Alkyl 2-Aryl-2-thioxoethanoates and -thioates: Preparation, Dimerization, and EPR Spectra of the Corresponding Radical Anions was written by Voss, Jurgen;Sawluk, Andrzej;Lange, Gisela;Adiwidjaja, Gunadi. And the article was included in Phosphorus, Sulfur and Silicon and the Related Elements in 2009.SDS of cas: 7476-66-6 This article mentions the following:
The title compounds were prepared by reaction of the corresponding α-halocarboxylic or α-halothiolocarboxylic esters with tetraethylammonium thiosulfate and subsequent treatment of the resulting Bunte salts with sodium hydroxide in a two-phase system. Under elimination of sulfite, the deep-blue colored thiones were generated. These labile compounds could not always be isolated from the solutions in a pure state. Instead, frequently the [2+2]-dimers (dialkyl 2,4-diaryl-1,3-dithietane-2,4-carboxylates) or other follow-up products were obtained. Nevertheless, the EPR spectra of the monomer radical anions could be recorded even if solutions of the dimers were reduced by internal electrolysis. Addnl. EPR spectra were observed in several cases, which the authors assign to the radical anions of dialkyl 2,3-diaryl-2-butene-1,4-dioate radical anions originating from electron induced sulfur extrusion of the corresponding 1,3-dithietanes. Radical trianions were observed when a 1,4-benzene-bis-α -thioxo ester or -thioxo-thiol ester was electroreduced at a more neg. electrode potential. In the experiment, the researchers used many compounds, for example, Methyl 2-chloro-2-phenylacetate (cas: 7476-66-6SDS of cas: 7476-66-6).
Methyl 2-chloro-2-phenylacetate (cas: 7476-66-6) belongs to organic chlorides. An organic chloride is an organic compound containing at least one covalently bonded atom of chlorine. Their wide structural variety and divergent chemical properties lead to a broad range of names and applications. Alkyl chlorides are versatile building blocks in organic chemistry. While alkyl bromides and iodides are more reactive, alkyl chlorides tend to be less expensive and more readily available.SDS of cas: 7476-66-6
Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics