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.
Cu(<scp>ii</scp>)-grafted SBA-15 functionalized S-methylisothiourea aminated epibromohydrin (SBA-15/E-SMTU-Cu<sup>II</sup>): a novel and efficient heterogeneous mesoporous catalyst
作者:R. Jahanshahi、B. Akhlaghinia
DOI:10.1039/c7nj00849j
日期:——
(SBA-15/E-SMTU-CuII) as a novel and efficient, heterogeneous mesoporous catalyst was synthesized and characterized by different techniques, such as FT-IR, BET, small-angle XRD, FE-SEM, TEM, TGA, ICP-OES and CHNS analysis. The as-synthesized catalyst revealed a superior catalytic activity towards the one-pot synthesis of tetrahydropyridine derivatives through the pseudo five-component reactions of aromatic aldehydes
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.