El-Sadany, S K; Sharaf, S M; Darwish, A I, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1991, vol. 30, # 6, p. 567 - 573
作者:El-Sadany, S K、Sharaf, S M、Darwish, A I、Youssef, A A
DOI:——
日期:——
Access to 2‐Amino‐3‐Arylthiophenes by Base‐Catalyzed Redox Condensation Reaction Between Arylacetonitriles, Chalcones, and Elemental Sulfur
作者:Thi Thu Tram Nguyen、Van Anh Le、Pascal Retailleau、Thanh Binh Nguyen
DOI:10.1002/adsc.201901235
日期:2020.1.7
three‐component reaction of arylacetonitriles, chalcones and elemental sulfur. The first step consists of a DBU‐catalyzed formation of Michael adduct between arylacetonitriles and chalcones. The second step is a cascade of DABCO‐catalyzed sulfuration of the Michael adduct with elemental sulfur followed by an oxidative cyclization to afford thiophenes. Compared to the Gewald reactions and related transformations