Issue 28, 2009
From the journal:

Chemical Communications

Efficient synthesis of 2,3-dihydro-1H-pyrazoles via a highly selective Pd(0)-catalyzed coupling-cyclization reaction of terminal 2-substituted 2,3-allenyl hydrazines with aryl iodides†‡

Xin Chenga  and  Shengming Ma*a  

* Corresponding authors

a State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Lu, Shanghai, P. R. China,
E-mail: masm@mail.sioc.ac.cn
Fax: (+86) 21-6416-7510

Abstract

2,3-Dihydro-1H-pyrazoles were highly selectively synthesized via the Pd(0)-catalyzed coupling-cyclization reaction of 4-non-substituted 2-substituted 2,3-allenyl hydrazines with aryl iodides in moderate to good yields.

Graphical abstract: Efficient synthesis of 2,3-dihydro-1H-pyrazoles via a highly selective Pd(0)-catalyzed coupling-cyclization reaction of terminal 2-substituted 2,3-allenyl hydrazines with aryl iodides

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Article information

DOI
https://doi.org/10.1039/B903634B
Article type
Communication
Submitted
20 Ақп. 2009
Accepted
18 Нау. 2009
First published
09 Сәу. 2009

Chem. Commun., 2009, 4263-4265

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Efficient synthesis of 2,3-dihydro-1H-pyrazoles via a highly selective Pd(0)-catalyzed coupling-cyclization reaction of terminal 2-substituted 2,3-allenyl hydrazines with aryl iodides

X. Cheng and S. Ma, Chem. Commun., 2009, 4263 DOI: 10.1039/B903634B

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