He, Weixuan published the artcileα-Elimination of diethyl dichlorolithiomethanephosphonate, Recommanded Product: Diethyltrichloromethylphosphonate, the publication is Huaxue Xuebao (1987), 45(3), 291-4, database is CAplus.
The α-elimination of (EtO)2P(O)C–Cl2 Li+ generates dichlorocarbene, in which the leaving group is diethyl phosphite anion not Cl–. A discussion on the reaction is given.
Huaxue Xuebao 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, Recommanded Product: Diethyltrichloromethylphosphonate.
Referemce:
https://en.wikipedia.org/wiki/Chloride,
Chlorides – an overview | ScienceDirect Topics