Studies on fused-ring mesoionic thiazolo[3,2-a]thiazolo[5,4-d]pyrimidine system was written by Talukdar, P. B.;Sengupta, S. K.;Datta, A. K.. And the article was included in Indian Journal of Chemistry in 1983.Product Details of 7476-66-6 This article mentions the following:
Cyclodehydration of 5-carboxymethylmercaptothiazolo[5,4-d]pyrimidine-7(6H)-ones I (R = SMe, NHPh; R1 = Me, Ph; R2 = Ph) with Ac2O readily affords new fused-ring mesoionic systems II. I (R2 = H) fail to give pure products under similar treatment, but the thiazolium perchlorate, III were acylated to give pure mesoionic ketones II (R = SMe, R1 = Me, R2 = Ac, COC6H4NO2-4). II furnish alc. adducts. In the experiment, the researchers used many compounds, for example, Methyl 2-chloro-2-phenylacetate (cas: 7476-66-6Product Details of 7476-66-6).
Methyl 2-chloro-2-phenylacetate (cas: 7476-66-6) belongs to organic chlorides. Organochlorines stimulate the central nervous system and cause convulsions, tremor, nausea, and mental confusion. Examples are dichlorodiphenyltrichloroethane (DDT), chlordane, lindane, endosulfan, and dieldrin. 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.Product Details of 7476-66-6
Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics