Patent · US Expired

Separation of stereoisomeric N,N-dialkylamino-2alkyl-3-hydroxy-3-phenylalkanes

US7649114B2 · kind B2 · utility

0Cited by

3References

8Claims

0Family size

Assignee

Gruenenthal GmbH · DE

Inventors

Helmut Buschmann · Walheim, DE
Wolfgang Hell · Aachen, DE

Key dates

Filing date	May 29, 2006
Grant date	Jan 19, 2010
Priority date	—
Expiry date	May 29, 2026

Classification

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

Abstract

The invention concerns a method for the isolation of a stereoisomer from a mixture comprising the two stereoisomers of the general formulae (I-A) and (I-A′) and/or the two stereoisomers of the general formulae (I-B) and (I-B′)

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