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Communication | Regular issue | Vol 19, No. 2, 1982, pp.279-280
Published online, 1st January, 1970
DOI: 10.3987/R-1982-02-0279
Stilbene Photocyclization. Synthesis of Cepharanone B

Luis Castedo, Enrique Guitián, José M. Saá, and Rafael Suau

*Departamento de Química Orgánica , Facultad de Farmacia, Universidad de Santiago de Compostela, E-15706, Santiago de Compostela, Spain


The photocyclization of enamides of type 2 is investigated. Photochemical electrocyclization did not take place due to an ineffectiveness of overlapping of the hexatriene system. However, radical induced cyclization gave a satisfactory result.