Literature DB >> 21185215

A novel and environment-friendly method for preparing dihydropyrano[2,3-c]pyrazoles in water under ultrasound irradiation.

Yi Zou1, Hui Wu, Yu Hu, Hai Liu, Xuan Zhao, Honglou Ji, Daqing Shi.   

Abstract

A green and convenient approach to the synthesis of dihydropyrano[2,3-c]pyrazoles via four-component reaction of aromatic aldehydes, hydrazine, ethyl acetoacetate and malononitrile in water under ultrasound irradiation is described. This method provides several advantages such as environmental friendliness, shorter reaction time, excellent yields, and simple workup procedure.
Copyright © 2010 Elsevier B.V. All rights reserved.

Entities:  

Year:  2010        PMID： 21185215     DOI： 10.1016/j.ultsonch.2010.11.012

Source DB:  PubMed          Journal:  Ultrason Sonochem        ISSN： 1350-4177            Impact factor:   7.491


  5 in total

Review 1.  Sonochemical Protocols for Heterocyclic Synthesis: A Representative Review.

Authors:  Meena Devi; Rahul Singh; Jayant Sindhu; Ashwani Kumar; Sohan Lal; Ramesh Kumar; Khalid Hussain; Megha Sachdeva; Devender Singh; Parvin Kumar
Journal:  Top Curr Chem (Cham)       Date:  2022-02-12

2.  Magnetically recoverable Fe3O4 nanocatalyst for the synthesis of biodynamically significant 1H-pyrazolo[1,2-b]phthalazine-5,10-diones derivatives and its DFT study.

Authors:  Mohd Danish Ansari; Hozeyfa Sagir; Vijay B Yadav; Neetu Yadav; Ankit Verma; Sonam Shakya; Manjit Singh; I R Siddiqui
Journal:  Mol Divers       Date:  2022-10-07       Impact factor: 3.364

Review 3.  Diversity oriented syntheses of conventional heterocycles by smart multi component reactions (MCRs) of the last decade.

Authors:  Heiner Eckert
Journal:  Molecules       Date:  2012-01-20       Impact factor: 4.411

4.  Ultrasound-promoted one-pot, three-component synthesis of spiro[indoline-3,1'-pyrazolo[1,2-b]phthalazine] derivatives.

Authors:  Juxian Wang; Xiaoguang Bai; Changliang Xu; Yucheng Wang; Wei Lin; Yi Zou; Daqing Shi
Journal:  Molecules       Date:  2012-07-23       Impact factor: 4.411

Review 5.  Ultrasound for Drug Synthesis: A Green Approach.

Authors:  Micheline Draye; Gregory Chatel; Romain Duwald
Journal:  Pharmaceuticals (Basel)       Date:  2020-01-31
  5 in total

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