Regio- and Chemoselective Metalation of Chloropyrimidine Derivatives with TMPMgCl⋅LiCl and TMP<sub>2</sub>Zn⋅2 MgCl<sub>2</sub>⋅2 LiCl
作者:Marc Mosrin、Paul Knochel
DOI:10.1002/chem.200801831
日期:2009.1.26
Efficient zincation and magnesiation of chlorinated pyrimidines can be performed at convenient temperatures (e.g., 25 and 55 °C) by using TMPMgCl⋅LiCl and TMP2Zn⋅2 MgCl2⋅2 LiCl (TMP=2,2,6,6‐tetramethylpiperidyl) as effective bases. Quenching of the resulting zincated or magnesiated pyrimidines with various electrophiles furnishes highlyfunctionalized pyrimidines in 51–93 % yield. Oxidative aminations
[EN] PREPARATION OF ALKALINE EARTH METAL-COMPLEXED METAL BISAMIDES FROM METAL MONOAMIDES<br/>[FR] PRÉPARATION DE BISAMIDES DE MÉTAL FORMANT UN COMPLEXE AVEC UN MÉTAL ALCALINO-TERREUX À PARTIR DE MONOAMIDES DE MÉTAL
申请人:BAYER CROPSCIENCE AG
公开号:WO2014124915A1
公开(公告)日:2014-08-21
The present invention relates to a process for preparing alkaline earth metal-complexed metal bisamides of the formula (I) from metal monoamides of the formula (II). The present invention further relates to a process for preparing alkaline earth metal monoamides of the formula (II-AE), to novel LiCl-free alkaline earth metal monoamides of the formula (II-AE-L), and to the use of these alkaline earth metal monoamides for metallation of aromatics, heteroaromatics, alkenes, alkynes and other organic compounds having activated C-H bonds.
[EN] ALKALINE EARTH METAL-COMPLEXED METAL BISAMIDES<br/>[FR] BISAMIDES MÉTALLIQUES COMPLEXÉS PAR DES MÉTAUX ALCALINO-TERREUX
申请人:BAYER IP GMBH
公开号:WO2013120911A1
公开(公告)日:2013-08-22
The present invention relates to alkaline earth metal-complexed metal bisamides of the formula (I), to a process for preparation thereof and to the use thereof for metallation of aromatics, heteroaromatics, alkenes, alkynes and other organic compounds having activated C-H bonds.
The present invention relates to alkaline earth metal-complexed metal bisamides of the formula (I), to a process for preparation thereof and to the use thereof for metallation of aromatics, heteroaromatics, alkenes, alkynes and other organic compounds having activated C—H bonds.
The present invention relates to alkaline earth metal-complexed metal bisamides of the formula (I), to a process for preparation thereof and to the use thereof for metallation of aromatics, heteroaromatics, alkenes, alkynes and other organic compounds having activated C—H bonds.