Tetrahedron
Tetrahedron
5 years ago

Dienyl esters synthesis: Palladium-catalyzed C–H olefination of electron-deficient alkenes with allenoates

Dienyl esters synthesis: Palladium-catalyzed C–H olefination of electron-deficient alkenes with allenoates
The palladium(II)-catalyzed direct oxidative C–H olefination of readily available N-tosylacrylamides and allenoates for the synthesis of dienyl esters is described. The amide and ester moieties both act as the directing groups for the regio- and the stereo-controlled C–H functionalization/cyclization, which was proved by DFT calculations. Molecular oxygen was used as the terminal oxidant in the approach, rendering the reaction more sustainable.

Publisher URL: www.sciencedirect.com/science

DOI: S0040402017305112

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