ABSTRACT Reaction of aromatic amines with tertiary enamides was performed in n-hexane in the presence of acetic acid as an inexpensive and green catalyst at roomtemperature. This protocol provides the protected aminals through Markovnikov addition reaction with high to excellent yields and regiospecificity. In addition, this procedure was expanded for the synthesis of aminals from commercially available
A Metalloligand Appended with Thiazole Rings: Heterometallic {Co
<sup>3+</sup>
–Zn
<sup>2+</sup>
} and {Co
<sup>3+</sup>
–Cd
<sup>2+</sup>
} Complexes and Their Heterogeneous Catalytic Applications
作者:Deepak Bansal、Geeta Hundal、Rajeev Gupta
DOI:10.1002/ejic.201403072
日期:2015.2
AbstractThis work describes a Co3+‐based metalloligand containing appended thiazole rings and its reactions with secondary metal ions to produce heterometallic Co3+–Zn2+} and Co3+–Cd2+} complexes. Structural studies show that some of the appended thiazole rings from the metalloligand coordinate to secondary metal ions, whereas the remaining ones act as hydrogen‐bond acceptors to metal‐bound CH3OH or H2O molecules. These heterometallic complexes function as reusable heterogeneous catalysts for the ring‐opening reactions of epoxides as well as cyanation and Knoevenagel condensation reactions of aldehydes. The catalytic results illustrate that the microenvironment remains intact during the catalysis and potentially enhances the substrate interaction with the Lewis acidic secondary metal ions.
NPYY5 ANTAGONISTS
申请人:SHIONOGI & CO., LTD.
公开号:EP1249233B9
公开(公告)日:2009-08-05
[EN] COMPOUNDS USEFUL AS INHIBITORS OF JANUS KINASES<br/>[FR] COMPOSÉS UTILES EN TANT QU'INHIBITEURS DES KINASES DE JANUS
申请人:VERTEX PHARMA
公开号:WO2008116139A2
公开(公告)日:2008-09-25
[EN] The present invention relates to compounds useful as inhibitors of protein kinases, particularly of JAK family kinases. The invention also provides pharmaceutically acceptable compositions comprising said compounds and methods of using the compositions in the treatment of various disease, conditions, or disorders. [FR] La présente invention concerne des composés utiles en tant qu'inhibiteurs de protéine kinases, en particulier des kinases de la famille JAK. L'invention concerne également des compositions pharmaceutiquement acceptables comprenant lesdits composés et des procédés d'utilisation des compositions dans le traitement de diverses maladies, affections ou troubles.