- 作者: 周德清 ; 鄭建鴻
- 作者服務機構: 清華大學化學系
- 中文摘要: Alkyl formates in the presence of water were rapidly decomposed to H/sub 2/, CO/sub 2/ and the corresponding alcohols using Ru/sub 3/(CO)/sub 12/ and KOAc as catalyst. Based on the hydrogen gas produced, a turnover rate as fast as 8446/h for ethyl formate at 140.degree.C was observed. The catalyst system was also active for the decomposition of other alkyl formates. The rate of decomposition increased both with increasing amount of KOAc and with decreasing number of carbon atom in the alkyl group of the formate. In addition to Ru/sub 3/(CO)/sub 12/, several other transition metal complexes RuCl/sub 3/, RuCl/sub 2/(PPh/sub 3/)/sub 3/, Os/sub 3/(CO)/sub 12/, H/sub 2/Os/sub 3/(CO)/sub 10/, RhCl/sub 3/, and RhCl(PPh/sub 3/)/sub 3/, were active in the catalytic decomposition of alkyl formates, although their activities varied greatly. The Ru/sub 3/(CO)/sub 12/-KOAc system also catalyzed the reduction of nitrobenzene by HCOOEt-H/sub 2/O to aniline in EtOH and to a mixture of N- phenylformamide and N-methyl-N-phenylformamide in HCOOEt. Under conditions the same as for the hydrogenation of nitrobenzene, ethylene styrene and cyclohexenone were reduced to the corresponding alkanes, whereas 1-hexene and 1-octene were isomerized to the corresponding 2-alkene products.
- 英文摘要: --
- 中文關鍵字: Water-Gas Shift Reaction; Alkyl Formate; Ruthenium Carbonyl; Decomposition; Hydrogenation
- 英文關鍵字: 水氣移動反應;甲酸酯;羰基釕;分解;氫化作用(加氫作用)