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

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.

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.

Metal-free imidazolium hydrogen carbonate ionic liquids as bifunctional catalysts for the one-pot synthesis of cyclic carbonates from olefins and CO2

2019 ◽  
Vol 21 (14) ◽  
pp. 3834-3838 ◽  
Author(s):  
Jia Liu ◽  
Guoqiang Yang ◽  
Ying Liu ◽  
Dongsheng Wu ◽  
Xingbang Hu ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Bifunctional Catalysts ◽  
Cyclic Carbonates ◽  
One Pot ◽  
Metal Free ◽  
Direct Route ◽  
One Pot Synthesis ◽  
Hydrogen Carbonate ◽  
The One

A direct route for the synthesis of cyclic carbonates from olefins and CO2 has been achieved by using imidazolium hydrogen carbonate ionic liquids as bifunctional catalysts in the absence of a solvent.

Transition-metal-free cross-coupling of thioethers with aryl(cyano)iodonium triflates: a facile and efficient method for the one-pot synthesis of thiocyanates

2015 ◽  
Vol 51 (33) ◽  
pp. 7180-7183 ◽  
Author(s):  
Dan Zhu ◽  
Denghu Chang ◽  
Lei Shi
Keyword(s):  
Transition Metal ◽  
Efficient Method ◽  
Bond Cleavage ◽  
Cross Coupling ◽  
One Pot ◽  
Metal Free ◽  
One Pot Synthesis ◽  
One Step ◽  
The One

A novel transition-metal-free method for the one-step synthesis of thiocyanates via the C–S bond cleavage of readily available thioethers was developed.

One-pot Synthesis of Novel 2-(Benzofuran-2-yl)-4-Phenylquinoline-3-Carboxylates

2017 ◽  
Vol 41 (1) ◽  
pp. 45-49
Author(s):  
Wentao Gao ◽  
Xinbo Fu ◽  
Yanan Zhao ◽  
Dongfang Wang
Keyword(s):  
Transition Metal ◽  
Efficient Synthesis ◽  
One Pot ◽  
Metal Free ◽  
One Pot Synthesis ◽  
The One

A facile and efficient synthesis of novel ethyl 2-(benzofuran-2-yl)-4-phenylquinoline-3-carboxylates and the corresponding acids through the one-pot three-step reaction of ethyl 2-(chloromethyl)-4-phenylquinoline-3-carboxylate with a series of salicylaldehydes is described. It allows an efficient and practical access to some 2-(benzofuran-2-yl)quinolines under transition-metal-free conditions.

Metal-free, one-pot synthesis of 2-styrylquinolines via Friedländer annulation and sp3 C-H activation using 1,3-dimethylurea and L-tartaric acid (3:1) as deep eutectic solvent†

2022 ◽  
Author(s):  
Neeli Satyanarayana ◽  
Kota Sathish ◽  
Sakkani Nagaraju ◽  
Ravinder Pawar ◽  
Mohammad Faizan ◽  
...  
Keyword(s):  
Tartaric Acid ◽  
Deep Eutectic Solvent ◽  
Simple Metal ◽  
One Pot ◽  
Metal Free ◽  
One Pot Synthesis ◽  
Dimethyl Urea ◽  
The One

A simple, metal-free protocol is reported for the one-pot synthesis of 2-styrylquinolines using a combination of 1,3-dimethyl urea (1,3-DMU) and L-tartaric acid (LTA) (in 3:1 ratio) as deep eutectic solvent...

Regioselective three-component synthesis of 1,2-diarylindoles from cyclohexanones, α-hydroxyketones and anilines under transition-metal-free conditions

2019 ◽  
Vol 55 (28) ◽  
pp. 4079-4082 ◽  
Author(s):  
Cheng Li ◽  
Yanjun Xie ◽  
Fuhong Xiao ◽  
Huawen Huang ◽  
Guo-Jun Deng
Keyword(s):  
Transition Metal ◽  
One Pot ◽  
Metal Free ◽  
One Pot Synthesis ◽  
The One

A facile method for the one-pot synthesis of 1,2-diarylindoles under transition-metal-free conditions is described.

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