2,6-Xylenol

About: 2,6-Xylenol is a research topic. Over the lifetime, 72 publications have been published within this topic receiving 673 citations.

Process for the synthesis of ortho-cresol, 2,6-xylenol and 2,3,6-trimethyl phenol

Abstract: Phenol is methylated over an alumina catalyst using methanol, and the reaction product therefrom is combined with additional methanol over a promoted magnesium oxide catalyst. Major reaction products are ortho-cresol, 2,6-xylenol and 2,3,6-trimethylphenol. The promoted magnesium oxide catalyst contains metal promoters selected from the group consisting of titanium, chromium, and uranium together with sulfate ions.

Process for purification of 2,6-xylenol

Abstract: A method is provided for separating 2,6-xylenol from m,p-cresols by treating the mixture with methanol over alumina catalysts at about 360° C and 400-500 psig.

Electrostatic Effects on the Oxidative Polymerization of 2,6-Xylenol Catalyzed by Copper—Partially-quaternized Poly(vinylpyridine) Complexes

Abstract: 2, 6-Xylenol(XOH) was oxidatively polymerized by the Cu(II)-partially-quaternized poly (vinylpyridine) (QPVP) complexes in a homogeneous dimethylsulfoxide (DMSO) solution, and the electrostatic effects of the Cu-QPVP complex on the atalytic activity were discussed. The Cu-QPVP complex has a chelate structure in DMSO. The rate of polymerization of XOH by the Cu-QPVP catalyst was larger than that of the Cu-pyridine(Py) or the Cu-Poly(vinylpyridine) (PVP) catalyst. The results of the measurement of kinetic constants, the neutral salt effects and the infiuene of the monomer species, indicate that the higher activity of the CuQPVP catalyst was ascribed to the electrostatic action of the Cu-QPVP complex as a polycation. Moreover, the Cu-QPVP complex showed the higher catalytie activity when the degree of quaternization of QPVP was about 20-50. The catalytiactivity tends to become larger as increasing the degree of polymerization of QPVP.