Rs. Reddy et al., AN EFFICIENT APPROACH TO GAMMA-ALKYLIDENE GAMMA-BUTYROLACTONES - APPLICATION TO THE SYNTHESES OF PYRIDAZINONES AND DIAZOCINONES, Tetrahedron, 54(23), 1998, pp. 6553-6564
The efficient phototransformation of a variety of spirodiones 3 to gam
ma-alkylidene gamma-butyrolactones 4 and their application to the synt
heses of biologically useful pyridazinones 14 and diazocinones 15 are
described. (C) 1998 Elsevier Science Ltd. All rights reserved.