Copper-Catalysed Cascade Synthesis of Imidazolidine-Benzothiazole and Imid­azolidine-Tetrazole Hybrid Heterocycles from Bis-thioureas by a Desulfurisation Strategy

Autor: Santosh K. Sahoo, Bhisma K. Patel, Majji Ganesh, Nilufa Khatun
Rok vydání: 2015
Předmět:
Zdroj: European Journal of Organic Chemistry. 2015:7534-7543
ISSN: 1434-193X
Popis: The in situ generated bis-thioureas obtained by treating aryl/alkyl isothiocyanates with aliphatic 1,2-diamines, upon treatment with CuI or CuII salts, depending on their quantity and the reaction conditions, furnished either imidazolidinecarbothioamide (ImCAT) or imidazolidine–benzothiazole (ImBT) hybrid molecules. The same reactions in the presence of sodium azide yielded imidazolidine–tetrazoles (ImTets). The products were obtained in good yields at room temperature with all these processes taking place in a single pot. This is a perfect illustration of Cu salts serving as both desulfurising as well as C–H activating agents at ambient temperature.
Databáze: OpenAIRE
Nepřihlášeným uživatelům se plný text nezobrazuje