Decarboxylative Alkynylation of Biomass‐Derived Compounds by Metal‐Free Visible Light Photocatalysis | Zendy

Schwarz Johanna | Zendy; König Burkhard | Zendy

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Decarboxylative Alkynylation of Biomass‐Derived Compounds by Metal‐Free Visible Light Photocatalysis

Author(s) -

Schwarz Johanna,

König Burkhard

Publication year - 2017

Publication title -

chemphotochem

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.13

H-Index - 18

ISSN - 2367-0932

DOI - 10.1002/cptc.201700034

Subject(s) - alkynylation , photocatalysis , biomass (ecology) , visible spectrum , metal , chemistry , photochemistry , pulp and paper industry , environmental science , materials science , optoelectronics , catalysis , ecology , organic chemistry , biology , engineering

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.

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