www.cheminform.wiley-vch.de

Pyridine derivativesR 0380 A Significant Substituent Effect on the Regioselectivity in Addition of Alkynes to

3-Substituted Pyridines. — The regioselectivity of the reaction strongly depends on the electronic effects of the substituents in the pyridine substrates. Aromatization of the products is possible in the presence of p-chloranil [cf. (IX)]. — (YAMADA*, S.; TOSHIMITSU, A.; TAKAHASHI, Y.; Tetrahedron 65 (2009) 11, 2329-2333; Dep. Chem., Fac. Sci., Ochanomizu Univ., Bunkyo, Tokyo 112, Japan; Eng.) — Y. Steudel

30- 150

ChemInform 2009, 40, issue 30 © 2009 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim