Eco-Friendly Syntheses of 2-Substituted Benzoxazoles and 2-Substituted Benzothiazoles from 2-Aminophenols, 2-Aminothiophenols and DMF Derivatives in the Presence of Imidazolium Chloride

Autor: Qingqiang Tian, Wen Luo, Zongjie Gan, Dan Li, Zeshu Dai, Huajun Wang, Xuetong Wang, Jianyong Yuan
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: Molecules, Vol 24, Iss 1, p 174 (2019)
Druh dokumentu: article
ISSN: 1420-3049
DOI: 10.3390/molecules24010174
Popis: A simple, economical and metal-free approach to the synthesis of 2-substituted benzoxazoles and 2-substituted benzothiazoles from 2-aminophenols, 2-aminothiophenols and DMF derivatives, only using imidazolium chloride (50% mmol) as promoter without any other additive, was reported. Various 2-substituted benzoxazoles and 2-substituted benzothiazoles were thus prepared in moderate to excellent yields.
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