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Chemoselective reduction of β-butyltellanyl α,β-unsaturated carbonyl compounds to allylic alcohols
被引:18
|作者:
Dos Santos, AA
[1
]
Castelani, P
[1
]
Bassora, BK
[1
]
Fogo, JC
[1
]
Costa, CE
[1
]
Comasseto, JV
[1
]
机构:
[1] Inst Quim, BR-05508900 Sao Paulo, Brazil
来源:
基金:
巴西圣保罗研究基金会;
关键词:
vinylic tellurides;
chemoselective reduction;
enones and allylic alcohols;
D O I:
10.1016/j.tet.2005.06.090
中图分类号:
O62 [有机化学];
学科分类号:
070303 ;
081704 ;
摘要:
(Z)-beta-Butyltellanyl alpha, beta-unsaturated carbonyl compounds were stereoselectively produced by hydrotelluration of alkynones or by an addition/elimination sequence from enol tosylates. The beta-butyltellanyl-enones were chemoselectively reduced with NaBH4/MeOH, NaBH(4)center dot CeCl(3)center dot 7H(2)O/MeOH and DIBAL-H systems to the corresponding allylic alcohols with retention of the Z stereochemistry. (c) 2005 Elsevier Ltd. All rights reserved.
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页码:9173 / 9179
页数:7
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