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Donor-acceptor pyran-2-ones: Absorption and fluorescence spectra of 4-substituted 2H-1-benzo/napthopyran-2-ones

✍ Scribed by Rajesh S. Kenny; Uday C. Mashelkar

Publisher
Journal of Heterocyclic Chemistry
Year
2006
Tongue
English
Weight
70 KB
Volume
43
Category
Article
ISSN
0022-152X

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✦ Synopsis

The absorption spectra and emission spectra of 4-substituted 2H-1-benzo/napthopyran-2-ones 3a-l have been determined in THF and DMSO. The substituent at the 4-position of the 2H-benzo/napthopyran-2-one, establishes a compact conjugation pathway in which the pyran-2-one nucleus can act as an acceptor ring.

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