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Mokle S.S.,Laboratory of Organic Synthesis | Khansole S.V.,Laboratory of Organic Synthesis | Patil R.B.,Yeshwant Mahavidyalaya | Vibhute Y.B.,Laboratory of Organic Synthesis
International Journal of Pharma and Bio Sciences | Year: 2010

New chalcones (3a-h) were synthesized from 2-chloro-8-methoxy-quinoline-3-carbaldehyde (2) and halohydroxysubstitued acetophenones (1a-h) via Claisen-Schmidt condensation. Further new flavones (4a-h) were synthesized by oxidative cyclisation of chalcones (3a-h) using microwave as well as by conventional method. The structures of synthetic compounds were established on the basis of analytical and spectral data. These compounds were screened for their antibacterial activity. Source


Zangade S.,Laboratory of Organic Synthesis | Shinde A.,Laboratory of Organic Synthesis | Sundge S.,Laboratory of Organic Synthesis | Vibhute Y.,Laboratory of Organic Synthesis
Analele Universitatii Bucuresti Chimie | Year: 2011

A simple, rapid and highly efficient synthesis of 1,5-benzothiazepines by condensation of 2'-hydroxychalcones and o-aminophenol using 2-methoxyethanol as an alternative and environmentally benign solvent under microwave irradiation. The clean reaction conditions, shorter reaction time and high yields and purity of product are notable advantages of method. © 2011 Analele UniversitǎŃii din Bucuresti. Source


Shetye A.,Laboratory of Organic Synthesis | Tamboli M.,Laboratory of Organic Synthesis | Mokle S.,Laboratory of Organic Synthesis | Zangade S.,Laboratory of Organic Synthesis
Der Pharma Chemica | Year: 2011

Halogenosubstituted vanillins were prepared by halogenations. Halogenosubstituted vanillins on Knoevenagel condensation with malonic acid to form halogenosubstituted cinnamic acids by using conventional method as well as microwave irradiation technique. All halogenosubstituted cinnamic acids were screened for antibacterial activity. All newly synthesized halogenosubstituted cinnamic acids showed antibacterial activity to a remarkable extent. Source


Zangade S.B.,Laboratory of Organic Synthesis | Mokle S.S.,Laboratory of Organic Synthesis | Shinde A.T.,Laboratory of Organic Synthesis | Vibhute Y.B.,Laboratory of Organic Synthesis
Green Chemistry Letters and Reviews | Year: 2013

A simple, rapid, efficient, and environmentally benign procedure for synthesis of 2-pyrazoline derivatives has been achieved by reacting 2′-hydroxychalcones with hydrazine hydrate under solvent-free grinding technique. The short reaction time, cleaner reaction, easy workup, higher yields, and mild reaction conditions make this protocol practical and economically attractive in comparison with the classical reaction. © 2013 Copyright Sainath B. Zangade, Shyam S. Mokle, Avinash T. Shinde and Yeshwant B. Vibhute. Source


Vibhute A.,Laboratory of Organic Synthesis | Mokle S.,Laboratory of Organic Synthesis | Karamunge K.,Laboratory of Organic Synthesis | Gurav V.,Laboratory of Organic Synthesis | Vibhute Y.,Laboratory of Organic Synthesis
Chinese Chemical Letters | Year: 2010

Green, mild and efficient iodination of hydroxylated aromatic aldehydes and ketones using iodine and iodic acid in the solid-state by grinding under solvent-free conditions at room temperature. This method provides several advantages such as environmentally friendly, short reaction times, high yields, non-hazardous and simple work-up procedure. © 2010 Yeshwant Vibhute. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved. Source

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