Oxidative coupling of aromatic methyl groups

Details Oxidative coupling of aromatic methyl groups Oxidative coupling of aromatic methyl groups

1982-09-20

1983-08-23

Gantz, Delbert E.

Chemistry of hydrocarbon compounds

Aromatic compound synthesis

By condensation of entire cyclic molecules or entire...

585422, 585426, 585471, C07C 314, C07C 312

Patent

active

044005679

ABSTRACT:
Highly selective oxidative coupling of aromatic methyl groups, such as coupling toluene to DPE, is effected under mild, liquid phase conditions with a peroxodisulfate without expensive metal ion catalysts, in presence of substantial amounts, preferably equimolar, of methyl, ethyl or benzyl substituted quaternary ammonium salts. A continuous process is possible by electrolytic regeneration of the spent oxidant.

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patent: 4254293 (1981-03-01), Tremont et al.
patent: 4255602 (1981-03-01), Tremont et al.
patent: 4255603 (1981-03-01), Williamson et al.
patent: 4255604 (1981-03-01), Williamson et al.
Lewis et al., Chemistry and Industry, (1953) 897.
Ledwith et al., J.C.S. Chem. Communication, (1974), 291,292.
Rasmussen et al., Makromol. Chem., 182, 701-703 (1981).
Rasmussen et al., J. Am. Chem. Soc., 103, 730 (1981).

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