Synthesis of functionalized benzopyrans by sequential [3+3]-cyclization-Williamson reactions of 1.3-bis(trimethylsilyloxy)-7-chlorohepta-1,3-dienes

被引：19

作者：

Nguyen, VH ^{[1
]}

Langer, P ^{[1
]}

机构：

[1] Ernst Moritz Arndt Univ Greifswald, Inst Chem & Biochem, D-17487 Greifswald, Germany

来源：

TETRAHEDRON LETTERS | 2005年 / 46卷 / 05期

关键词：

benzopyrans; cyclizations; ethers; lewis acids; silyl enol ethers;

D O I：

10.1016/j.tetlet.2004.12.009

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Functionalized benzopyrans were regioselectively prepared by [3+3]-cyclization of 1,3-bis(trimethylsilyloxy)-7-chloro-hepta-1,3-dienes with 3-silyloxy-2-eno-1-ones and Subsequent intramolecular Williamson reactions of the salicylates thus formed. (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：815 / 817

页数：3

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