Preparation of substituted 10-chloro- or 10-bromo-phenoxaphosphines, for synthesis of phenoxaphosphinic acid or complex ligand for catalyst, by reacting diphenyl ether, phosphorus trihalide and Lewis acid uses after-treatment with amine

摘要

In the preparation of substituted 10-chloro- or 10-bromo-phenoxaphosphines (I) by reacting substituted diphenyl ethers with a phosphorus trihalide in the presence of Lewis acid(s), the reaction mixture is after-treated with an amine.