Palladium on pumice:: new catalysts for the stereoselective semihydrogenation of alkynes to (Z)-alkenes

被引：28

作者：

Gruttadauria, M

Liotta, LF

Noto, R

Deganello, G

机构：

[1] Dipartimento Chim Organ E Paterno, I-90128 Palermo, Italy

[2] CNR, ICTPN, I-90146 Palermo, Italy

[3] Dipartimento Chim Inorgan, I-90128 Palermo, Italy

来源：

TETRAHEDRON LETTERS | 2001年 / 42卷 / 10期

关键词：

alkenes; alkynes; heterogenous catalysis; hydrogenation; palladium;

D O I：

10.1016/S0040-4039(01)00065-X

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

High selectivities (93-99%) and excellent stereoselectivities (>99%) in the semihydrogenation of C-C triple bonds were achieved using palladium on pumice with a metal loading of 0.5, 1.5 or 3.0% wt as catalyst. The reactions were carried out in ethanol or tetrahydrofuran with only 2.5% of ethylenediamine allowing a self-terminating semihydrogenation independently on the C-C triple bond. (C) 2001 Elsevier Science Ltd. All rights reserved.

引用

页码：2015 / 2017

页数：3

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