Potassium bromide catalyzed N S bond formation via oxidative dehydrogenation
摘要:
N-Substituted benzo[d]isothiazol-3(2H)-ones are a family of compounds with extremely important application. Recently, we have developed a new green pathway to synthesize these compounds via potassium bromide-catalyzed intramolecular oxidative dehydrogenative cyclization. This reaction has high functional group tolerance and affords excellent yield even in gram scale. (C) 2017 Elsevier Ltd. All rights reserved.
Double 1,4-addition of (thio)salicylamides/thiosalicylic acids with propiolate derivatives: a direct, general synthesis of diverse heterocyclic scaffolds
ring-closure procedure to prepare a range of diverse heterocycles has been developed. In this transformation, a variety of substituted (thio)salicylamides and thiosalicylicacids occured double 1, 4-additions reaction with propiolate derivatives in the presence of inorganic base (K3PO4), as a result, benzothiazinones, benzoxazinones and benzoxathiinones were prepared in good to excellent yields respectively
作者:MAZZA, M.、PAVANETTO, F.、MONTANARI, L.、MODENA, T.
DOI:——
日期:——
Gialdi et al., Farmaco, Edizione Scientifica, 1959, vol. 14, p. 216,232
作者:Gialdi et al.
DOI:——
日期:——
Potassium bromide catalyzed N S bond formation via oxidative dehydrogenation
作者:Tian-Qun Yu、Yong-Sheng Hou、Yi Jiang、Wen-Xuan Xu、Tao Shi、Xia Wu、Jin-Chao Zhang、Dian He、Zhen Wang
DOI:10.1016/j.tetlet.2017.03.065
日期:2017.5
N-Substituted benzo[d]isothiazol-3(2H)-ones are a family of compounds with extremely important application. Recently, we have developed a new green pathway to synthesize these compounds via potassium bromide-catalyzed intramolecular oxidative dehydrogenative cyclization. This reaction has high functional group tolerance and affords excellent yield even in gram scale. (C) 2017 Elsevier Ltd. All rights reserved.