Silica‐Impregnated Polyphosphoric Acid Catalyzed an Eco‐Friendly Rapid Synthesis of Functionalized Tetrahydroquinolines and Quinazolin‐4‐ones in Water-Reference-Cited by-同舟云学术

Silica‐Impregnated Polyphosphoric Acid Catalyzed an Eco‐Friendly Rapid Synthesis of Functionalized Tetrahydroquinolines and Quinazolin‐4‐ones in Water

Published:2018-03-22 Issue:11 Volume:3 Page:3318-3323
ISSN:2365-6549
Container-title:ChemistrySelect
language:en
Short-container-title:ChemistrySelect

Author:

Ansari Mohd. Imran¹²,Hussain Mohd. Kamil¹³,Hajela K.¹^ORCID

Affiliation:

1. Medicinal and Process Chemistry Division CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension Sitapur Road Uttar Pradesh Lucknow-226031 India

2. Department of Pharmaceutical Sciences University of Maryland School of Pharmacy, PHN706 20 N. Pine Street Baltimore MD-21201 USA

3. Department of Chemistry Government Raza Post graduate College Rampur 244901 India

Abstract

AbstractA metal‐free, mild, eco‐friendly and efficient method has been developed for the synthesis of functionalized tetrahydroquinolines, quinazolin‐4(1H)‐ones and quinazolin‐4(3H)‐ones using metal‐free and economically viable heterogeneous catalyst PPA‐SiO2 in water preferentially forming cis‐isomer. Both electron withdrawing and electron donating groups were found to be well tolerated and isolated products were obtained in good yields. Cis‐isomer was predominant in case of electron donating substrate in water.

Publisher

Wiley

Reference59 articles.

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