Stereoselectivity control in Diels–Alder reactions of 4-thiosubstituted 5-alkoxyfuranones: synthesis and reactivity of enantiopure 4-sulfinyl and sulfonyl 5-(l-menthyloxy)furan-2(5H)-ones
Pyrrolo[2,1-<i>b</i>]thiazole Derivatives by Asymmetric 1,3-Dipolar Reactions of Thiazolium Azomethine Ylides to Activated Vinyl Sulfoxides
作者:José Luis García Ruano、Alberto Fraile、M. Rosario Martín、Gema González、Cristina Fajardo
DOI:10.1021/jo801705d
日期:2008.11.7
1,3-Dipolar reactions of thiazolium azomethine ylides to enantiopure cyclic and acyclic vinyl sulfoxides provide an efficient access to polyfunctionalized pyrrolo[2,1-b][1,3]thiazoles in a highly regio- and stereoselective manner. Regioselectivity can be inverted by modifying the position of the sulfinyl group at the double bond of the sulfinylfuranones. The sulfoxide is the main controller of the
Asymmetric 1,3-dipolar cycloadditions of diazoalkanes to (5S,SS)-5-[(1R)-menthyloxy]-4-phenylsulfinyl (and phenylsulfonyl)furan-2(5H)-ones
作者:José L. Garcı́a Ruano、Fernando Bercial、Gemma González、Ana M. Martı́n Castro、M.Rosario Martı́n
DOI:10.1016/s0957-4166(02)00541-4
日期:2002.9
Stereoselectivity control in Diels–Alder reactions of 4-thiosubstituted 5-alkoxyfuranones: synthesis and reactivity of enantiopure 4-sulfinyl and sulfonyl 5-(l-menthyloxy)furan-2(5H)-ones
作者:Josè L. Garcı́a Ruano、Fernando Bercial、Alberto Fraile、Ana M. Martı́n Castro、M.Rosario Martı́n