Photochemistry of substituted propiophenones: An interesting α-and aryl substituents effect on their photobehaviour I,II

Add time:09/10/2019    Source:sciencedirect.com

Photochemistry of different α-substituted and phenyl-substituted propiophenones in methanol is investigated with a view to delineate the substituent effect with a special reference tu their rearrangement to α-arylpropanoic acids, an important class of nonsteroidal antiinflammatory agents. The results thus obtained bringsforth an important element of their reactivityprofile i.e. the α-chloro-substituent in combination with nuclear alkyl substituents (para>meta) favours 1,2-arylmigration leading to the synthetically useful reaction for α-arylpro panoic acids.

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