Synthesis and Study of Isomeric Benzo[1,4]oxazines and Benzothiazolines by NMR Spectroscopy and X-Ray Crystallography
Rojas Lima, Susana
1999
Victor Florencio Santes Hernández, Susana Rojas-Lima, Rosa Luisa Santillan Baca and José Norberto Farfán García. Synthesis and Study of Isomeric Benzo[1,4]oxazines and benzothiazolines by NMR spectroscopy and X-ray crystallography Monatshefte für Chemie, 130, 1481-1486 (1999). Preprinted
Abstract
Reaction of 2-aminophenol and 2-aminothiophenol with 1-phenyl-1,2-propanedioneyields a mixture of both possible isomeric benzo[1,4]oxazines and benzothiazolines which werecharacterized by NMR spectroscopy. In addition, the structures for 3-methyl-2-phenyl-2Hbenzo[1,4]-oxazin-2-ol and 1-(2-phenyl-2,3-dihydro-benzothiazol-2-yl)-ethanone were establishedby X-ray diffraction analysis.
Artículos relacionados
Diastereoselective Synthesis of Spiro-?-lactams via Staudinger Reactio
Preparation of N-aryl-substituted spiro-?-lactams via Staudinger cycloaddition
X-ray crystallographic study of neutral boron chelates with ?-diketones and tropolone
Furocoumarins of three species of the genus Dorstenia
Diastereomeric C-glycosyloxanthrones from picramnia antidesma
Stereoselective addition of allylmagnesium chloride to the CN bond of [4.3.0] boron heterobicycles