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Preparation process of hydridecarbonyltris (triphenylphosphine) rhodium (I)
Preparation process of hydridecarbonyltris (triphenylphosphine) rhodium (I)
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机译:氢化羰基三(三苯基膦)铑(I)的制备方法
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摘要
The present invention relates to a process for preparing hydridocarbonyltris(triphenylphosphine)rhodium(I), RhH(CO)(PPh3)3, also referred to hereinafter as “Rh-hydrido.” An alcoholic suspension of triphenylphosphine is stirred with an Rh(III) chloride precursor at elevated temperature. The Rh(III) chloride precursor used may be rhodium(III) chloride hydrate RhCl3*xH2O or rhodium(III) chloride solution H3[RhCl6]*(H2O)n. After cooling, alcoholic alkali metal hydroxide solution is added, and the mixture is stirred for a few hours. Finally, sparging is effected with CO gas and the Rh-hydrido formed is removed. Rh-hydrido can be prepared by this process on the industrial scale with high yields and at very good quality.
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