title: Synthesis of phenanthridones using Diels-Alder reactions of 4-substituted 2(1H)-quinolones acting as dienophiles.
abstract: Diels-Alder reactions of 2(1H)-quinolones having an electron-withdrawing group at the 4-position with 1,3-butadiene derivatives were carried out to give the phenanthridones richly functionalized under the conditions of atmospheric and high pressure. Furthermore, the reactivities of 4-substituted 2(1H)-quinolones acting as a dienophile were examined using MO calculation.
authors: Tohoku Pharmaceutical University, Sendai, Japan. refujita@tohoku-pharm.ac.jp
authors: R
authors: R
authors: Fujita
authors: K
authors: K
authors: Watanabe
authors: T
authors: T
authors: Yoshisuji
authors: H
authors: H
authors: Matsuzaki
authors: Y
authors: Y
authors: Harigaya
authors: H
authors: H
authors: Hongo
mesh_terms: D000399:Air Pressure; D055598:Chemical Phenomena; D002627:Chemistry, Physical; D008958:Models, Molecular; D008968:Molecular Conformation; D010617:Phenanthridines / Q000138:chemical synthesis*; D011804:Quinolines / Q000737:chemistry*
chemical_list: D010617:Phenanthridines; D011804:Quinolines