Catalyst free one pot three components synthesis of 2-iminothiazoles from nitroepoxides and thiourea

Autor:	Elham Badali, Azim Ziyaei Halimehjani, Azizollah Habibi
Jazyk:	angličtina
Rok vydání:	2023
Předmět:	Medicine Science
Zdroj:	Scientific Reports, Vol 13, Iss 1, Pp 1-8 (2023)
Druh dokumentu:	article
ISSN:	2045-2322
DOI:	10.1038/s41598-023-30243-5
Popis:	Abstract Nitroepoxides were introduced as efficient substrates for the one-pot three-component synthesis of 2-iminothiazoles under catalyst-free conditions. Reaction of amines, isothiocyanates, and nitroepoxides in THF at 10–15 °C afforded corresponding 2-iminothiazoles in high to excellent yields. The reaction proceeds via the in situ formation of thiourea from an amine and an isothiocyanate, followed by nitroepoxide ring opening with the sulfur of thiourea, cyclization reaction, and dehydration cascade. The structures of products were confirmed by IR, NMR, HRMS analyses and X-ray crystallography.
Databáze:	Directory of Open Access Journals
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