TETRAHEDRON, cilt.53, sa.34, ss.11529-11540, 1997 (SCI-Expanded)
The Stetter procedure has been adapted to produce simple 2-furyl- and 2-thienylpyridines and their related oligomers, which have been characterised by C-13 NMR spectroscopy. sigma values for the 2-furyl and 2-thienyl rings have been deduced from the pK(a) values of the conjugate acids of the 2-furyl- and 2-thienylpyridines. (C) 1997 Elsevier Science Ltd.