Hydration of terminal alkynes on Nafion film in supercritical carbon dioxide

Ol Ga A Kizas,Dmitrii Yu Antonov,Y E Vopilov,I A Godovikov,A S Peregudov,N D Kagramanov, Ludmila N Bulatnikova,L N Nikitin,A R Khokhlov

The Journal of Supercritical Fluids（2013）

Cited 8|Views11

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Abstract

To find out the conditions for mild hydration of carbon–carbon triple bonds the hydration reactions of some terminal alkynes (FcCCH, PhCCH, C5H11CCH) on the Nafion film in supercritical carbon dioxide (sc-CO2) were studied. The corresponding ketones were prepared in excellent yields. The hydration of 1-heptyne is accompanied by the isomerization of the terminal carbon–carbon triple bond into the internal one under acidic heterogeneous catalysis.

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Key words

Supercritical carbon dioxide,Nafion film,Alkynes hydration,Carbenium ion isomerization

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