title: One-pot synthesis of novel photochromic oxazine compounds.
abstract: A one-pot domino synthesis of photochromic 2,2-diarylphenanthro-(9,10)-[2H]-[1,4]-oxazines in excellent yield is described starting with acrylic acid derivatives. The reaction mechanism was studied by ReactIR and UV-vis. The cascade sequence of the reactions involves five transformations, namely, acyl azide formation, Curtius rearrangement, arsonium ylide formation, aza-Wittig, and final cyclization to the title compounds.
authors.affiliation: Key Laboratory for Special Functional Materials of the Ministry of Education, Henan University, Kaifeng, 475004, China. zhaow@henu.edu.cn
authors.forename: Weili
authors.initials: W
authors.lastname: Zhao
authors.forename: Erick M
authors.initials: EM
authors.lastname: Carreira
mesh_terms: D003116:Color; D003500:Cyclization; D015394:Molecular Structure; D010078:Oxazines / Q000138:chemical synthesis*; D055668:Photochemical Processes; D013053:Spectrophotometry
chemical_list: D010078:Oxazines