Regioselective acylation of methyl 2-methyl-4H-thieno[3,2-b]pyrrole-5-carboxylate期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

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Regioselective acylation of methyl 2-methyl-4H-thieno[3,2-b]pyrrole-5-carboxylate

Authors:	Yarovenko V N Semenov S L Zavarzin I V Ignatenko A V Krayushkin M M

Institution:	(1) N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prosp., 119991 Moscow, Russian Federation

Abstract:	The influence of catalysts, acid chlorides, and solvents on the acylation of methyl 2-methyl-4H-thieno3,2-b]pyrrole-5-carboxylate was studied. The use of AlCl₃ allows the regioselective introduction of the acyl group into position 3 to be performed, whereas the acyl group is regioselectively introduced into position 6 of thienopyrrole when SnCl₄ is used.

Keywords:	thienopyrroles regioselective acylation ionic liquid
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