ChemInform Abstract: Graphene Oxide: A Reusable and Metal-Free Carbocatalyst for the One-Pot Synthesis of 2-Amino-3-cyanopyridines in Water.

ChemInform ◽  
2016 ◽  
Vol 47 (31) ◽  
Author(s):  
Dariush Khalili
Keyword(s):  
Graphene Oxide ◽  
One Pot ◽  
Metal Free ◽  
One Pot Synthesis ◽  
The One

Direct Propargylation of ortho-Quinone Methides with Alkynyl Zinc Reagents: An Application to the One-Pot Synthesis of 2,3-Disubstituted Benzofurans

Synlett ◽  
2020 ◽  
Vol 31 (08) ◽  
pp. 818-822
Author(s):  
Hongjun Ren ◽  
Manman Sun ◽  
Jinyu Song ◽  
Lei Wang ◽  
Wenguang Yin ◽  
...  
Keyword(s):  
Transition Metal ◽  
Functional Group ◽  
Quinone Methides ◽  
One Pot ◽  
Metal Free ◽  
Efficient Strategy ◽  
One Pot Synthesis ◽  
Subsequent Cyclization ◽  
The One

A transition-metal-free propargylation of ortho-quinone methides (o-QMs) with alkynyl zinc reagents was achieved. A conjugate alkynylation of an o-QM and subsequent cyclization sequence in the presence of KOt-Bu for the synthesis of 2,3-disubstituted benzofurans in one pot was developed. This efficient strategy exhibits good functional-group compatibility and gives moderate to good yields. The present reaction might serve as an attractive method for the synthesis of polysubstituted benzofurans.

Pyridine-grafted graphene oxide: a reusable acid–base bifunctional catalyst for the one-pot synthesis of β-phosphonomalonates via a cascade Knoevenagel–phospha Michael addition reaction in water

RSC Advances ◽  
2015 ◽  
Vol 5 (117) ◽  
pp. 96532-96538 ◽  
Author(s):  
Sara Sobhani ◽  
Farzaneh Zarifi
Keyword(s):  
Graphene Oxide ◽  
Michael Addition ◽  
Addition Reaction ◽  
Bifunctional Catalyst ◽  
Michael Addition Reaction ◽  
Acid Base ◽  
One Pot ◽  
One Pot Synthesis ◽  
The One ◽  
Reaction In Water

Py–GO as a new acid–base bifunctional catalyst was synthesized and employed for the one-pot synthesis of β-phosphonomalonates in water.

Metal-free catalysis for the one-pot synthesis of organic carbamates from amines, CO2, and alcohol at mild condition

2021 ◽  
pp. 131452
Author(s):  
Leizhi Zheng ◽  
Guoqiang Yang ◽  
Jia Liu ◽  
Xingbang Hu ◽  
Zhibing Zhang
Keyword(s):  
Mild Condition ◽  
One Pot ◽  
Metal Free ◽  
One Pot Synthesis ◽  
The One

scholarly journals Pentafluoropropionic Acid: An Efficient and Metal-Free Catalyst for the One-Pot Synthesis of Tetrahydrobenzo[b]pyran Derivatives

2014 ◽  
Vol 2014 ◽  
pp. 1-5 ◽  
Author(s):  
Naser Montazeri ◽  
Taghva Noghani ◽  
Mona Ghorchibeigy ◽  
Rozita Zoghi
Keyword(s):  
Reaction Time ◽  
Aromatic Aldehyde ◽  
One Pot ◽  
Short Reaction Time ◽  
Metal Free ◽  
One Pot Synthesis ◽  
Three Component Reaction ◽  
The One ◽  
High Yields

Pentafluoropropionic acid (PFPA) efficiently catalyzes the one-pot, three-component reaction of aromatic aldehyde, malononitrile, and dimedone to yield tetrahydrobenzo[b]pyran derivatives in high yields. This method is of great value because of its easy processing, short reaction time, environmentally, and high yields.

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