Issue 12, 2012
From the journal:

Catalysis Science & Technology

Supported sulfonic acids: reusable catalysts for more sustainable oxidative coupling of xanthene-like compounds with nucleophiles†

Calogero G. Piscopo,a   Sofie Bühler,a   Giovanni Sartoria  and  Raimondo Maggi*a  

* Corresponding authors

a “Clean Synthetic Methodology Group”, Dipartimento di Chimica Organica e Industriale dell’Università, Parco Area delle Scienze 17A, I-43124 Parma, Italy
E-mail: raimondo.maggi@unipr.it
Fax: +39 0521 905472
Tel: +39 0521 905411

Abstract

The oxidative coupling of xanthene and thioxanthene with methylene active compounds can be achieved in good yields (55–92%) and selectivities (83–99%) by using the commercial catalyst Amberlyst-15, an inexpensive, safe to handle and easy to recycle sulfonic resin. The method is completely metal-free and shows a very high atom economy (99.2%).

Graphical abstract: Supported sulfonic acids: reusable catalysts for more sustainable oxidative coupling of xanthene-like compounds with nucleophiles

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Article information

DOI
https://doi.org/10.1039/C2CY20428B
Article type
Communication
Submitted
21 Jun 2012
Accepted
09 Aug 2012
First published
10 Aug 2012

Catal. Sci. Technol., 2012,2, 2449-2452

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Supported sulfonic acids: reusable catalysts for more sustainable oxidative coupling of xanthene-like compounds with nucleophiles

C. G. Piscopo, S. Bühler, G. Sartori and R. Maggi, Catal. Sci. Technol., 2012, 2, 2449 DOI: 10.1039/C2CY20428B

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