Semihydrogenation of alkynes in the presence of Ni(0) catalyst using ammonia-borane and sodium borohydride as hydrogen sources

被引：54
作者：
Barrios-Francisco, Rigoberto [1 ]
Garcia, Juventino J. [1 ]
机构：
[1] Univ Nacl Autonoma Mexico, Fac Quim, Mexico City 04510, DF, Mexico
来源：
APPLIED CATALYSIS A-GENERAL | 2010年 / 385卷 / 1-2期
关键词：
Alkyne semihydrogenation; Nickel complexes; Ammonia-borane; Sodium borohydride; Hydrogen sources; CARBON-CARBON BONDS; SELECTIVE REDUCTION; CHEMICAL EVIDENCE; DEHYDROGENATION; HYDROLYSIS; COMPLEXES; CLEAVAGE; BORON; DIAMMONIATE; TEMPERATURE;
D O I：
10.1016/j.apcata.2010.06.052
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The selective semihydrogenation of terminal and internal alkynes was achieved using complexes of the type [(P-P)Ni(eta(2)-C,C-alkyne)] (P-P = chelating diphospine ligands), which behave as the active catalysts and were generated in situ. Boron-hydride derivatives such as ammonia-borane (AB) or sodium boron hydride (SBH) were used as hydrogen sources. In the case of internal alkynes, the stereoselective formation of cis- or trans-alkenes was achieved in high yields and under mild reaction conditions. (c) 2010 Elsevier B.V. All rights reserved.
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页码：108 / 113
页数：6
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