Photochemistry of 3ζ,5ζ-epoxycholestan-6-ones
Abstract
The photolysis of α-oxo-oxetanes appears to be controlled in part by stereoelectronic factors which require coplanarity of the α-cleaved oxetane bond with the singly or doubly occupied carbon p-orbital of the n,π* carbonyl group and the zwitterionic character of the initial bond cleaved species may be important.