Palladium and rhodium-catalyzed intramolecular [2+2+2] cycloisomerizations in molten tetrabutylammonium bromide

被引：24

作者：

Gonzalez, Ivan

Bouquillon, Sandrine

Roglans, Anna

Muzart, Jacques

机构：

[1] Univ Reims, CNRS, UMR 6519, F-51687 Reims 2, France

[2] Univ Girona, Dept Chem, E-17071 Girona, Spain

来源：

TETRAHEDRON LETTERS | 2007年 / 48卷 / 37期

关键词：

D O I：

10.1016/j.tetlet.2007.07.073

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

The cycloisomerization reaction of triacetylenic macrocycles 1 was carried out in molten n-BU4NBr using either the Wilkinson's catalyst RhCl(PPh3)(3), or PdCl2 leading to good yields of the corresponding cycloisomerized compounds. It was possible to recycle the catalytic system. When PdCl2/TBAB was used, palladium natioparticles were identified by means of transmission electron microscopy (TEM) and energy dispersive X-ray spectroscopy (EDX). (c) 2007 Elsevier Ltd. All rights reserved.

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页码：6425 / 6428

页数：4

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