Borregaard Italia S.p.a.

Anic S.p.a.

Enichem Synthesis S.p.a

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Vittorio Messori

Ugo Romano

Francesco Minisci

Francesco Ancillotti

Paolo Maggioni

Giuseppe Terzoni

Mariano Correale

Lidio Micucci

Patrizia Mangini

Giambattista Castelli

Process for the preparation of ethers of hydroxybenzoic acid having general formula (I), which comprises reacting a hydroxybenzoic acid, optionally substituted, with a halide XR , wherein X is a halogen such as chlorine, in a basic environment and in an aqueous or aqueous/organic biphasic solvent.

Process for the preparation of ethers deriving from hydroxybenzoic acids

Process for the preparation of aromatic compounds containing a heterocyclic system, having general formula (II): ##STR1## which comprises reacting catechol, optionally substituted, with a methylene dihalide in a basic environment and in the presence of a solvent medium consisting of N-methylpyrrolidone.

Process for the preparation of aromatic compounds containing a

Mono-ethers of hydroquinones of formula (I) ##STR1## wherein R represents alkyl, alkoxy-alkyl, cycloalkyl, aryl-alkyl, or cycloalkyl-alkyl, and

Process for the preparation of mono-ethers of hydroquinones

Hydroxyaromatic compounds, especially phenols, are reacted with an alkyl tert.butyl ether in the presence of an acidic catalyst and the as formed light alcoholic fractions are removed by flashing.

Terbutylating hydroxyaromatic compounds

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