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Communication | Special issue | Vol 76, No. 1, 2008, pp.129-132
Published online, 21st December, 2007
DOI: 10.3987/COM-07-S(N)2
Photodimerization of a Pyrido[2,1-a]isoindol-6(4H)-one

Leo A. Paquette,* Robert D. Dura, and Judith C. Gallucci

*Evans Chemical Laboratories, The Ohio State University, Columbus, OH 43210, USA


When subjected to acetone-sensitized irradiation, the title compound undergoes near-quantitative self-coupling to give an uncommon [4+2] dimer, whose reaction with several oxidants demonstrated the enamide double bond of the photoproduct to be the more reactive.