Decarboxylative Alkynylation of Biomass‐Derived Compounds by Metal‐Free Visible Light Photocatalysis
- 10 April 2017
- journal article
- research article
- Published by Wiley in ChemPhotoChem
- Vol. 1 (5) , 237-242
Abstract
A mild method for decarboxylative C−C bond formation between natural carboxylic acids and alkynes is reported. Activation of a very broad scope of carboxylic acids derived from renewable resources is achieved by esterification to N‐(acyloxy)phthalimides. The cross‐coupling with acetylenic sulfones proceeds under irradiation with green light (528 nm) in the presence of the organic photocatalyst eosin Y and provides a metal‐free, environmentally friendly and inexpensive alternative to known decarboxylative alkynylations.Keywords
Funding Information
- Deutsche Forschungsgemeinschaft (GRK 1626)
- Deutsche Bundesstiftung Umwelt
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