Issue 1, 2004
From the journal:

Chemical Communications

Facile palladium-catalysed synthesis of 1-aryl-1H-indazoles from 2-bromobenzaldehydes and arylhydrazines

Chan Sik Cho,*a   Dong Kwon Lim,b   Nam Ho Heo,b   Tae-Jeong Kimb  and  Sang Chul Shim*b  

* Corresponding authors

a Research Institute of Industrial Technology, Kyungpook National University, Daegu 702-701, Korea

b Department of Industrial Chemistry, College of Engineering, Kyungpook National University, Daegu 702-701, Korea
E-mail: scshim@knu.ac.kr

Abstract

2-Bromobenzaldehydes react with arylhydrazines in toluene at 100 °C in the presence of a catalytic amount of a palladium catalyst and phosphorus chelating ligands such as 1,1′-bis(diphenylphosphino)ferrocene and 1,3-bis(diphenylphosphino)propane along with NaO-t-Bu to afford 1-aryl-1H-indazoles in good yields.

Graphical abstract: Facile palladium-catalysed synthesis of 1-aryl-1H-indazoles from 2-bromobenzaldehydes and arylhydrazines

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Article information

DOI
https://doi.org/10.1039/B312154M
Article type
Communication
Submitted
30 Sep 2003
Accepted
04 Nov 2003
First published
18 Nov 2003

Chem. Commun., 2004, 104-105

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Facile palladium-catalysed synthesis of 1-aryl-1H-indazoles from 2-bromobenzaldehydes and arylhydrazines

C. S. Cho, D. K. Lim, N. H. Heo, T. Kim and S. C. Shim, Chem. Commun., 2004, 104 DOI: 10.1039/B312154M

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