Issue 7, 2013
From the journal:

New Journal of Chemistry

Copper(ii) ionic liquid catalyzed cyclization–aromatization of hydrazones with dimethyl acetylenedicarboxylate: a green synthesis of fully substituted pyrazoles†

Shirin Safaei,a   Iraj Mohammadpoor-Baltork,*a   Ahmad Reza Khosropour,*a   Majid Moghadam,a   Shahram Tangestaninejada  and  Valiollah Mirkhania  

* Corresponding authors

a Catalysis Division, Department of Chemistry, University of Isfahan, Isfahan 81746-73441, Iran
E-mail: imbaltork@sci.ui.ac.ir, khosropour@chem.ui.ac.ir
Fax: +98 (311)6689732
Tel: +98 (311)7932705

Abstract

The Lewis acid room temperature ionic liquid, [n-Bu4P][CuBr3], was found to be an efficient and reusable catalyst for three component synthesis of fully substituted pyrazoles from the reaction of aldehydes, arylhydrazines and dimethyl acetylenedicarboxylate (DMAD). This catalytic system is simple and chemoselective with high yields.

Graphical abstract: Copper(ii) ionic liquid catalyzed cyclization–aromatization of hydrazones with dimethyl acetylenedicarboxylate: a green synthesis of fully substituted pyrazoles

About
Cited by
Related
Download options Please wait...

Supplementary files

Article information

DOI
https://doi.org/10.1039/C3NJ40756J
Article type
Paper
Submitted
27 Aug 2012
Accepted
01 Apr 2013
First published
03 Apr 2013

New J. Chem., 2013,37, 2037-2042

Permissions

Request permissions

Copper(II) ionic liquid catalyzed cyclization–aromatization of hydrazones with dimethyl acetylenedicarboxylate: a green synthesis of fully substituted pyrazoles

S. Safaei, I. Mohammadpoor-Baltork, A. R. Khosropour, M. Moghadam, S. Tangestaninejad and V. Mirkhani, New J. Chem., 2013, 37, 2037 DOI: 10.1039/C3NJ40756J

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements