Palladium catalyzed carbonylations of alkenyl halides with formic acid to get corresponding α,β-unsaturated carboxylic acids and esters

Add time:07/11/2019    Source:sciencedirect.com

Palladium-catalysed carbonylation reactions have been developed in the presence of formic acid as carbon monoxide source. α,β-Unsaturated carboxylic acids and esters were synthesized by the transformation of alkenyl halides in moderate to good yields. The selection of the base proved to be crucial regarding the reaction outcome. A set of various substrates were proven under optimised reaction conditions. Compared to aliphatic alcohols, phenols showed excellent reactivity as O-nucleophiles.

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