PROCEDE POUR LA PREPARATION D'UN MELANGE D'ANTRAQUINONE ET PYROKATEHYNE

Phenols and phenol ethers are hydroxylated with hydrogen peroxide in the presence of sulphur, selenium, tellurium, phosphorus, arsenic or antimony. High yields of dihydric materials are obtained by this process which avoids the need to use peracids or very strong acids.

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Bibliographische Detailangaben
1. Verfasser:	SOCIETE DES USINES CHIMIQUES RHONE-POULENC,FR
Format:	Patent
Sprache:	fre ; rum
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS APPARATUS THEREFOR CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY GENERAL METHODS OF ORGANIC CHEMISTRY METALLURGY ORGANIC CHEMISTRY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	Phenols and phenol ethers are hydroxylated with hydrogen peroxide in the presence of sulphur, selenium, tellurium, phosphorus, arsenic or antimony. High yields of dihydric materials are obtained by this process which avoids the need to use peracids or very strong acids.