Tetrahedron Letters p. 2825 - 2826 (1980)
Update date:2022-08-29
Topics:
Nishio, Takehiko
Katahira, Katsuhiro
Omote, Yoshimori
2,4-Diphenylquinolines (3) were quantitatively prepared by heating of 3-aryl-4,6-diphenyl-2-oxo-1,3-diazabicyclo<2,2,0>hex-5-enes (2), which were obtained by photochemical electrocyclization of 1-aryl-4,6-diphenyl-2(1H)-pyrimidin-2-ones (1), in benzene at reflux temperature.
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