Patent · US Active

Process for preparing optically active cyclic amines

US8283495B2 · kind B2 · utility

6Cited by

1References

10Claims

0Family size

Assignee

BAYER CROPSCIENCE AKTIENGESELLSCHAFT · DE

Inventors

Hansjörg Dietrich · Hofheim, DE
Mark James Ford · Nordenstadt, DE
Thomas Muller · Bad Homburg vor der Höhe, DE
José Maria Lassaletta Simon · Sevilla, ES
Abel Ros Laó · Sevilla, ES
Antonio Magriz Tascón · Lebrija, ES

Key dates

Filing date	Dec 28, 2005
Grant date	Oct 9, 2012
Priority date	—
Expiry date	Feb 11, 2030

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07B2200/07
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

Optically active cyclic amines of the formula (I) or salts thereofin which A, R0, R are each as defined in claim 1, and R0 and A, or R and A, or R0 and R may also form rings,where R and the NH—R0 group on the two ring carbon atoms marked with an asterisk (*) in each case are arranged in cis arrangement to one another and the stereochemical configuration on these carbon atoms is different from the racemic configuration, can be prepared effectively by a process, which comprises converting an imine (a racemic imine) of the formula (II)

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