发现一种非均质的Ni催化剂可通过腈和胺的加氢偶合而在次级交叉亚胺的合成中发挥作用。在80°C和1 bar H 2下,介孔的Al 2 O 3负载的Ni纳米颗粒(缩写为Ni / m-Al 2 O 3 -600,其中600表示还原温度)在腈和胺的氢化反应中具有活性。,提供相应的交叉亚胺,产率在64.1–98.1%的范围内。密度泛函理论计算表明,苯甲腈(PhCN)氢化为苄胺(PhCH 2 NH 2)的活化能比PhCN和RNH 2的氢化交叉偶联的活化能高。Ni / m-Al 2 O 3 -600催化剂上的反应,表明后者反应更有利。理论计算与我们的实验结果非常吻合。
[EN] N-ALKYL PYRROLES AS HMG-COA REDUCTASE INHIBITORS<br/>[FR] PYRROLES DE N-ALKYL COMME INHIBITEURS DE L'HMG-COA-REDUCTASE
申请人:WARNER LAMBERT CO
公开号:WO2005056004A1
公开(公告)日:2005-06-23
HMGCo-A reductase inhibitor compounds useful as hypocholesterolemic and hypolipidemic compounds are provided. Also provided are pharmaceutical compositions of the compounds. Methods of making and methods of using the compounds are also provided. Formula (I).
Tunable Synthesis of α-Amino Boronic Esters from Available Aldehydes and Amines through Sequential One-Pot Dehydration and Copper-Catalyzed Borylacylation
作者:Qi Xia、Hua-Rong Chang、Juan Li、Jia-Yi Wang、Yan-Qing Peng、Gong-Hua Song
DOI:10.1021/acs.joc.9b02887
日期:2020.2.21
Copper-catalyzed multicomponent borylacylation of imines with acid chlorides and bis(pinacolato)diboron was developed for the preparation of synthetically useful and pharmacologically relevant α-amino boronic acid derivatives. Starting from a range of acid chlorides and imines with aryl, heteroaryl, and alkyl substituents, most of these ligand-free reactions proceeded smoothly at room temperature in moderate
prepared by the metathetic reaction of trace heavymetals like Cd, Zn, Cu and Hg with two different dithioligands of the formula ML 2 [ M= Cd, Zn, Cu and Hg and L= potassium-1,1-dicyano-2,2-ethylenedithiolate and potassium N-4-fluorobenzyl, N butyldithiocarbamate ] and characterized by elemental analysis, IR, UV-visible, 1H,13C NMR and AAS. AtomicAbsorption Spectrophotometric measurements revealed that
HMGCo-A reductase inhibitor compounds useful as hypocholesterolemic and hypolipidemic compounds are provided. Also provided are pharmaceutical compositions of the compounds. Methods of making and methods of using the compounds are also provided.