Synthesis of 3-[p-(pyrazolyl)]phenylsydnones was written by Havanur, Shambhuling B.;Badami, Bharati V.;Puranik, Gurubasav S.. And the article was included in Journal of Heterocyclic Chemistry in 1980.Category: chlorides-buliding-blocks This article mentions the following:
Condensation of p-RC6H4NH2 (R = 1-pyrazolyl, 3,5-dimethyl-1-pyrazolyl, 3,4,5-trimethyl-1-pyrazolyl) with R1ClCHCO2Me (R1 = H, Me, Ph) gave 70-5% p-RC6H4NHCHR1CO2H which on treatment with NaNO2 gave 75-80% p-RC6H4N(NO)CHR1CO2H. Cyclizing the last with Ac2O gave 60-76% title compounds I. In the experiment, the researchers used many compounds, for example, Methyl 2-chloro-2-phenylacetate (cas: 7476-66-6Category: chlorides-buliding-blocks).
Methyl 2-chloro-2-phenylacetate (cas: 7476-66-6) belongs to organic chlorides. Organic chlorides can cause corrosion in pipelines, valves and condensers, and cause catalyst poisoning. The hydrocarbon processing industry (HPI) and others are affected by damage caused by these substances. 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.Category: chlorides-buliding-blocks
Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics