Grafting of Polymers from Clay Nanoparticles via In Situ Free Radical Surface-Initiated Polymerization:  Monocationic versus Bicationic Initiators

Langmuir ◽  
2003 ◽  
Vol 19 (10) ◽  
pp. 4381-4389 ◽  
Author(s):  
Xiaowu Fan ◽  
Chuanjun Xia ◽  
Rigoberto C. Advincula
Keyword(s):  
Free Radical ◽  
Clay Nanoparticles ◽  
Surface Initiated Polymerization

Polymer Brushes Grafted from Clay Nanoparticles Adsorbed on a Planar Substrate by Free Radical Surface-Initiated Polymerization

Langmuir ◽  
2003 ◽  
Vol 19 (3) ◽  
pp. 916-923 ◽  
Author(s):  
Xiaowu Fan ◽  
Chuanjun Xia ◽  
Timothy Fulghum ◽  
Mi-Kyoung Park ◽  
Jason Locklin ◽  
...  
Keyword(s):  
Free Radical ◽  
Polymer Brushes ◽  
Clay Nanoparticles ◽  
Surface Initiated Polymerization ◽  
Planar Substrate

Recent advances in Minisci-type reactions and applications in organic synthesis

2020 ◽  
Vol 24 ◽  
Author(s):  
Wengui Wang ◽  
Shoufeng Wang
Keyword(s):  
Free Radical ◽  
Hydrogen Atom ◽  
Organic Synthesis ◽  
Radical Reactivity ◽  
Atom Loss ◽  
Radical Generation ◽  
In Situ Generation ◽  
Thermal Cleavage ◽  
Synthetic Chemist

Abstract:: Minisci-type reactions have become widely known as reactions that involve the addition of carbon-centered radicals to basic heteroarenes followed by formal hydrogen atom loss. While the originally developed protocols for radical generation remain in active use today, in recent years by a new array of radical generation strategies allow use of a wider variety of radical precursors that often operate under milder and more benign conditions. New transformations based on free radical reactivity are now available to a synthetic chemist looking to utilize a Minisci-type reaction. Radical-generation methods based on photoredox catalysis and electrochemistry, which utilize thermal cleavage or the in situ generation of reactive radical precursors, have become popular approaches. Our review will cover the remarkably literature that has appeared on this topic in recent 5 years, from 2015-01 to 2020-01, in an attempt to provide guidance to the synthetic chemist, on both the challenges that have been overcome and applications in organic synthesis.

Effect of cell geometry on the in situ measurement of e.s.r.-free radical concentrations during pyrolysis of a ZnCl2-impregnated coal

Fuel ◽  
1988 ◽  
Vol 67 (9) ◽  
pp. 1249-1254 ◽  
Author(s):  
Timothy G. Fowler ◽  
Keith D. Bartle ◽  
Rafael Kandiyoti
Keyword(s):  
Free Radical ◽  
In Situ Measurement ◽  
Cell Geometry

Ligand free copper(i)-catalyzed synthesis of diaryl ether with Cs2CO3via a free radical path

2015 ◽  
Vol 44 (27) ◽  
pp. 12086-12090 ◽  
Author(s):  
Hong-Jie Chen ◽  
Mei-Chun Tseng ◽  
I-Jui Hsu ◽  
Wei-Ting Chen ◽  
Chien-Chung Han ◽  
...  
Keyword(s):  
Free Radical ◽  
Catalytic Reaction ◽  
Coupling Reaction ◽  
Reaction Conditions ◽  
Esi Ms ◽  
Ms Analysis ◽  
Diaryl Ether ◽  
Ligand Free

Complexes [Cu(i)(2,4-dimethylphenoxy)2]− (A) and [Cu(ii)(2,4-dimethylphenoxy)2(p-tolyl)]− (B) were observed by in situ ESI-MS analysis of the ligand free copper(i)-catalyzed C–O coupling reaction using Cs2CO3 under the catalytic reaction conditions.

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