Zirconium Triflate Catalyzed Direct Coupling Reaction of Lactams with Heterocyclic Arenes under Atmospheric Oxygen.

Abstract

Oxygen. -The first dehydrogenative coupling reactions between lactams (II) and heterocyclic arenes furnishing almost exclusively lactams arylated at the carbon atoms adjacent to the nitrogen atom are described. -(TSUCHIMOTO*, T.; OZAWA, Y.; NEGORO, R.; SHIRAKAWA*, E.; KAWAKAMI, Y.; Angew. Chem., Int. Ed. 43 (2004) 32, 4231-4233; Grad. Sch. Mater. Sci., Japan Adv. Inst. Sci. Technol., Ishikawa, Kanazawa 923-12, Japan; Eng.) -Koehler 49-054