Y. Koseki et T. Nagasaka, SYNTHESIS OF LENNOXAMINE VIA THE INTRAMOLECULAR CYCLIZATION OF ALKYNYLAMIDE, Chemical and Pharmaceutical Bulletin, 43(9), 1995, pp. 1604-1606
This paper presents the formal synthesis of lennoxamine (1), the key s
tep [4 into 10 via 9] of which is a novel palladium-catalyzed coupling
reaction followed by intramolecular cyclization of alkynylamide.