THE PHOTOCHEMICAL BEHAVIOR OF CYCLIC IMINO ETHERS. THE N–O BOND FISSION AND SYN-ANTI ISOMERIZATION IN THE C=N–O CHROMOPHORE

Abstract

Abstract Six-, seven-, and eight-membered cyclic imino ethers (3, 4, and 5) were synthesized and their photoreactions were investigated to compare with those of isoxazoline derivatives. The derivatives of 3 upon irradiation afforded ring-cleaved products, whereas 4 and 5 were found to be inert to irradiation.