P. Mangeney et al., RADICAL CYCLIZATIONS OF 1,4-DIHYDROPYRIDINES - SYNTHESIS OF CHIRAL FUSED NITROGEN-HETEROCYCLES - SYNTHESIS OF LUPININE AND EPILUPININE, Tetrahedron, 54(35), 1998, pp. 10349-10362
Radical cyclizations of doalkanoyl)-3-formyl-4-methyl-1,4-dihydropyrid
ines are described and discussed. A regio and diasteroselective reacti
on is obtained under ultrasonic conditions. An application to the synt
hesis of lupinine and epilupinine is shown. (C) 1998 Elsevier Science
Ltd. All rights reserved.