SYNTHESIS OF OXAZOLO- AND IMIDAZOLO-PHANES

Irradiation of (3, 5)[9]isoxazolophanes (I) afforded the corresponding azabicyclo [1O.1.O]tridec-13(1)-en-11-ones (II) from which the [9]oxazolo- (III) and the [9]imidazolo-phanes (V) were obtained.