Palladium-catalyzed dehydrogenation of benzylic alcohols in molten ammonium salts, a recyclable system

被引：31

作者：

Ganchegui, B ^{[1
]}

Bouquillon, S ^{[1
]}

Hénin, F ^{[1
]}

Muzart, J ^{[1
]}

机构：

[1] Univ Reims, CNRS, Unite Mixte Rech React Select & Applicat, F-51687 Reims 2, France

来源：

TETRAHEDRON LETTERS | 2002年 / 43卷 / 37期

关键词：

catalysis; palladium; alcohols; dehydrogenation; molten ammonium salts; recycling;

D O I：

10.1016/S0040-4039(02)01405-3

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Heating secondary benzylic alcohols in molten tetra-n-butyl ammonium bromide with catalytic amounts of palladium chloride under a gentle flow of argon produced corresponding ketones in good yields. Neither cooxidant nor additive were required, with the added advantage of catalyst and ammonium salt recycling. The dehydrogenation of primary benzylic alcohols was less selective. Such a reaction was ineffective from allylic and saturated alcohols. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：6641 / 6644

页数：4

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