Patent · US Expired

Method for producing (1,1′,4, 11″)-terphenyl compounds

US6762315B1 · kind B1 · utility

2Cited by

2References

11Claims

0Family size

Assignee

Clariant Corporation · DE

Inventors

Stefan Scherer · Büttelborn, DE
Steffen Haber · Landau, DE

Key dates

Filing date	Aug 24, 2001
Grant date	Jul 13, 2004
Priority date	—
Expiry date	Aug 24, 2021

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C67/343
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

The invention relates to a method for producing [1,1′:4′,1″]-terphenyl compounds of the formula which comprises reacting a metal aryl of the formula with a boric ester at −80 to 40° C. in the presence of an inert solvent, converting the reaction product by hydrolysis into a boronic acid of the formula reacting the boronic acid, a boronic anhydride obtainable from boronic acid by elimination of water, or a mixture of boronic acid and boronic anhydride, with an alcohol, and reacting the boronic ester formed thereby with a biphenyl compound of the formula at 40 to 180° C. in the presence of a catalyst, of an acid-binding agent and of a polar solvent.

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