Nickel-catalyzed hydrodefluorination/deuterodefluorination of CF 3 -alkenes with formic acid

-cinnamates using a nickel catalyst has been reported for the first time. Commercially available deuterated formic acid is a cheap and convenient deuterium source. The nickel-catalyst showed high selectivity for monodefluorination and avoided competitive reactions such as multiple defluorination or hydrogenation.