| 摘要 |
HOE 91/H 031 Process for the preparation of tertiary phosphines A process is specified for the preparation of tertiary phosphines of the formula R'PR2 or R2P-¢CH2!3-PR2 in which R is an aryl, pyridyl or arylsulfonic acid group and R' is an aryl, pyridyl, arylsulfonic acid or n-butyl group, which comprises reacting phosphines of the formula HnPR"3-n or H2P-¢CH2!3-PH2 in which R" is hydrogen or an n-butyl, aryl or pyridyl group and n is 1 or 2 with a halogen compound of the formula X-R, in which R has the abovementioned meaning and X is fluorine, chlorine or bromine, in the presence of powdered potassium hydroxide and dimethyl sulfoxide and/or dimethoxyethane at temperatures between 0 and 100.degree.C, at least 1 mol of potassium hydroxide being used per mole of halogen compound.
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