Intramolecular cyclization of N-hydroxy-2-phenoxyacetamides and 3-phenoxypropanamides
作者:Viswanath Nagalingam、Reddymasu Sreenivasulu、Nagarajan Madhavarao、Ramachandran Dittakavi、Krishnamurthy Mannam
DOI:10.1007/s12039-020-01769-2
日期:2020.12
benzoxazin-3(4H)one and 1,5 benzoxazepinones by intramolecular cyclization of N-hydroxy 2-phenoxyacetamide and N-hydroxy -3 phenoxypropanamide using PPA and Lewis acid has been discussed. Graphical abstract Preparation of 2H-1,4- benzoxazin-3(4H)one and 1,5 benzoxazepinones by electrophilic aromatic substitution from N-hydroxy 2-phenoxyacetamide and N-hydroxy -3 phenoxypropanamide and their acetyl and benzoyl
摘要讨论了通过PPA和路易斯酸对N-羟基2-苯氧基乙酰胺和N-羟基-3苯氧基丙酰胺进行分子内环化反应制备2H-1,4-苯并恶嗪-3(4H)酮和1,5苯并x庚酮的新途径。 图形概要 使用PPA和路易斯酸,通过N-羟基2-苯氧基乙酰胺和N-羟基-3苯氧基丙酰胺及其乙酰基和苯甲酰基衍生物的亲电芳族取代反应制备2H-1,4-苯并恶嗪-3(4H)酮和1,5-苯并a嗪酮。