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Communication | Special issue | Vol 8, No. 1, 1977, pp.115-118
Published online, 1st January, 1970
DOI: 10.3987/S(S)-1977-01-0115
Synthesis of Tetrahydro-6H-benzo[4,5]pyrano[2,3-c]pyridin-6-one. A Novel Ring System

Friedhelm Lotz, Udo Kraatz, and Friedhelm Korte*

*Lehrstuhl für Makromolekulare Stoffe, Institut für Chemie, Technische Universität München, Lichtenbergstrasse 4, D-85747 Garching, Germany

Abstract

1-Bromo-(8),9-(di)methyl-6a,10a-trans-6a,7,10,10a-tetrahydro-6H-benzo[4,5]pyrano[2,3-c]pyridin-6-one is synthesized by means of a Diels-Alder reaction, starting from trans-4-(3,5-dibromo)pyridilacrylic acid, in a one-step procedure.