| 摘要 |
1,167,289. 2-Methyl-2-pentene. ESSO RESEARCH & ENG. CO. 26 March, 1968 [18 April, 1967], No. 14447/68. Heading C5E. 2-Methyl-2-pentene is prepared by dimerizing propylene in the presence of a solvent and a catalyst mixture or complex comprising (a) an acetylacetonate of Ni, Co or Fe, (b) an alkyl aluminium halide of formula AlR n X 3-n, where R is C 1-6 alkyl, X is halogen and n is 1 or 2, and (c) a C 2-12 olefinic compound, preferably propylene itself or 1,5-cyclopentadiene. Typical solvents are heptane, toluene, chloroform, ethylene dibromide and chlorotoluene. |
