Catalyst-free sulfenylation of indoles with sulfinic esters in ethanol was written by Yang, Xiuqin;Bao, Yishu;Dai, Zonghao;Zhou, Qingfa;Yang, Fulai. And the article was included in Green Chemistry in 2018.Electric Literature of C7H4ClF3O2S This article mentions the following:
A novel catalyst-free method for the synthesis of structurally diverse indole thioethers in moderate to excellent yields was developed. In this reaction, sulfinic esters serve as new sulfur electrophiles. In the experiment, the researchers used many compounds, for example, 3-(Trifluoromethyl)benzene-1-sulfonyl chloride (cas: 777-44-6Electric Literature of C7H4ClF3O2S).
3-(Trifluoromethyl)benzene-1-sulfonyl chloride (cas: 777-44-6) 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. Organochlorine compounds are lipophylic, meaning they are more soluble in fat than in water. This gives them a high tenancy to accumulate in the food chain (biomagnification).Electric Literature of C7H4ClF3O2S
Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics