Photocatalyzed Direct α-Alkylation of Esters Using Styrenes.

Adv Synth Catal

Department of Chemistry, Northwestern University, Silverman Hall, Evanston, Illinois 60208 USA.

Published: July 2023

A mild photocatalyzed approach to achieve the α-alkylation of esters via formation of an α -radical is disclosed here. Cesium enolates of esters were generated using CsCO as a base. A subsequent photocatalyzed oxidation at the α-carbon of these enolates produced an α-radical that was added into activated alkenes. This is the first example accessing the α-carbon radical of esters in photoredox catalyed transformations.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10923595PMC
http://dx.doi.org/10.1002/adsc.202300253DOI Listing

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