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Phosphorus, Sulfur, and Silicon and the Related Elements Volume 190, 2015 - Issue 4
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Original Articles

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

Soora Harinath JayaprakashDepartment of Chemistry, Sri Venkateswara University, Tirupati, 517 502, India
,
Kunda Uma Maheswara RaoDepartment of Chemistry, Sri Venkateswara University, Tirupati, 517 502, India
,
Balam Satheesh KrishnaDepartment of Chemistry, Sri Venkateswara University, Tirupati, 517 502, India
,
Sthanikam Siva PrasadDepartment of Chemistry, Sri Venkateswara University, Tirupati, 517 502, India
,
Chereddy Syama SundarDepartment of Chemistry, Sri Venkateswara University, Tirupati, 517 502, India
&
Cirandur Suresh ReddyDepartment of Chemistry, Sri Venkateswara University, Tirupati, 517 502, IndiaCorrespondence[email protected]
Pages 449-460 | Received 12 Feb 2014, Accepted 22 Jul 2014, Published online: 01 May 2015
 
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GRAPHICAL ABSTRACT

Abstract

A simple, efficient, and one-pot protocol for the synthesis of some new pyrenyl-α-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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