Tetrahedron Letters, Volume 55, Issue 10, 5 March 2014, Pages 1715-1719
Hardesh K Maurya, Atul Gupta
Medicinal Chemistry Department, Central Institute of Medicinal and Aromatic Plants, P.O. CIMAP, Kukrail Road, Lucknow-226015, India
http://dx.doi.org/10.1016/j.tetlet.2014.01.095
Hardesh K Maurya, Atul Gupta
Medicinal Chemistry Department, Central Institute of Medicinal and Aromatic Plants, P.O. CIMAP, Kukrail Road, Lucknow-226015, India
http://dx.doi.org/10.1016/j.tetlet.2014.01.095
Abstract
An efficient approach to the synthesis of highly congested di, penta and hexacyclic pyrazoles as well as imidazole fragment containing novel heterocyclic molecule has been developed through a carbanion induced transformation of suitably functionalized 2H-pyran-2-ones, benzo[h]chromene and thiochromeno[4,3-b]pyrans. Due to the presence of fluorescence, we report their prime application metal sensor as off/on switching in ferric ions.
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