Catalytic Transamidation Reactions Compatible with Tertiary Amide Metathesis under Ambient Conditions
作者:Nickeisha A. Stephenson、Jiang Zhu、Samuel H. Gellman、Shannon S. Stahl
DOI:10.1021/ja8094262
日期:2009.7.29
present study reveals that simple zirconium- and hafnium-amido complexes are highly efficient catalysts for equilibrium-controlled transamidation reactions between secondary amines and tertiary amides. In a number of cases, transamidation proceeds rapidly at room temperature. We find that these new catalysts are sufficiently active to promote the metathesis of tertiary amides, which arises from successive
Tri‐Functional Elemental Sulfur Enabling Bis‐Heteroannulation of Methyl Ketoximes with Methyl
<i>N</i>
‐Heteroarenes
作者:Huawen Huang、Qian Wang、Zhenhua Xu、Guo‐Jun Deng
DOI:10.1002/adsc.201801324
日期:2019.2
No Abstract
没有摘要
Aerobic Oxidative Amidation of Aromatic and Cinnamic Aldehydes with Secondary Amines by CuI/2-Pyridonate Catalytic System
作者:Mingwen Zhu、Ken-ichi Fujita、Ryohei Yamaguchi
DOI:10.1021/jo301553v
日期:2012.10.19
A simple and convenient CuI/2-pyridonate catalytic system for the oxidative amidation of aldehydes with secondary amines has been developed. With this system, a variety of useful arylamides have been synthesized in moderate to good yields in the presence of small amount of copper catalyst and the pyridonate ligand, generating only water as a coproduct. Synthesis of cinnamamides was also achieved by
Ir<sup>III</sup>-Catalyzed direct syntheses of amides and esters using nitriles as acid equivalents: a photochemical pathway
作者:Ranadeep Talukdar
DOI:10.1039/d0nj00002g
日期:——
unprecedented IrIII[df(CF3)ppy]2(dtbbpy)PF6-catalyzed simple photochemical process for direct addition of amines and alcohols to the relatively less reactive nitrile triple bond is described herein. Various amides and esters are synthesized as the reaction products, with nitriles being the acid equivalents. A mini-library of different types of amides and esters is made using this mild and efficient process, which
本文描述了空前的Ir III [df(CF 3)ppy] 2(dtbbpy)PF 6催化的简单光化学过程,用于将胺和醇直接加成到反应性较小的腈三键上。合成了各种酰胺和酯作为反应产物,其中腈是酸的当量。使用这种温和有效的方法可以制得不同类型的酰胺和酯的小型文库,该方法在可见光照射下(λ = 445 nm)仅使用1 mol%的光催化剂。该反应策略对于克级合成也是有效的。
Cobalt-catalyzed aminocarbonylation of (hetero)aryl halides promoted by visible light
作者:Alexander M. Veatch、Erik J. Alexanian
DOI:10.1039/d0sc02178d
日期:——
aminocarbonylation of (hetero)arylhalides is widely applied in the synthesis of amides but relies heavily on the use of precious metal catalysis. Herein, we report an aminocarbonylation of (hetero)arylhalides using a simple cobalt catalyst under visible light irradiation. The reaction extends to the use of (hetero)aryl chlorides and is successful with a broad range of amine nucleophiles. Mechanistic investigations