Manganese Catalyzed Direct Amidation of Esters with Amines
作者:Zhengqiang Fu、Xinghua Wang、Sheng Tao、Qingqing Bu、Donghui Wei、Ning Liu
DOI:10.1021/acs.joc.0c02478
日期:2021.2.5
metal catalyzed amidations remains a challenge. Here, a manganese(I)-catalyzed method for the direct synthesis of amides from a various number of esters and amines is reported with unprecedented substrate scope using a low catalyst loading. A wide range of aromatic, aliphatic, and heterocyclic esters, even in fattyacid esters, reacted with a diverse range of primary aryl amines, primary alkyl amines
Polymer supported Pd catalyzed carbonylation of aryl bromides for the synthesis of aryl esters and amides
作者:Sk Manirul Islam、Kajari Ghosh、Anupam Singha Roy、Rostam Ali Molla
DOI:10.1039/c4ra05365f
日期:——
various spectroscopic techniques. Its catalytic activity was evaluated for the alkoxycarbonylation and aminocarbonylation reactions. These carbonylation reactions were carried out for various substituted aryl bromides using alcohols and amines. Both the reactions were optimized by varying the bases, temperature and solvents. These experiments were carried out under high CO pressure. The catalyst was very
Amides are important structural motifs in pharmaceutical and agrochemical chemistry because of the intriguing biological active properties. We report here the amidation of commercially available es...
由于有趣的生物活性特性,酰胺是药物和农业化学化学中的重要结构基序。我们在此报告市售 es 的酰胺化...
Rhodium-catalysed addition reaction of aryl- and alkenylboronic acids to isocyanates
The addition reaction of aryl- and alkenylboronic acids to isocyanates is catalysed by a rhodium(I) complex, affording secondary amides under mild conditions.
芳基和烯基硼酸与异氰酸酯的加成反应由铑(I)配合物催化,在温和条件下提供仲酰胺。
Stereoselective Synthesis of 3-Alkylideneoxindoles by Rhodium-Catalyzed Cyclization Reaction of 2-Alkynylaryl Isocyanates with Aryl- and Alkenylboronic Acids
The rhodium-catalyzed cyclization reaction of 2-alkynylaryl isocyanates with aryl- and alkenylboronic acids furnishes 3-alkylideneoxindoles in a stereoselective manner. The reaction allows arrangement of various substituents on the exocyclic double bond and aromatic ring with wide functional tolerance.