Journal of the Chemical Society. Chemical communications p. 537 - 538 (1980)
Update date:2022-08-11
Topics:
Fujii, Harue
Shiba, Kazuhiro
Kaneko, Chikara
Irradiation of 4-methoxy-2-pyridone (1) in acetone in the presence of electron-rich alkenes afforded the 3-azabicyclo<4.2.0>oct-4-en-2-ones (2a-c) as the major products, whereas photolyses in the presence of electron-deficient alkenes led to the 2-azabicyclo<4.2.0>oct-4-en-3-ones (4a,b) as the major products; base treatment of the former adducts gave rise to the novel 1,2-dihydrocyclobuta
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