Supported gold nanoparticles catalyzed cis-selective semihydrogenation of alkynes using ammonium formate as the reductant

被引：45

作者：

Liang, Shengzong ^{[1
]}

Hammond, Gerald B. ^{[1
]}

Xu, Bo ^{[2
]}

机构：

[1] Univ Louisville, Dept Chem, Louisville, KY 40292 USA

[2] Donghua Univ, Coll Chem Chem Engn & Biotechnol, 2999 North Renmin Lu, Shanghai 201620, Peoples R China

来源：

CHEMICAL COMMUNICATIONS | 2016年 / 52卷 / 35期

基金：

美国国家科学基金会;

关键词：

PALLADIUM; HYDROGENATION; ACTIVATION; FLUORINE; DIFLUOROMETHYLATION; SEMIREDUCTION; ACETYLENE; MIXTURES; LACTONE; REAGENT;

D O I：

10.1039/c6cc01318j

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

TiO2 supported gold nanoparticles with low loading (0.5 mol%) are able to semihydrogenate non -fluorinated and gem-difluorinated alkynes to cis-alkenes with high selectivity, using cost-effective and easy-to-handle ammonium formate as the reductant. No over-reduction was observed. The good recyclability of Au/TiO2 allows for "green" semireduction of alkynes. A difluorinated pyran and ce,p-unsaturated 8-lactone were easily prepared from the obtained gem-difluoro alkene building blocks.

引用

页码：6013 / 6016

页数：4

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