Regio- and Diastereoselective 1,3-Diploar Cycloaddition of Imidazoline 3-Oxides to Styrene
摘要:
Delta(3)-Imidazoline 3-oxides (1) underwent regio- and diastereoselective cycloaddition with styrene to give perhydroimidazo[1,5-b]isoxazoles (3). Thermally induced retro cycloaddition of compounds (3) was demonstrated.
New Methods for the Synthesis of Imidazoline-N-Oxides
摘要:
DELTA3-Imidazoline-3-oxides were prepared by the reaction of corresponding aromatic Schiff bases with syn-2-bromoacetophenone oxime. 5,6-Dihydro-4H-1,2,5-oxadiazines were isolated as byproduct in some instances.