Transformations starting from biotechnologically available materials, part 2: First example of a direct conversion of spirooxiranes into enamines
摘要:
An unpredecent formation of enamines in the reaction of 5-aryl-1-oxa-5-azaspiro[2.4]heptane-4,6-diones with morpholine and piperidine is reported. The transformations proceed via corresponding beta-aminoalcohols which were detected by C-13-NMR.