Patent · US Expired

Manufacture of o-benzyltoluenes

US4117019A · kind A · utility

5Cited by

1References

13Claims

0Family size

Assignee

BASF SE

Inventors

Heinz Eilingsfeld · Bischofswerda, DE
Manfred Patsch · Monsheim, DE
Karl Baur · Baierbrunn, DE
Wolfgang Ruehenbeck · Weinheim, DE

Key dates

Filing date	Feb 14, 1975
Grant date	Sep 26, 1978
Priority date	—
Expiry date	Feb 14, 1995

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C2531/025
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

A process for the manufacture of o-benzyltoluenes by reaction of o-xylyl halides with benzenes in the presence of sulfuric acid or in the presence of phosphoric acid and adjuvants or in the presence of sulfuric acid and adjuvants. The products are starting materials for the manufacture of anthracene and anthraquinone and their derivatives.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.