In the next few decades, the world population will flourish. As the population grows rapidly and people all over the world use more and more resources, all industries must consider their environmental impact. 4090-55-5, name is 2-Chloro-5,5-dimethyl-1,3,2-dioxaphosphorinane 2-oxide belongs to chlorides-buliding-blocks compound, it is a common compound, a new synthetic route is introduced below. category: chlorides-buliding-blocks
Taking 0.01 muM structure 1 and 0.04 muM structure 3 by adding three-mouth flask, nitrogen protection, magnetic stirring dissolved in 200 ml dichloromethane in, ice water bath. In the slowly dripping triethylamine in three mouth bottle, during the dropping will be accompanied by white mist generating, heating up to 40 C, this temperature is kept continuous stirring 8 hours. The reaction liquid washing three times with saturated sodium chloride solution, adding anhydrous magnesium sulfate standing drying, after clarifying filtration, vacuum hangs steams to remove the solvent, to obtain orange crystal that aromatic module including cup and cyclic phosphate ester flame retardants, yield 85.39%.
The synthetic route of 4090-55-5 has been constantly updated, and we look forward to future research findings.
Reference:
Patent; Chinese People’s Armed Police Force Academy; Lu Lingang; Wang Huiya; Qian Xiaodong; Yang Shousheng; Jin Jing; (8 pag.)CN107778328; (2018); A;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics