Photochemistry of Dimethyl Quinoline-3,4-dicarboxylate N-Oxides
The photochemical rearrangement of 2-methyl and 2-aryl substituted dimethyl quinoline-3,4-dicarboxylate N-oxides has been studied.In methanol or methanol/chloroform solutions the major product was the 1-methyl- or 1-aryl-quinolin-2-(1H)-one in which the substituent at C2 has migrated to nitrogen.The yield of these products was increased in a dark reaction subsequent to the irradiation.In acetonitrile solutions the initial major product was the corresponding 3,1-benzoxazepine; subsequent reactions yielded inter alia indole derivatives.
Irvine, Robert W.,Summers, John C.,Taylor, Walter C.
p. 1419 - 1430
(2007/10/02)
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