Organic photochemistry. XXV. Solution phase photochemistry of 2-methylenebenznorbornene. Apparent diversion of the di-. pi.-methane reaction

F Scully, J Grutzner, H Morrison

Index: Scully,F. et al. Journal of the American Chemical Society, 1973 , vol. 95, p. 5100 - 5102

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Citation Number: 9

Abstract

VI11 I1 major photoproduct is derived from analysis of its spectra. The mass spectrum shows a molecular ion at mje 156 and the infrared spectrum (neat) indicates the presence of a monosubstituted olefin (10.10 and 10.93, u) as well as a methylene group (11.35 p). The latter absorption is comparable to that (11.51 p) reported for 1-methyleneindan. l 3 The nmr spectrum is essentially first order and shows: a four-proton multiplet at 6 7.05-7.65 ( ...