Sodium sulphide promoted synthesis of fused quinoline at room temperature

Autor: Vishal Prasad Sharma, Ashish Kumar Tewari, Radhey M. Singh, Rashmi Singh, Priyanka Sonker, Priyanka Yadav
Rok vydání: 2021
Předmět:
Zdroj: Organic & Biomolecular Chemistry. 19:8108-8112
ISSN: 1477-0539
1477-0520
DOI: 10.1039/d1ob01085a
Popis: A novel, simple and eco-friendly strategy for the synthesis of thiopyrano[4,3-b]quinolin-1-ones and pyrrolo[3,4-b]quinolin-1-ones from 2-alkynylquinoline-3-carbonitriles and sodium sulphide (Na2S·9H2O) under catalyst-free conditions at room temperature has been described. In this reaction, a readily available inorganic salt (Na2S·9H2O) serves as the sulphur source and leads to the generation of diverse functionalized thiopyrano[4,3-b]quinolin-1-ones and pyrrolo[3,4-b]quinolin-1-ones in moderate to excellent yields through sulfuration, annulation, and aerial oxidation.
Databáze: OpenAIRE