Syntheses of mono-, di- and triethynylazulenes

被引：54

作者：

Fabian, KHH ^{[1
]}

Elwahy, AHM ^{[1
]}

Hafner, K ^{[1
]}

机构：

[1] Tech Univ Darmstadt, Inst Organ Chem, D-64287 Darmstadt, Germany

来源：

TETRAHEDRON LETTERS | 2000年 / 41卷 / 16期

关键词：

ethynylazulenes; Pd-cross-coupling reaction; Corey-Fuchs reaction;

D O I：

10.1016/S0040-4039(00)00308-7

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Simple and productive routes to mono-, di- and triethynylazulenes are described. Azulenes ethynylated in the five-membered ring can be prepared on a multigram scale by Pd-catalyzed cross-coupling of iodo- or bromoazulenes with trimethylsilyl-acetylene and subsequent desilylation. 5,7-Diethynylazulene was synthesized by dibromomethylenation of the corresponding dialdehyde and subsequent dehydrobromination. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：2855 / 2858

页数：4

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