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Donor‐acceptor pyran‐2‐ones: Absorption and fluorescence spectra of 4‐substituted 2 H ‐1‐benzo/napthopyran‐2‐ones
Author(s) -
Kenny Rajesh S.,
Mashelkar Uday C.
Publication year - 2006
Publication title -
journal of heterocyclic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.321
H-Index - 59
eISSN - 1943-5193
pISSN - 0022-152X
DOI - 10.1002/jhet.5570430230
Subject(s) - chemistry , substituent , pyran , fluorescence , ring (chemistry) , acceptor , spectral line , photochemistry , absorption (acoustics) , absorption spectroscopy , stereochemistry , organic chemistry , physics , quantum mechanics , acoustics , condensed matter physics , astronomy
The absorption spectra and emission spectra of 4‐substituted 2 H ‐1‐benzo/napthopyran‐2‐ones 3a‐1 have been determined in THF and DMSO. The substituent at the 4‐position of the 2 H ‐benzo/napthopyran‐2‐one, establishes a compact conjugation pathway in which the pyran‐2‐one nucleus can act as an acceptor ring.