Solutions of anhydrous lanthanide salts and its preparation
申请人:Ludwig-Maximilians-Universität München
公开号:EP1759765A1
公开(公告)日:2007-03-07
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.
Also claimed are a method for preparing the anhydrous solutions, the use of such solution in a chemical reaction and chemical compositions MX3•z LiA, with M, z, X and A as indicated above.
SOLUTIONS OF ANHYDROUS LANTHANIDE SALTS AND ITS PREPARATION
申请人:Ludwig-Maximilians-Universität München
公开号:EP1937407A1
公开(公告)日:2008-07-02
US8470982B2
申请人:——
公开号:US8470982B2
公开(公告)日:2013-06-25
[EN] SOLUTIONS OF ANHYDROUS LANTHANIDE SALTS AND ITS PREPARATION<br/>[FR] SOLUTIONS DE SELS DE LANTHANIDE ANHYDRE ET LEUR PROCEDE DE PREPARATION
申请人:UNIV MUENCHEN L MAXIMILIANS
公开号:WO2007026014A1
公开(公告)日:2007-03-08
[EN] 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. [FR] L'invention concerne des solutions anhydres de MX3-Z LiA dans un solvant, dans lesquelles M représente un lanthanide comprenant un lanthane ou un yttrium ou un indium; z > 0; et X et A représentent indépendamment ou ensemble des anions monovalents, de préférence, Cl, Br ou I. Ladite solution est préparée facilement par dissolution ou suspension de MX3 ou de son hydrate et de z équivalents de LiA dans l'eau ou dans des solvants hydrophiles, ou de mélanges de ceux-ci, par élimination du solvant sous vide et dissolution de la poudre résultante dans un autre solvant. On peut avantageusement utiliser la solution de MX3-Z LiA, par exemple, dans des réactions d'addition de réactifs Grignard avec des cétones et des imines. Il est même possible d'utiliser catalytiquement MX3-Z LiA.
Soluble Lanthanide Salts (LnCl3⋅2 LiCl) for the Improved Addition of Organomagnesium Reagents to Carbonyl Compounds