键词:
D O I:
10.1016/S0040-4039(00)01321-6
中图分类号:
O62 [有机化学];
学科分类号:
070303 ;
081704 ;
摘要:
A 1:1 mixture of (N-N)Pd(Me)Cl [N-N = (R)-(+)-4-isopropyl-2-(2-pyridinyl)-2-oxazoline] (1) and NaBAr4 [Ar = 3,5-C6H3(CF3)(2)] catalyzed the asymmetric cyclization/hydrosilylation of functionalized 1,6-dienes with 1-tert-butyl-3,3-dimethyl-1,1-diphenyldisiloxane at -20 degrees C to form silylated cyclopentanes in good yield with up to 95% ee. These silylated carbocycles underwent oxidative cleavage of the C-Si bond with H2O2 at room temperature to form the corresponding alcohols. (C) 2000 Elsevier Science Ltd. All rights reserved.
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页码:7597 / 7600
页数:4
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