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PAA-SIO2 Catalyzed Synthesis, Uv Absorption, and Fluorescence Emission Studies of Diethyl (Aryl/Hetero Aryl Amino)(Pyren-1-Yl)Methylphosphonates

Soora Harinath Jayaprakash,Kunda Uma Maheswara Rao,Balam Satheesh Krishna,Sthanikam Siva Prasad,Chereddy Syama Sundar,Cirandur Suresh Reddy

PHOSPHORUS SULFUR AND SILICON AND THE RELATED ELEMENTS（2015）

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Abstract
A simple, efficient, and one-pot protocol for the synthesis of some new pyrenyl-alpha-aminophosphonates (4a-l) by Kabachnik-Fields reaction using silica supported polyacrylic acid (PAA-SiO2) as a new reusable heterogeneous catalyst under neat conditions has been developed. All the synthesized compounds were investigated for the exhibition of their photophysical properties in the UV-Visible region. The absorption and emission maxima and specifically blue and red shifts were identified with respect to the substituents present.
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effect of substituents,alpha-Aminophosphonates,PAA-SiO2,fluorescence,UV absorption
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