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Volume 5, Issue 3 (Suppl)
Mod Chem Appl, an open access journal
ISSN: 2329-6798
Global Chemistry 2017
September 04-06, 2017
September 04-06, 2017 | London, UK
5
th
Global Chemistry Congress
Mod Chem Appl 2017, 5:3(Suppl)
DOI: 10.4172/2329-6798-C1-006
NIR-emitting quinone-fused coumarin dyes: aqueous mediated, catalyst free synthesis and their
optical properties
Sharad R Patil, Amol S Choudhary
and
Nagaiyan Sekar
Institute of Chemical Technology, Mumbai, India
W
ater mediated organic synthesis is a fascinating approach in chemistry. We have attempted catalyst free synthesis of
thermally stable near infra-red (NIR) emitting quinone fused coumarins with a benzothiazole/benzimidazole acceptor
in aqueous medium. The synthesis was attempted using naturally occurring 2-hydroxy-1, 4-naphthoquinone (Lawsone).
It is an efficient and environmentally friendly approach for the diversity oriented synthesis of 5, 6-quinone fused 2-pyrone
containing compounds. It is a highly productive one pot synthetic method at room temperature that avails commercially
accessible materials. In addition, this method has a very short reaction time and milder reaction conditions with an easy
separation process. The composition of catalyst free and room temperature condition ensure a green approach towards the
excellent practice of the synthetic method. These reactions offer functional NIR emitting fused coumarin compounds extended
emission to 810 nm. Structural, spectroscopic and morphological characterization of the material confirms the purity, integrity
and future potential materials for high technological applications. Eventually this method gives structurally interesting
compounds having optical and pharmacological significance.
sharad.omd.patil@gmail.com