Method of manufacturing alkylphenyl alkyl ethers or alkylphenyl alkyl thioethers

US5387718A · kind A · utility

Assignee

• Huels Aktiengesellschaft · DE

Inventors

• Gunther Kohler · Marl, DE
• Peter Bickert · North Edison, US

Key dates

• Filing date: Jul 14, 1992
• Grant date: Feb 7, 1995
• Expiry date: Jul 14, 2012

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C319/14
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Alkylphenyl alkyl ethers or alkylphenyl alkyl thioethers, of the formula ##STR1## where U represents O or S; and R.sub.1 -R.sub.6 each independently represent an alkyl or aryl group with 1-6 C atoms, but R.sub.1 -R.sub.5 may each independently represent a functional group other than these, particularly --COOR (R=C.sub.1-4 alkyl), --NO.sub.2, --NH.sub.2, --O--CH.sub.2 --CH.sub.2 --OH, --OH, --CHO, --H, or -halogen; PA1 R.sub.1 -R.sub.5 may be bridged by suitable bifunctional substituents, such as, e.g., --(CH.sub.2).sub.x --, or --(CH.sub.2).sub.x --Z--(CH.sub.2).sub.y -- (where Z represents a hetero atom; x=0-7 and y=0-7), or by unsaturated substituents or anellated ring systems; may be produced in high space-time yield by reacting the corresponding phenol or thiophenol with a arylalkyl carbonate at a temperature of 70.degree.-300.degree. C. under elevated or normal pressure, in the presence of a monocyclic, bicyclic, polycyclic, or acyclic amidine as a catalyst.