Ashley M. Gates, Swetha Jos and Webster L. Santos
Org. Biomol. Chem., 2022,20, 366-374
DOI:
10.1039/D1OB01533H,
Paper
We report a ligand-free copper-catalyzed β-borylation, defluorination of β-substituted, α-trifluoromethyl-α,β-unsaturated esters. The reaction affords geminal-difluoroallyl boronic acid derivatives in moderate to good yield. The reaction was tolerant of various substrates, and the utility of products was demonstrated in the defluorinative functionalization of the difluoroalkene to afford enol ethers.