In:
Journal of Heterocyclic Chemistry, Wiley, Vol. 45, No. 1 ( 2008-01), p. 265-277
Abstract:
magnified image New 2‐pyrone derivatives, dialkyl 3‐cyano‐6‐phenyl‐2‐oxo‐2 H ‐pyran‐4‐ylmalonates and alkyl 3‐cyano‐6‐phenyl‐2‐oxo‐2 H ‐pyran‐4‐ylacetates, which were easily prepared by the reaction of 6‐aryl‐4‐methyl‐sulfanyl‐2‐oxo‐2 H ‐pyran‐3‐carbonitriles with active methylene compounds in the presence of potassium carbonate, show fluorescence emission radiation. The light‐emitting region of dimethyl 3‐cyano‐6‐(4‐ N,N ‐dimethylamino)styryl‐2‐oxo‐2 H ‐pyran‐4‐ylmalonate ( 7h ) was 620 nm in dichloromethane, making this compound a typical red fluorescent compound. Methyl 8‐hydroxy‐6‐methyl‐1‐oxo‐3‐phenyl‐1 H ‐pyrano‐[3,4‐ c ]pyridine‐5‐carboxylate deriv‐atives also showed fluorescence in the solid state. This is the first example of fluorescence in fused 2‐pyrone derivatives.
Type of Medium:
Online Resource
ISSN:
0022-152X
,
1943-5193
DOI:
10.1002/jhet.5570450133
Language:
English
Publisher:
Wiley
Publication Date:
2008
detail.hit.zdb_id:
2042274-X
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