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Communication | Regular issue | Vol 55, No. 5, 2001, pp.823-826
Published online, 1st January, 1970
DOI: 10.3987/COM-01-9159
Effect of Copper(II) Triflate on Intramolecular Diels-Alder Reaction of Oxazole-Olefins

Masashi Ohba* and Rie Izuta

*Faculty of Pharmaceutical Scicences, Kanazawa University, 13-1 Takara-machi, Kanazawa 920-0934, Japan

Abstract

Intramolecular Diels-Alder reaction of the oxazole-olefins (8a) and (11a) was effectively promoted by addition of a catalytic amount of copper(II) triflate to afford the cyclopenta[c]pyridines (9a) and (12a), respectively.