| 摘要 |
A process for hydrodimerizing butadiene to form 1,7-octadiene in high selectivity comprises hydrodimerizing butadiene in the presence of a palladium catalyst, a tertiary phosphine, formic acid, a solvent and in the absence of a base, characterized in that the solvent is a dialkyl sulphoxide and/or a dialkyl formamide and the tertiary phosphine is a phosphine of formula: R1R2R3P wherein R1 is a benzyl group or a branched alkyl, alkenyl, aralkyl or cycloalkyl group having from 3 to 10 carbon atoms with branching occurring at a carbon atom no more than two carbon atoms from the phosphorous atom and R2 and R3 are R1 or independently are alkyl, alkenyl or aryl having from 1 to 10 carbon atoms. |
