Issue 98, 2016, Issue in Progress
From the journal:

RSC Advances

Copper-catalyzed [3 + 2] cycloaddition reactions: synthesis of substituted pyrazolo[1,5-c]quinazolines with N-iminoquinazolinium ylides and olefins as starting materials†

Haiyan Feng,ab   Tao Wang,*ab   Songtao Chen,b   Yangfei Huang,b   Weijie Yu,b   Yuanyuan Huangb  and  Fei Xiong*ab  

* Corresponding authors

a National Research Center for Carbohydrate Synthesis and Key Laboratory of Chemical Biology, Jiangxi Normal University, Nanchang, Jiangxi 330022, P. R. China
E-mail: wangtao@jxnu.edu.cn, xiongfei@jxnu.edu.cn

b College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, Jiangxi 330022, P. R. China

Abstract

Here we describe a copper-catalyzed [3 + 2] cycloaddition reaction between N-iminoquinazolinium ylide and various polar olefins in mild conditions. In this process, pyrazolo[1,5-c]quinazoline derivatives were efficiently synthesized via cycloaddition followed by oxo-dehydrogenation in moderate to good yield.

Graphical abstract: Copper-catalyzed [3 + 2] cycloaddition reactions: synthesis of substituted pyrazolo[1,5-c]quinazolines with N-iminoquinazolinium ylides and olefins as starting materials

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Article information

DOI
https://doi.org/10.1039/C6RA22006A
Article type
Paper
Submitted
02 Sep 2016
Accepted
01 Oct 2016
First published
03 Oct 2016

RSC Adv., 2016,6, 95774-95779

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Copper-catalyzed [3 + 2] cycloaddition reactions: synthesis of substituted pyrazolo[1,5-c]quinazolines with N-iminoquinazolinium ylides and olefins as starting materials

H. Feng, T. Wang, S. Chen, Y. Huang, W. Yu, Y. Huang and F. Xiong, RSC Adv., 2016, 6, 95774 DOI: 10.1039/C6RA22006A

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