| 摘要 |
In a process for the manufacture of b , g -unsaturated carboxylic acid esters, three components consisting of (1) an allylic compound which has a structure of <FORM:1045050/C2/1> (where Hal. is halogen) or <FORM:1045050/C2/2> (2) carbon monoxide and (3) an alcohol, or consisting of (1) an allylic compound having the structure <FORM:1045050/C2/3> (where X is a halogen atom or an -OY group, where Y is a hydrogen atom, an alkyl radical, an aryl radical or an organic acid residue), (2) carbon monoxide and (3) a cyclic ether, are caused to react in the presence of a catalyst essentially consisting of a noble metal of Group VII-VIII in the Periodic Table, e.g. palladium, rhodium, rhenium or a compound comprising the noble metals, e.g. oxide, halide, nitrates or complex salt. Many examples are given including using allyl chloride, methallyl chloride, tetrahydrofuran, propylene oxide, bromocyclohexene, allyl ethyl ether, acetic ester of 3-pentene-2-ol, crotyl alcohol, 1-chloro-n-octene-2-chloride and carbon monoxide and alcohol in the presence of compounds of palladium, rhodium and rhenium. |
