R. Fujita et al., Novel synthesis of tetrahydro-2(1H)-quinolones using Diels-Alder reactionsof 1-arylsulfonyl-2(1H)-pyridones having an electron-withdrawing group, TETRAHEDRON, 57(42), 2001, pp. 8841-8850
A novel synthetic methodology of preparing tetrahydro-2(1H)-quinolones by D
iels-Alder reactions between 2-methyl- and 2,3-dimethyl-1,3-butadienes and
1-arylsulfonyl-2(1H)-pyridones having an electron-withdrawing group at the
5-position is presented. Furthermore, the site-selectivity analyses based o
n MO calculations of the 5-substituted 2(1H)-pyridones acting as the dienop
hiles are described. (C) 2001 Elsevier Science Ltd. All rights reserved.