3 years ago

Copper(I)-catalyzed stereoselective hydrogenation of 1,3-diynes and enynes

Copper(I)-catalyzed stereoselective hydrogenation of 1,3-diynes and enynes
A stereoselective hydrogenation of 1,3-diynes with an air-stable copper(I)/N-heterocyclic carbene complex, [IPrCuOH], has been developed. The corresponding products, 1,3-dienes, are obtained in a stereoselective manner depending on their substitution pattern: Diaryl-diynes yield E,E-1,3-dienes, whereas dialkyl-diynes are converted to the corresponding Z,Z-1,3-dienes. Hydrogenation and deuteration experiments with enynes indicate that these are competent reaction intermediates in the hydrogenation of diynes.

Publisher URL: www.sciencedirect.com/science

DOI: S0040402017305033

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