Rosin, Hadassa published the artcileAddition of trichloromethane phosphonyldichloride and its derivatives to vinylic monomers and other olefins, SDS of cas: 866-23-9, the publication is Journal of Organic Chemistry (1975), 40(22), 3298-9, database is CAplus.
Trichloromethanephosphonyl dichloride adds to vinylic monomers and other olefins under iron or copper chloride catalysis by a redox chain mechanism, giving RCH(Cl)CH2CCl2POCl2. Under forcing conditions, ethylene adds to its own monoadduct to give (ClCH2CH2)2CClPOCl2. Diphenyl trichloromethanephosphonate reacts in the same fashion, but with the dimethyl and diethyl ester the addition stops far short of completion.
Journal of Organic Chemistry published new progress about 866-23-9. 866-23-9 belongs to chlorides-buliding-blocks, auxiliary class Aliphatic Chain, name is Diethyltrichloromethylphosphonate, and the molecular formula is C5H10Cl3O3P, SDS of cas: 866-23-9.
Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics