scholarly journals A Brief Minireview of poly-triazole: Alkyne and Azide Substrate Selective, Metal-catalyst Design

2019 ◽  
Author(s):  
Jingpei Huo ◽  
Shu-ni Wang ◽  
Yongpeng Liang ◽  
Xiaohong Hu ◽  
Qianjun Deng ◽  
...  
Keyword(s):  
Reaction Mechanism ◽  
Click Chemistry ◽  
Organic Compounds ◽  
Chemical Industry ◽  
Catalyst Design ◽  
Research Progress ◽  
Metal Catalyst ◽  
Atom Economy ◽  
Essential Reactions

Organic compounds that contain poly-triazole are very important intermediates in pharmaceutical and chemical industry. Click chemistry is one of essential reactions that can form C-N bond with high atom economy. The research progress in metals catalyzed Click chemistry of azides and alkynes from the perspective of reaction mechanism is categorized and summarized.

scholarly journals Progress and Challenges of Mercury-Free Catalysis for Acetylene Hydrochlorination

Catalysts ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 1218
Author(s):  
Yanxia Liu ◽  
Lin Zhao ◽  
Yagang Zhang ◽  
Letao Zhang ◽  
Xingjie Zan
Keyword(s):  
Noble Metal ◽  
Chemical Industry ◽  
Catalytic Mechanism ◽  
Catalyst Design ◽  
Research Progress ◽  
Metal Catalyst ◽  
Noble Metal Catalyst ◽  
Acetylene Hydrochlorination ◽  
Design And Synthesis ◽  
Toxic Pollutant

Activated carbon-supported HgCl2 catalyst has been used widely in acetylene hydrochlorination in the chlor-alkali chemical industry. However, HgCl2 is an extremely toxic pollutant. It is not only harmful to human health but also pollutes the environment. Therefore, the design and synthesis of mercury-free and environmentally benign catalysts with high activity has become an urgent need for vinyl chloride monomer (VCM) production. This review summarizes research progress on the design and development of mercury-free catalysts for acetylene hydrochlorination. Three types of catalysts for acetylene hydrochlorination in the chlor-alkali chemical industry are discussed. These catalysts are a noble metal catalyst, non-noble metal catalyst, and non-metallic catalyst. This review serves as a guide in terms of the catalyst design, properties, and catalytic mechanism of mercury-free catalyst for the acetylene hydrochlorination of VCM. The key problems and issues are discussed, and future trends are envisioned.

scholarly journals Recent Advances in Metal Catalyst Design for CO2 Hydroboration to C1 Derivatives

Catalysts ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 58
Author(s):  
Sylwia Kostera ◽  
Maurizio Peruzzini ◽  
Luca Gonsalvi
Keyword(s):  
Transition Metals ◽  
Chemical Synthesis ◽  
Building Block ◽  
Co2 Reduction ◽  
Main Group ◽  
Catalyst Design ◽  
Metal Catalyst ◽  
Simple Molecule ◽  
Recent Advances ◽  
Renewable Feedstock

The use of CO2 as a C1 building block for chemical synthesis is receiving growing attention, due to the potential of this simple molecule as an abundant and cheap renewable feedstock. Among the possible reductants used in the literature to bring about CO2 reduction to C1 derivatives, hydroboranes have found various applications, in the presence of suitable homogenous catalysts. The current minireview article summarizes the main results obtained since 2016 in the synthetic design of main group, first and second row transition metals for use as catalysts for CO2 hydroboration.

Chitosan-Oxanorbornadiene: A Convenient Chitosan Derivative for Click Chemistry without Metal Catalyst Problem

2013 ◽  
Vol 2 (3) ◽  
pp. 177-180 ◽  
Author(s):  
Jatesuda Jirawutthiwongchai ◽  
Andreas Krause ◽  
Gerald Draeger ◽  
Suwabun Chirachanchai
Keyword(s):  
Click Chemistry ◽  
Metal Catalyst ◽  
Chitosan Derivative

Multifunctional alkoxysilanes prepared by thiol–yne “click” chemistry: their luminescence properties and modification on a silicon surface

RSC Advances ◽  
2014 ◽  
Vol 4 (108) ◽  
pp. 62827-62834 ◽  
Author(s):  
Yujing Zuo ◽  
Dengxu Wang ◽  
Jie Zhang ◽  
Shengyu Feng
Keyword(s):  
Heavy Metal ◽  
Click Chemistry ◽  
Silicon Surface ◽  
Luminescence Properties ◽  
Metal Catalyst

Novel multifunctional alkoxysilanes were prepared by facile thiol–yne “click” chemistry without heavy metal catalyst or solvent. These are used to modify the Si surface, which can then be used for further functionalization or the immobilization of polymers or biomolecules.

scholarly journals Fast and selective detection of volatile organic compounds using a novel pseudo spin-ladder compound CaCu2O3

2020 ◽  
Vol 1 (7) ◽  
pp. 2368-2379
Author(s):  
N. Lavanya ◽  
G. Veerapandi ◽  
S. G. Leonardi ◽  
N. Donato ◽  
G. Neri ◽  
...  
Keyword(s):  
Reaction Mechanism ◽  
Volatile Organic Compounds ◽  
Gas Sensor ◽  
Organic Compounds ◽  
Spin Ladder ◽  
Selective Detection ◽  
Volatile Organic ◽  
First Time

A novel pseudo spin-ladder CaCu2O3 compound (2-leg) based conductometric gas sensor has been proposed, for the first time, for the detection of volatile organic compounds (VOCs); (a) the proposed reaction mechanism in air, and (b) in the presence of acetone and ethanol.

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