scholarly journals Post-Ugi gold-catalyzed diastereoselective domino cyclization for the synthesis of diversely substituted spiroindolines

2013 ◽  
Vol 9 ◽  
pp. 2097-2102 ◽  
Author(s):  
Amit Kumar ◽  
Dipak D Vachhani ◽  
Sachin G Modha ◽  
Sunil K Sharma ◽  
Virinder S Parmar ◽  
...  
Keyword(s):  
Multicomponent Reaction ◽  
Cationic Gold

An Ugi four-component reaction of propargylamine with 3-formylindole and various acids and isonitriles produces adducts which are subjected to a cationic gold-catalyzed diastereoselective domino cyclization to furnish diversely substituted spiroindolines. All the reactions run via an exo-dig attack in the hydroarylation step followed by an intramolecular diastereoselective trapping of the imminium ion. The whole sequence is atom economic and the application of a multicomponent reaction assures diversity.

Preparation of Cationic Gold Nanoparticles for Gene Delivery

2008 ◽  
Vol 2 (2) ◽  
pp. 152-156 ◽  
Author(s):  
Guoping Chen ◽  
Michiaki Takezawa ◽  
Naoki Kawazoe ◽  
Tetsuya Tateishi
Keyword(s):  
Gold Nanoparticles ◽  
Gene Delivery ◽  
Cationic Gold

scholarly journals Electrochemical multicomponent synthesis of 4-selanylpyrazoles under catalyst- and chemical-oxidant-free conditions

2021 ◽  
Author(s):  
Yan Wu ◽  
Jin-Yang Chen ◽  
Jing Ning ◽  
Xue Jiang ◽  
Jie Deng ◽  
...  
Keyword(s):  
Multicomponent Reaction ◽  
Raw Materials ◽  
Multicomponent Synthesis ◽  
Mild Conditions ◽  
Simple Protocol ◽  
High Yields

An electrochemical multicomponent reaction was established under catalyst-, chemical-oxidant-free and mild conditions, which provides an eco-friendly and simple protocol for constructing 4-selanylpyrazoles from easily available raw materials with high yields.

scholarly journals Infrared action spectroscopy of nitrous oxide on cationic gold and cobalt clusters

2021 ◽  
Vol 23 (1) ◽  
pp. 329-338
Author(s):  
Ethan M. Cunningham ◽  
Alice E. Green ◽  
Gabriele Meizyte ◽  
Alexander S. Gentleman ◽  
Peter W. Beardsmore ◽  
...  
Keyword(s):  
Nitrous Oxide ◽  
Metal Clusters ◽  
Cobalt Clusters ◽  
Action Spectroscopy ◽  
Infrared Multiple Photon Dissociation ◽  
Cationic Gold

Infrared multiple-photon dissociation spectroscopy reveals the nature of nitrous oxide binding to metal clusters.

ChemInform Abstract: Multicomponent Reaction for Synthesis of 2-(Indol-3-yl)pyridine Derivatives under Microwave Irradiation.

ChemInform ◽  
2012 ◽  
Vol 43 (18) ◽  
pp. no-no
Author(s):  
Li-Jun Geng ◽  
Guo-Liang Feng ◽  
Jiu-Gao Yu ◽  
Hong-Li Zhang ◽  
Yu-Mei Zhang
Keyword(s):  
Microwave Irradiation ◽  
Multicomponent Reaction ◽  
Pyridine Derivatives

Prediction of multicomponent reaction yields using machine learning

2021 ◽  
Author(s):  
Xing‐Yong Zhu ◽  
Chuan‐Kun Ran ◽  
Ming Wen ◽  
Gui‐Ling Guo ◽  
Yuan Liu ◽  
...  
Keyword(s):  
Machine Learning ◽  
Multicomponent Reaction

scholarly journals Continuous-Flow Synthesis of Thioureas, Enabled by Aqueous Polysulfide Solution

Molecules ◽  
2021 ◽  
Vol 26 (2) ◽  
pp. 303
Author(s):  
András Gy. Németh ◽  
Renáta Szabó ◽  
György Orsy ◽  
István M. Mándity ◽  
György M. Keserű ◽  
...  
Keyword(s):  
Multicomponent Reaction ◽  
Continuous Flow ◽  
Flow Synthesis ◽  
Mild Conditions ◽  
Wide Range ◽  
Simple Filtration

We have developed the continuous-flow synthesis of thioureas in a multicomponent reaction starting from isocyanides, amidines, or amines and sulfur. The aqueous polysulfide solution enabled the application of sulfur under homogeneous and mild conditions. The crystallized products were isolated by simple filtration after the removal of the co-solvent, and the sulfur retained in the mother liquid. Presenting a wide range of thioureas synthesized by this procedure confirms the utility of the convenient continuous-flow application of sulfur.

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