A. Couture et al., DRAMATICALLY DIFFERENT PHOTOCHEMICAL BEHAVIOR OF 1-AROYL-2-METHYLENE PIPERIDINE AND PYRROLIDINE DERIVATIVES - AN EXPEDITIOUS SYNTHESIS OF RUSPOLINONE, Tetrahedron letters, 37(43), 1996, pp. 7749-7752
Upon irradiation in neutral solvent, the diversely substituted 1-aroyl
-2-methylenepiperidines 6a-f give rise to photocyclized products 4a-f
while their pyrrolidine congeners 7a,c,d afford enaminoketones 18a,c,d
products of photo-Fries rearrangement. Copyright (C) 1996 Published b
y Elsevier Science Ltd