In situ generation and intramolecular trapping of o-xylylenes by cobalt-catalyzed acetylene cooligomerizations. A one-step synthesis of polycycles

1976 ◽  
Vol 98 (21) ◽  
pp. 6755-6757 ◽  
Author(s):  
Raymond L. Funk ◽  
K. Peter C. Vollhardt
Keyword(s):  
One Step ◽  
In Situ Generation

scholarly journals One-Step Synthesis of 2-Alkenecarbodithioate Esters from Substituted Propargyl Ethers, and Their Conversion into Isothiazole Ring through a [4+1] Type Oxidative Ring Closure

2017 ◽  
Vol 12 (6) ◽  
pp. 1934578X1701200
Author(s):  
Kazuaki Shimada ◽  
Fumiya Ishikawa ◽  
Md. Ashraful Alam ◽  
Toshinobu Korenaga
Keyword(s):  
Elemental Sulfur ◽  
Ring Closure ◽  
One Step ◽  
Chloramine T ◽  
In Situ Generation

Treatment of substituted propargyl methyl ethers with a base and elemental sulfur in the presence of a thiolate ion afforded 2-alkenecarbodithioate esters in good yields. The reaction is assumed to proceed through a pathway involving in situ generation of propadienethione intermediates. Further conversion of 2-alkenecarbodithioate esters into 2,3-dihydroisothiazoles were efficiently performed by treating with chloramine-T through a [4+1] type oxidative ring closure via thiocarbonyl S-tosylimides.

In situ generation of supported palladium nanoparticles from a Pd/Sn/S chalcogel and applications in 4-nitrophenol reduction and Suzuki coupling

2019 ◽  
Vol 7 (9) ◽  
pp. 4446-4450 ◽  
Author(s):  
Xinyao Shan ◽  
Ning Sui ◽  
Wengang Liu ◽  
Manhong Liu ◽  
Jian Liu
Keyword(s):  
Palladium Nanoparticles ◽  
Suzuki Coupling ◽  
Pd Nanoparticles ◽  
Nitrophenol Reduction ◽  
One Step ◽  
Supported Palladium ◽  
In Situ Generation ◽  
Catalytic Applications

A one-step in situ route to obtain well-defined and size-controllable Pd nanoparticles was reported and employed for catalytic applications.

scholarly journals Towards coupling direct activation of methane with in situ generation of H2O2

2019 ◽  
Vol 9 (18) ◽  
pp. 5142-5149
Author(s):  
Amin Delparish ◽  
Shamayita Kanungo ◽  
John van der Schaaf ◽  
M. Fernanda Neira d'Angelo
Keyword(s):  
Direct Activation ◽  
Oxidation Of Methane ◽  
One Step ◽  
In Situ Generation ◽  
The One ◽  
Shed Light

This study aims to shed light on the one-step oxidation of methane to methanol with in situ generated H2O2 by means of a wall-coated catalytic microreactor.

In situ generation and trapping of thioimidates: an intermolecular tandem reaction to 4-acylimino-4H-3,1-benzothiazines

RSC Advances ◽  
2016 ◽  
Vol 6 (19) ◽  
pp. 15430-15440 ◽  
Author(s):  
Christian Steinebach ◽  
Anna-Christina Schulz-Fincke ◽  
Gregor Schnakenburg ◽  
Michael Gütschow
Keyword(s):  
Tandem Reaction ◽  
One Step ◽  
In Situ Generation ◽  
Acyl Donors

The proton-catalyzed transformation of 2-thioureidobenzonitriles in the presence of acyl donors provides a convenient one-step entry to 4-acylimino-4H-3,1-benzothiazines.

Highly diastereo- and enantioselective organocatalytic synthesis of trifluoromethylated erythritols based on the in situ generation of unstable trifluoroacetaldehyde

2021 ◽  
Author(s):  
Kazumasa Funabiki ◽  
Toshiya Gotoh ◽  
Ryunosuke Kani ◽  
Toshiyasu Inuzuka ◽  
Yasuhiro Kubota
Keyword(s):  
Trifluoromethyl Group ◽  
In Situ Generation

A highly diastereo- and enantioselective organocatalytic method to synthesise erythritols bearing a trifluoromethyl group has been investigated.

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.

scholarly journals A residue-free approach to water disinfection using catalytic in situ generation of reactive oxygen species

2021 ◽  
Author(s):  
Thomas Richards ◽  
Jonathan H. Harrhy ◽  
Richard J. Lewis ◽  
Alexander G. R. Howe ◽  
Grzegorz M. Suldecki ◽  
...  
Keyword(s):  
Reactive Oxygen Species ◽  
Reactive Oxygen ◽  
Water Disinfection ◽  
Oxygen Species ◽  
In Situ Generation
Sign in / Sign up

Export Citation Format

Share Document