Vj. Ram et A. Goel, SYNTHESIS OF DIPYRIDINYLS AND TERPYRIDINYLS WITH PHENYL SPACERS THROUGH BASE-INDUCED RING TRANSFORMATION REACTIONS, Chemistry Letters, (10), 1997, pp. 1021-1022
A novel approach to the synthesis of dipyridinyls (3a,b, 5a,b, 6c,d) a
nd terpyridinyls (6a,b, 7a,b) with phenyl and 1,3-terphenyl spacers is
delineated by base induced ring transformation reactions of ridyl-3-c
arbomethoxy-4-methylthio-2H-pyran-2-ones.