Halocycloalkenones as Diels–Alder Dienophiles. Applications to Generating Useful Structural Patterns
作者:Audrey G. Ross、Steven D. Townsend、Samuel J. Danishefsky
DOI:10.1021/jo302230m
日期:2013.1.4
are demonstrated to function as potent dienophiles in inter- and intramolecular Diels–Alder cycloadditions. We have found 2-brominated cycloalkenone dienophiles to be both highly endo selective and significantly more reactive than their nonhalogenated parent compounds. A method for the facile conversion of brominated cyclobutanone DA adducts to synthetically useful cyclopropyl functional handles is described