Physically mixed catalytic system of amino and sulfo-functional porous organic polymers as efficiently synergistic co-catalysts for one-pot cascade reactions

2020 ◽  
Vol 44 (22) ◽  
pp. 9546-9556
Author(s):  
Zunming Sun ◽  
Fuyao Liu ◽  
Xinyue Yang ◽  
Xianpei Huang ◽  
Mengmeng Zhang ◽  
...  
Keyword(s):  
Catalytic System ◽  
Sulfonic Acid ◽  
Polymeric Materials ◽  
Cascade Reactions ◽  
Porous Polymers ◽  
Amino Groups ◽  
Acid Base ◽  
Porous Organic Polymers ◽  
One Pot ◽  
Co Catalysts

Acid/base bi-functional polymeric materials were prepared using physically mixed porous polymers P(DVB-VBS) with sulfonic acid and P(DVB-VBA) with amino groups for various cascade reactions.

Amine-Functionalized GO as an Active and Reusable Acid–Base Bifunctional Catalyst for One-Pot Cascade Reactions

ACS Catalysis ◽  
2013 ◽  
Vol 4 (2) ◽  
pp. 394-401 ◽  
Author(s):  
Fang Zhang ◽  
Huangyong Jiang ◽  
Xiaoyan Li ◽  
Xiaotao Wu ◽  
Hexing Li
Keyword(s):  
Bifunctional Catalyst ◽  
Cascade Reactions ◽  
Acid Base ◽  
One Pot ◽  
Amine Functionalized

Synthesis of 4-Aryldihydrocoumarins via a Sequential Michael Addition–Lactonization Route

2021 ◽  
Vol 08 ◽  
Author(s):  
Anshu Kumar Sinha ◽  
Chandra Mohan Srivastava ◽  
Gyandshwar K. Rao ◽  
Manvika Karnatak ◽  
Ved Prakash Verma ◽  
...  
Keyword(s):  
Catalytic System ◽  
Michael Addition ◽  
Title Compound ◽  
Sulfonic Acid ◽  
Metal Salt ◽  
The Other ◽  
One Pot ◽  
Sequential Reaction ◽  
Acid Catalyzed ◽  
Catalyst Efficiency

Background: Coumarin and its derivatives have attracted the attention of synthetic chemists due to their importance in pharmaceutical and medicinal chemistry. The acid-catalyzed cyclization route constitutes the method of choice to access these important compounds. Objective: In this paper, we have discussed the synthesis of 4-aryldihydrocoumarins via a one-pot p-sulfonic acid calix[4]arene catalyzed reaction. Method: The easily prepared calix[4]arene derivative catalyzes a sequential reaction involving Michael addition followed by intramolecular lactonization to afford the title compound in decent yield. Results: The described methodology is devoid of any metal salt, thus making it a very appealing protocol to safely produce dihydrocoumarins of pharmacological importance. Conclusion: The easy recovery, non-toxicity, and reusability of the catalytic system are some of the other advantages of our procedure. In addition, the catalyst efficiency is not compromised after its successive use in reactions.

scholarly journals Copper-catalyzed CuAAC/intramolecular C–H arylation sequence: Synthesis of annulated 1,2,3-triazoles

2012 ◽  
Vol 8 ◽  
pp. 1771-1777 ◽  
Author(s):  
Rajkumar Jeyachandran ◽  
Harish Kumar Potukuchi ◽  
Lutz Ackermann
Keyword(s):  
Catalytic System ◽  
Cascade Reactions ◽  
Direct Access ◽  
One Pot ◽  
Direct Preparation

Step-economical syntheses of annulated 1,2,3-triazoles were accomplished through copper-catalyzed intramolecular direct arylations in sustainable one-pot reactions. Thus, catalyzed cascade reactions involving [3 + 2]-azide–alkyne cycloadditions (CuAAC) and C–H bond functionalizations provided direct access to fully substituted 1,2,3-triazoles with excellent chemo- and regioselectivities. Likewise, the optimized catalytic system proved applicable to the direct preparation of 1,2-diarylated azoles through a one-pot C–H/N–H arylation reaction.

Synergistic catalysis of one-pot cascade reactions by acidic and basic binary porous polymers

2019 ◽  
Vol 478 ◽  
pp. 221-229 ◽  
Author(s):  
Xiaochen Wang ◽  
Lingyu Zhang ◽  
Zengjing Guo ◽  
Yuming Shi ◽  
Yu Zhou ◽  
...  
Keyword(s):  
Cascade Reactions ◽  
Porous Polymers ◽  
One Pot ◽  
Synergistic Catalysis

Acid–base bifunctional amphiphilic organic nanotubes as a catalyst for one-pot cascade reactions in water

2018 ◽  
Vol 42 (2) ◽  
pp. 1368-1372 ◽  
Author(s):  
Linfeng Xiong ◽  
Hui Zhang ◽  
Zidong He ◽  
Tianqi Wang ◽  
Yang Xu ◽  
...  
Keyword(s):  
Cascade Reactions ◽  
Acid Base ◽  
One Pot ◽  
Organic Nanotubes

A novel acid–base bifunctional amphiphilic organic nanotube is synthesized and used for one-pot deacetalization-Knoevenagel cascade reactions in water.

Mesoporous polymeric catalysts with both sulfonic acid and basic amine groups for the one-pot deacetalization−Knoevenagel reaction

2019 ◽  
Vol 43 (42) ◽  
pp. 16676-16684 ◽  
Author(s):  
Zunming Sun ◽  
Xinyue Yang ◽  
Xianpei Huang ◽  
Mengmeng Zhang ◽  
Guomin Bian ◽  
...  
Keyword(s):  
Sulfonic Acid ◽  
Mesoporous Structure ◽  
Cascade Reaction ◽  
Knoevenagel Reaction ◽  
Acid Base ◽  
One Pot ◽  
Amine Groups ◽  
The One ◽  
Basic Amine

Acid–base bifunctional P(DVB–NH2–n-SO3H) catalysts with mesoporous structure have been prepared and characterized for a one-pot cascade reaction with good recycling properties.

Microporous organic nanotube network supported acid and base catalyst system for one-pot cascade reactions

2016 ◽  
Vol 40 (9) ◽  
pp. 7282-7285 ◽  
Author(s):  
Hui Zhang ◽  
Linfeng Xiong ◽  
Zidong He ◽  
Aiqing Zhong ◽  
Tianqi Wang ◽  
...  
Keyword(s):  
Catalyst System ◽  
Catalytic Performance ◽  
Cascade Reactions ◽  
Base Catalyst ◽  
Acid Base ◽  
One Pot ◽  
Acid And Base ◽  
Excellent Catalytic Performance

Acid/base functionalized microporous organic nanotube networks with excellent catalytic performance for one-pot cascade reactions were successfully prepared.

Core–shell structured MgAl-LDO@Al-MS hexagonal nanocomposite: an all inorganic acid–base bifunctional nanoreactor for one-pot cascade reactions

2014 ◽  
Vol 2 (2) ◽  
pp. 339-344 ◽  
Author(s):  
Ping Li ◽  
Yu Yu ◽  
Pei-Pei Huang ◽  
Hua Liu ◽  
Chang-Yan Cao ◽  
...  
Keyword(s):  
Cascade Reactions ◽  
Core Shell ◽  
Inorganic Acid ◽  
Acid Base ◽  
One Pot

Phosphor-doped hexagonal boron nitride nanosheets as effective acid–base bifunctional catalysts for one-pot deacetalization–Knoevenagel cascade reactions

2018 ◽  
Vol 8 (22) ◽  
pp. 5900-5905 ◽  
Author(s):  
Jun Zhao ◽  
Baining Lin ◽  
Yifan Zhu ◽  
Yonghua Zhou ◽  
Hongyang Liu
Keyword(s):  
Boron Nitride ◽  
Hexagonal Boron Nitride ◽  
Cascade Reactions ◽  
Cascade Reaction ◽  
Bifunctional Catalysts ◽  
Acid Base ◽  
One Pot ◽  
Boron Nitride Nanosheets ◽  
Brönsted Acid ◽  
Acid And Base

Phosphor doping creates well-defined Brønsted acid and base sites on h-BN nanosheets, ensuring the smooth proceeding of deacetalization–Knoevenagel cascade reaction.

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