The homologation of alicyclic systems has been effected by a variety of cati0ni. c methods3; most notable are the Demjanov* a, c and Tiff eneau-Demjano~~~~~ reactions, the acid- catalyzed dehydration of alcohol^,^ reactions with diazo compound~,~, 5 the solvolysis of sulfonates,'j and the anodic oxidation of P-hydroxy acids.'In all these systems, one point of similarity is immediately obvious; all involve the generation of carbonium ion character on ...