1,3-dipolar cycloaddition reactions of imines of gamma- and delta-dialdehydes: Applications to the synthesis of novel polyfunctional pyrrolizidines and indolizidines
R. Grigg et al., 1,3-dipolar cycloaddition reactions of imines of gamma- and delta-dialdehydes: Applications to the synthesis of novel polyfunctional pyrrolizidines and indolizidines, SYNTHESIS-S, (3), 1999, pp. 441-446
Combinations of imine --> azomethine ylide --> cycloaddition cascades with
intramolecular reductive aminations mediated by sodium cyanoborohydride gen
erates novel polyfunctional pyrrolizidines and indolizidines. The azomethin
e ylides are generated from imines of monoacetals of gamma- and delta-diald
ehydes via metal ion catalysis at ambient temperature.