NH4I-promoted oxidative formation of benzothiazoles and thiazoles from arylacetic acids and phenylalanines with elemental sulfur

2021 ◽  
Author(s):  
Yujia Xia ◽  
Huawen Huang ◽  
Wei Hu ◽  
Guo-Jun Deng
Keyword(s):  
Catalytic System ◽  
Elemental Sulfur ◽  
Three Component Reaction ◽  
Arylacetic Acids

A NH4I/K3PO4-based catalytic system has been established to enable oxidative formation of thiazole compounds from arylacetic acids and phenylalanines with elemental sulfur. While the three-component reaction of anilines or β-naphthylamines...

Elemental Sulfur Mediated Decarboxylative Redox Cyclization Reaction of o-Chloronitroarenes and Arylacetic Acids

2015 ◽  
Vol 17 (4) ◽  
pp. 976-978 ◽  
Author(s):  
Tirumaleswararao Guntreddi ◽  
Rajeshwer Vanjari ◽  
Krishna Nand Singh
Keyword(s):  
Elemental Sulfur ◽  
Cyclization Reaction ◽  
Arylacetic Acids

Indium-Catalyzed Direct Conversion of Lactones into Thiolactones and Selenolactones in the Presence of Elemental Sulfur and Selenium

Synthesis ◽  
2017 ◽  
Vol 50 (03) ◽  
pp. 565-574 ◽  
Author(s):  
Norio Sakai ◽  
Shuhei Horikawa ◽  
Yohei Ogiwara
Keyword(s):  
Catalytic System ◽  
Elemental Sulfur ◽  
Direct Conversion ◽  
The Novel ◽  
One Pot

The direct conversion of lactones into thiolactones with elemental sulfur (S8) catalyzed by InCl3/PhSiH3 in a one-pot reaction is described. This catalytic system was successfully applied to the novel preparation of selenolactones from lactones and selenium.

scholarly journals A novel three-component reaction between isocyanides, alcohols or thiols and elemental sulfur: a mild, catalyst-free approach towards O-thiocarbamates and dithiocarbamates

2019 ◽  
Vol 15 ◽  
pp. 1523-1533 ◽  
Author(s):  
András György Németh ◽  
György Miklós Keserű ◽  
Péter Ábrányi-Balogh
Keyword(s):  
Elemental Sulfur ◽  
Building Blocks ◽  
Reaction Conditions ◽  
One Pot ◽  
Catalyst Free ◽  
Synthetic Procedure ◽  
Three Component Reaction ◽  
Wide Range ◽  
Organic Chemist ◽  
The One

A new multicomponent reaction has been developed between isocyanides, sulfur and alcohols or thiols under mild reaction conditions to afford O-thiocarbamates and dithiocarbamates in moderate to good yields. The one-pot reaction cascade involves the formation of an isothiocyanate intermediate, thus a catalyst-free synthesis of isothiocyanates, as valuable building blocks from isocyanides and sulfur is proposed, as well. The synthetic procedure suits the demand of a modern organic chemist, as it tolerates a wide range of functional groups, it is atom economic and easily scalable.

Synthesis of γ-Amino Esters by Copper-Catalyzed Intermolecular 1,2-Aminoalkylation of Alkenes with Amines and α-Bromoalkyl Esters

Synthesis ◽  
2018 ◽  
Vol 50 (08) ◽  
pp. 1651-1660 ◽  
Author(s):  
Ren-Jie Song ◽  
Jin-Heng Li ◽  
Gao-Hui Pan ◽  
Ye-Xiang Xie ◽  
Shenglian Luo
Keyword(s):  
Catalytic System ◽  
Chemical Bonds ◽  
Amino Esters ◽  
Three Component Reaction ◽  
Single Reaction ◽  
Alkene Difunctionalization

A new copper-catalyzed intermolecular 1,2-aminoalkylation of alkenes with α-bromoalkyl esters and amines for the synthesis of γ-amino esters is described. Employing the Cu(OTf)2 and 2,2′-bipyridine catalytic system, the three-component reaction allows the formation of two new chemical bonds, including one C–C bond and one C–N bond, in a single reaction, and represents a new alkene difunctionalization using a radical strategy.

scholarly journals Functionalization of C–H bonds in acetophenone oximes with arylacetic acids and elemental sulfur

RSC Advances ◽  
2020 ◽  
Vol 10 (19) ◽  
pp. 11024-11032 ◽  
Author(s):  
Phuc H. Pham ◽  
Khang X. Nguyen ◽  
Hoai T. B. Pham ◽  
Thien T. Tran ◽  
Tung T. Nguyen ◽  
...  
Keyword(s):  
Transition Metals ◽  
Elemental Sulfur ◽  
Arylacetic Acids ◽  
Acetophenone Oxime

Annulation of acetophenone oxime acetates, arylacetic acids or esters, and elemental sulfur in absence of transition metals is reported.

CuI/Et2NH-Catalyzed One-Pot Highly Efficient Synthesis of 1,4-Disubstituted 1,2,3-Triazoles in Green Solvent Glycerol

Synthesis ◽  
2018 ◽  
Vol 50 (11) ◽  
pp. 2191-2199 ◽  
Author(s):  
Yongde Zhao ◽  
Shengqiang Guo ◽  
Yang Zhou ◽  
Bencai Dai ◽  
Cuimeng Huo ◽  
...  
Keyword(s):  
Catalytic System ◽  
Sodium Azide ◽  
Room Temperature ◽  
Green Solvent ◽  
Efficient Synthesis ◽  
One Pot ◽  
Highly Efficient ◽  
Three Component Reaction ◽  
Efficient Route ◽  
Terminal Acetylenes

A concise one-pot three-component reaction of organic halides­, terminal acetylenes, and sodium azide provided an efficient route for the synthesis of 1,2,3-triazoles. A variety of 1,2,3-triazoles were prepared in good to excellent yields with green solvent glycerol. This procedure used CuI and diethylamine, which are two easily available reagents as the new catalytic system at room temperature.

Three-component reaction between elemental sulfur, primary phosphines, and amines: straightforward synthesis of organylammonium trithiophosphonates

2012 ◽  
Vol 34 (3) ◽  
pp. 227-232 ◽  
Author(s):  
Alexander V. Artem'ev ◽  
Svetlana F. Malysheva ◽  
Nataliya A. Belogorlova ◽  
Nina K. Gusarova
Keyword(s):  
Elemental Sulfur ◽  
Three Component Reaction
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