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.
Bismuth nitrate-catalyzed multicomponent reaction for efficient and one-pot synthesis of densely functionalized piperidine scaffolds at room temperature
作者:Goutam Brahmachari、Suvankar Das
DOI:10.1016/j.tetlet.2012.01.042
日期:2012.3
diastereoselective multicomponent one-pot synthesis of a series of pharmaceutically interesting functionalized piperidine derivatives has been developed based on a low-cost and environmentally benign Bi(NO3)3·5H2O catalyst via tandem reactions of 1,3-dicarbonyl compounds, aromatic aldehydes, and various amines in ethanol at room temperature. High atom-economy, good yields, eco-friendliness, and mild reaction conditions
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
alternative approach for not only highlysubstitutedtetrahydropyridines (THPs) but also fully substitutedtetrahydropyridines (FTHPs) in moderate to good yields. The plausible mechanism for the formation of THPs was greatly promoted by the H+ ion coming from acetic acid. [Supplementary materials are available for this article. Go to the publisher's online edition of Synthetic Communications® for the following