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

被引：41
|
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
收藏
页码：6013 / 6016
页数：4
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