He, Rong-De’s team published research in Journal of the American Chemical Society in 2019 | CAS: 5781-53-3

Methyl 2-chloro-2-oxoacetate(cas: 5781-53-3) belongs to acyl chlorides. In the laboratory, acyl chlorides are generally prepared by treating carboxylic acids with thionyl chloride (SOCl2). The reaction is catalyzed by dimethylformamide and other additives.Computed Properties of C3H3ClO3

The author of 《Reductive Coupling between C-N and C-O Electrophiles》 were He, Rong-De; Li, Chun-Ling; Pan, Qiu-Quan; Guo, Peng; Liu, Xue-Yuan; Shu, Xing-Zhong. And the article was published in Journal of the American Chemical Society in 2019. Computed Properties of C3H3ClO3 The author mentioned the following in the article:

The cross-electrophile reaction is a promising strategy for C-C bond formation. Recent studies have focused mainly on reactions with organic halides. Here we report a coupling reaction between C-N and C-O electrophiles that demonstrates the possibility of constructing a C-C bond via C-N and C-O cleavage. Several reactions between benzyl/aryl ammonium salts and vinyl/aryl C-O electrophiles have been studied. Preliminary mechanistic studies revealed that the benzyl ammoniums were activated through a radical mechanism. The results came from multiple reactions, including the reaction of Methyl 2-chloro-2-oxoacetate(cas: 5781-53-3Computed Properties of C3H3ClO3)

Methyl 2-chloro-2-oxoacetate(cas: 5781-53-3) belongs to acyl chlorides. In the laboratory, acyl chlorides are generally prepared by treating carboxylic acids with thionyl chloride (SOCl2). The reaction is catalyzed by dimethylformamide and other additives.Computed Properties of C3H3ClO3

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics