Patent · US Active

Solutions of anhydrous lanthanide salts and its preparation

US8470982B2 · kind B2 · utility

1Cited by

2References

30Claims

0Family size

Assignee

Ludwig-Maximilians-Universitat Munchen · DE

Inventors

Paul Knochel · Marburg, DE
Arkady L. Krasovskiy · Midland, US
Felix Kopp · New York, US

Key dates

Filing date	Sep 1, 2006
Grant date	Jun 25, 2013
Priority date	—
Expiry date	Mar 28, 2028

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C2602/42
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

The present invention relates to anhydrous solutions of MX3-Z LiA in a solvent, wherein M is a lanthanide including lanthanum, or yttrium or indium; z>0; and X and A are independently or both monovalent anions, preferably Cl, Br or I. The solution is readily prepared by dissolving or suspending MX3 or its hydrate and z equiv LiA in water or hydrophilic solvents, or mixtures thereof, removing the solvent under vacuum and dissolving the resulting powder in another solvent. The solution of MX3-Z LiA can advantageously be used e.g. in addition reactions of Grignard reagents to ketones and imines. Even the catalytic use of MX3-Z LiA is possible.

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