| 摘要 |
1,191,516. Cis-1,4-hexadienes. MONTECATINI EDISON S.p.A. 14 Nov., 1967 [17 Nov., 1966], No. 51715/67. Heading C5E. Cis-1,4-hexadienes are prepared by codimerizing ethylene with a conjugated diene (e.g. butadiene or isoprene) in the presence of an ether solvent (e.g. diethylether or THF) and a catalyst obtained by reacting an iron halide with a Grignard reagent of formula RMgX, where R is a C 1-12 alkyl or aryl group and X is Cl, Br or I. |
