been developed for the synthesis of different densely functionalizedpiperidinederivatives via pseudo-five component, one-pot domino reaction through a combination of β-ketoesters, aromatic aldehydes, and various amines using p-sulfonic acid calix[n]arenes as catalysts. The reaction was carried out in refluxing methanol, affording very good yields of the expected piperidine. Atomic economy, environmentally
已开发出一种高效,合适且高产的方法,用于通过拟五组分,β-酮酸酯,芳族醛和各种胺的组合,使用对磺酸通过假五组分合成不同的稠密官能化哌啶衍生物。杯[ n ]芳烃作为催化剂。反应在回流的甲醇中进行,得到非常好的预期的哌啶收率。原子经济,对环境无害的程序,催化剂的重复使用以及较短的反应时间是该协议的重要特征。
Multicomponent reaction for the synthesis of highly functionalized piperidine scaffolds catalyzed by TMSI
作者:Lisha Wu、Shiqiang Yan、Wensheng Wang、Yinta Li
DOI:10.1007/s11164-020-04208-6
日期:2020.9
An efficient method for the synthesis of highlyfunctionalized piperidines via one-pot domino reaction of β-ketoesters, aromatic aldehydes, and aromatic amines was reported. This multicomponent coupling was catalyzed by TMSI in methanol at room temperature, giving desired substituted pyridines in moderate to good yields.
developed for one-pot, five-component synthesis of highlyfunctionalized piperidines from reactions of β-keto esters, aromatic aldehydes, and various amines catalyzed in acetic acid medium. The reaction proceeded smoothly to generate the corresponding product in good yield. We have found that the use of acetic acid as reaction medium has a remarkable beneficial effect on the reaction, allowing it to
Multicomponent Reaction for the Synthesis of 1,2,3,4,6-Pentasubstituted Piperidines Catalyzed by NIS
作者:Liu Pengpeng
DOI:10.3987/com-21-14479
日期:——
An efficient, suitable and high yielding method has been developed for the synthesis of substituted piperidines via multicomponent, one-pot domino reaction of β-keto ester, aromatic amines, and aromatic aldehydes in the presence of catalytic amount of N-iodosuccinimide (NIS) in ethanol. Atom economy, mild reaction conditions, good to excellent yields, operational simplicity and easy work-up are some
Efficient one-pot synthesis of functionalized piperidine scaffolds via ZrOCl2·8H2O catalyzed tandem reactions of aromatic aldehydes with amines and acetoacetic esters
作者:Sarita Mishra、Rina Ghosh
DOI:10.1016/j.tetlet.2011.03.116
日期:2011.6
A highly efficient diastereoselective one-potsynthesis of functionalized piperidines has been developed based on an aqua-compatible ZrOCl2·8H2O catalyst via tandem reactions of aromatic aldehydes, amines, and acetoacetic esters.