Patent · US Active

Process for preparing substituted biphenyls by C-H activation

US9199915B2 · kind B2 · utility

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20Claims

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Assignee

BAYER CROPSCIENCE AKTIENGESELLSCHAFT · DE

Inventors

Matthias Riedrich
Lars Rodefeld · Leverkusen, DE
Frank Volz

Key dates

Filing date	Jul 29, 2013
Grant date	Dec 1, 2015
Priority date	—
Expiry date	Jul 29, 2033

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01J2531/822
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

The present invention relates to a novel process for preparing substituted biphenyls of the formula (III) by reacting arenes of the formula (I) with arenes of the formula (II) in the presence of a transition metal catalyst and of at least one oxidizing agent. R1 is NO2, an amino or amide group or a Schiff base.

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