One-pot synthesis of silyl-substituted dihydro-2H-pyran-2-ols from 3-phenyldimethylsilyl-1-diethylaminopropyne and epoxides

被引:3
作者
Schabbert, S [1 ]
Schaumann, E [1 ]
机构
[1] Tech Univ Clausthal, Inst Organ Chem, D-38678 Clausthal Zellerfeld, Germany
关键词
carbanions; ynamines; oxiranes; cyclization;
D O I
10.1016/S0040-4020(98)01118-1
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
The reaction of lithiated 3-phenyldimethylsilyl-1-diethylaminopropyne 2 with oxiranes 3 affords silyl-substituted dihydro-2H-pyran-2-ols 6 and / or 7. The intermediates alpha,beta-unsaturated 5-hydroxy aldehydes 5 can be isolated, but cyclize easily to the 6-membered oxacycles. (C) 1999 Elsevier Science Ltd. All rights reserved.
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页码:1271 / 1276
页数:6
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