作者: Karuppiah Malathi , Veerappan Jeyachandran , Karumpan Kalaiselvan , Raju Ranjith Kumar , None
DOI: 10.1080/00397911.2014.965329
关键词: Stereoselectivity 、 Cycloaddition 、 Benzothiazine 、 Chemistry 、 1,3-Dipolar cycloaddition 、 Azomethine ylide 、 Organic chemistry 、 Pyrrolidine
摘要: AbstractThe 1,3-dipolar cycloaddition of azomethine ylides generated in situ from the reaction acenaphthylene-1,2-dione or isatins and α-amino acids to (E)-methyl/ethyl 2-(3-oxo-3,4-dihydro-2H-benzo[b][1,4]thiazin-2-ylidene)acetate led stereoselective formation novel dispiro 1,4-benzothiazine hybrid heterocycles good yields.