Preparation of p-fuchsones and synthesis of p-dihydroxylated aro

Details Preparation of p-fuchsones and synthesis of p-dihydroxylated aro Preparation of p-fuchsones and synthesis of p-dihydroxylated aro

1994-01-10

1995-11-14

Reamer, James H.

Organic compounds -- part of the class 532-570 series

Organic compounds

Cyclohexadiene having atoms double bonded directly at the 1-...

552210, 552295, C07C 4545

Patent

active

054668395

ABSTRACT:
p-Dihydroxylated aromatic compounds are prepared via the oxidation of p-fuchsones, the latter advantageously being synthesized by reacting a phenolic compound having at least one hydrogen atom in the para-position to the hydroxyl function with a non-enolizable ketonic compound, in the presence of a catalytically effective amount of an acid catalyst and, optionally, a cocatalytically effective amount of an ionizable sulfur-containing compound.

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Chemical Abstracts, vol. 113, No. 3, 16 Juillet 1990, Columbus, Ohio, US; abstract No. 23364n, p. 606; colonne 2; & JP-A-2 078 641 (Mitsui Petrochemical Industries).
Collection of Czechoslovak Chemical Communications, vol. 46, 1981, Prague CS, pp. 873-882, J. Velek et al., "IR Spectra of some Quinone Methides. A Study of the ortho-Effect".
Chemical Abstracts, vol. 108, 1988, Columbus, Ohio, US; abstract No. 150241s, Kozlikovskii, YA. B. et al., "Reaction of phenol with benzophenone in the presence of aluminum phenolate.", p. 723; colonne 1; & IZV. Vyssh. Uchebn. Zaved., Khim. Khim Tekhnol., vol. 30, No. 7, 1987, pp. 31-34.
Methoden der Organischen Chemie (Houben-1 Weyl), vol. VII, No. 3B 1979, Stuttgart, pp. 458-462., P. Grunanger "Chinonmethide", pp. 459-460.

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