Modified Wacker TBHP oxidation of 1-Dodecene (cas 112-41-4)

Add time:08/27/2019    Source:sciencedirect.com

A higher 1-olefin (1-dodecene) was oxidized to 2-dodecanone and other ketones in a modified Wacker system featured by omitting the use of copper chloride and employing tert-butylhydroperoxide (TBHP) as oxidant. Acetonitrile was the solvent of choice due to its higher selectivity towards 2-dodecanone, the reaction occurring mostly in the interface. A maximum in conversion and selectivity was measured for a ratio [CH3CN]/[1-dodecene] = 10. The temperature abatement enhances the 2-dodecanone selectivity (61% at 40 °C) because of the lower extent of the competing isomerization reactions. An optimum in 2-dodecanone selectivity was found for a [TBHP]/[1-dodecene] ratio = 7. The use of H2O2 as oxidant led towards slower oxidation rates than TBHP. Other palladium salts (PdSO4 and Pd(CH3COO)2) and several R–CN solvents (propionitrile, benzonitrile, isobutyronitrile) yielded lower performances than palladium chloride and acetonitrile, respectively. On the contrary, β-cyclodextrin, a phase transfer catalyst, improved the selectivity towards 2-dodecanone.

We also recommend Trading Suppliers and Manufacturers of 1-Dodecene (cas 112-41-4). Pls Click Website Link as below: cas 112-41-4 suppliers

Prev:Studies on 1-Dodecene (cas 112-41-4) hydroformylation in biphasic catalytic system containing mixed micelle
Next:Phase behavior of the water+nonionic surfactant (C12E8)+1-Dodecene (cas 112-41-4) ternary system across a wide temperature range)