title: Anionic [4+3] heteroannulation of 2-azidoacrylates: a modular synthesis of 2-benzazepin-1-ones.
abstract: 2-Azidoacrylates undergo [4+3] annulation with phthalides under anionic conditions at low temperatures to furnish 5-hydroxy-2-benzazepinones, the formation of which represents a new concept for the construction of azepines as well as a new reactivity of 2-azidoacrylates.
authors.affiliation: Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, India.
authors.forename: Bidyut Kumar
authors.initials: BK
authors.lastname: Dinda
authors.forename: Amit Kumar
authors.initials: AK
authors.lastname: Jana
authors.forename: Dipakranjan
authors.initials: D
authors.lastname: Mal
mesh_terms: D000179:Acrylates / Q000737:chemistry*; D001552:Benzazepines / Q000138:chemical synthesis* / Q000737:chemistry*; D060326:Chemistry Techniques, Synthetic / Q000379:methods*; D013237:Stereoisomerism; D013379:Substrate Specificity
chemical_list: D000179:Acrylates; D001552:Benzazepines