Issue 16, 2019
From the journal:

Organic Chemistry Frontiers

One-pot synthesis of pyranoquinolin-1-ones via Rh(iii)-catalysed redox annulation of 3-carboxyquinolines and alkynes†

Zhijia Yang,a   Chao Pi, ORCID logo a   Xiuling Cui ORCID logo *a  and  Yangjie Wu ORCID logo *a  

* Corresponding authors

a College of Chemistry and Molecular Engineering, Zhengzhou University, 75 Daxue Street, Zhengzhou, Henan Province 450052, China
E-mail: cuixl@zzu.edu.cn, wyj@zzu.edu.cn

Abstract

A highly efficient and simple one-pot procedure to synthesize 3,4-dihydro-pyrano[4,3-b]quinolin-1-ones via Rh(III)-catalysed [4 + 2] redox annulation of 3-carboxyquinolines with internal alkynes has been developed. This reaction features the generality of a broad scope of substrates, avoidance of external oxidants, high atom-economy and excellent regioselectivity.

Graphical abstract: One-pot synthesis of pyranoquinolin-1-ones via Rh(iii)-catalysed redox annulation of 3-carboxyquinolines and alkynes

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Article information

DOI
https://doi.org/10.1039/C9QO00710E
Article type
Research Article
Submitted
03 Jun 2019
Accepted
26 Jun 2019
First published
27 Jun 2019

Org. Chem. Front., 2019,6, 2897-2901

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One-pot synthesis of pyranoquinolin-1-ones via Rh(III)-catalysed redox annulation of 3-carboxyquinolines and alkynes

Z. Yang, C. Pi, X. Cui and Y. Wu, Org. Chem. Front., 2019, 6, 2897 DOI: 10.1039/C9QO00710E

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