620-38-2Relevant academic research and scientific papers
Diphenyl Diselenide-Catalyzed Synthesis of Triaryl Phosphites and Triaryl Phosphates from White Phosphorus
Zhang, Yue,Cai, Ziman,Chi, Yangyang,Zeng, Xiangzhe,Chen, Shuanghui,Liu, Yan,Tang, Guo,Zhao, Yufen
supporting information, p. 5158 - 5163 (2021/07/20)
Industrially important triaryl phosphites, traditionally prepared from PCl3, have been synthesized by a diphenyl diselenide-catalyzed one-step procedure involving white phosphorus and phenols, which provides a halogen- and transition metal-free way to these compounds. Subsequent oxidation of triaryl phosphites produces triaryl phosphates and triaryl thiophosphates. Phosphorotrithioates are also prepared efficiently from aromatic thiols and aliphatic thiols.
A reaction distillation coupling preparation process of phosphorous acid ester compound
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Paragraph 0049; 0050, (2017/03/17)
The invention relates to a method for synthesizing phosphite ester compounds through esterification. Generally, phosphorus halide and alcohol or phenol are adopted for reaction. Taking monohydric alcohol as an example, the reaction equation is as follows: PCl3+3R-OH->P-(O-R)3+3HCl, wherein R is organic group, such as alkane, cycloparaffin, arene and the like. The equipment for the method comprises a reaction kettle, a tower, a circulating pump, a mixer, a heat exchanger and the like. The method has the beneficial effects that HCl generated by reaction is removed timely through the action of reactive rectification coupling, so that the reaction speed is greatly improved, ammonia hydrochloride or amine hydrochloride is prevented from generating due to addition of acid-binding agent, and the production cost of the existing technology is greatly lowered.
