title: Chemical generation of o-quinone monoimines for the rapid construction of 1,4-benzoxazine derivatives.
abstract: Highly reactive o-benzoquinone monoimines were chemically generated and successfully trapped with electron-rich olefins that led to the synthesis of hitherto unknown 1,4-benzoxazine derivatives. This unprecedented transformation was achieved by the oxidation of o-aminophenols bearing appropriate functionality on the arene residue with less expensive hypervalent iodine reagent in the presence of vinylic ethers or thioethers.
authors.affiliation: Department of Chemistry, Indian Institute of Technology, Roorkee-247 667, Uttarakhand, India.
authors.forename: Naganjaneyulu
authors.initials: N
authors.lastname: Bodipati
authors.forename: Rama Krishna
authors.initials: RK
authors.lastname: Peddinti
mesh_terms: D000627:Aminophenols / Q000737:chemistry; D016227:Benzoquinones / Q000138:chemical synthesis / Q000737:chemistry*; D007097:Imines / Q000138:chemical synthesis / Q000737:chemistry*; D010084:Oxidation-Reduction
chemical_list: D000627:Aminophenols; D016227:Benzoquinones; D007097:Imines; C027667:2-aminophenol; C004532:quinone