Photodimerisation of Amidopyrine [1,2] An Example of [2-f-2] Photocycloaddition of an Enamine-Like Structure
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چکیده
The photochemical behaviour of amidopyrine (1) (4-dimethylamino-1,5-dimethyl-2-phenyl-4-pyrazolin-3-one) in several polar solvents has been reported [3, 4]. A number of compounds were isolated as fragmentation or rearrangement products; however most of the reported products represent addition compounds due to interaction of the solvent with an a-lactam intermediate or one of the valence isomers of 1 [4],
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تاریخ انتشار 2012