Intramolecular [2+ 2] photocycloadditions of 1-(. omega.-alkenyl)-2-pyridones possessing an ester group on the olefinic carbon chain

K Somekawa, H Okuhira, M Sendayama…

Index: Somekawa, Kenichi; Okuhira, Hiroyuki; Sendayama, Masayuki; Suishu, Takaaki; Shimo, Tetsuro Journal of Organic Chemistry, 1992 , vol. 57, # 21 p. 5708 - 5712

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Citation Number: 27

Abstract

Figure 2. Eetimated energies and coefficients of 2-pyridone and methyl acrylate. across the C3-C4 double bond in 2-pyridone, photoirradiation of 1, 3-bis (w-alkenyl)-2-pyridone 6 was carried out in order to clarify the reactivity of the two kinds of double bonds of the 2-pyridone ring. The reactivity of the c& double bond was found to be higher than that of the C,-C, double bond from the fact that 6 gave 18. The reactivity of the C3-C4 position is inferred to ...