scholarly journals CuI-catalyzed sulfenylation of 1-aryl trifluoromethyl pyrazolones: Direct formation of C-S-C bond using aryl iodides and carbon disulfide

2021 ◽  
pp. 109920
Author(s):  
Vaibhav D. Prajapati ◽  
Ronak V. Prajapati ◽  
Vishal B. Purohit ◽  
Jemin R. Avalani ◽  
Ronak D. Kamani ◽  
...  
Keyword(s):  
Carbon Disulfide ◽  
Aryl Iodides ◽  
Direct Formation

Nickel-catalyzed direct formation of the C–S bonds of aryl sulfides from arylsulfonyl chlorides and aryl iodides using Mn as a reducing agent

2017 ◽  
Vol 4 (1) ◽  
pp. 31-36 ◽  
Author(s):  
Yang Wang ◽  
Xiaofeng Zhang ◽  
Haixiong Liu ◽  
Hui Chen ◽  
Deguang Huang
Keyword(s):  
Reducing Agent ◽  
Aryl Iodides ◽  
Direct Formation ◽  
Aryl Sulfides

Unsymmetrical aryl sulfides were synthesized by nickel-catalyzed arylsulfonyl chlorides and aryl iodides via intermediate disulfides using Mn as a reducing agent.

scholarly journals New simple synthesis of ring-fused 4-alkyl-4H-3,1-benzothiazine-2-thiones: Direct formation from carbon disulfide and (E)-3-(2-aminoaryl)acrylates or (E)-3-(2-aminoaryl)acrylonitriles

2013 ◽  
Vol 9 ◽  
pp. 460-466 ◽  
Author(s):  
Qiuping Ding ◽  
Yuqing Lin ◽  
Guangni Ding ◽  
Fumin Liao ◽  
Xiaoyan Sang ◽  
...  
Keyword(s):  
Carbon Disulfide ◽  
Efficient Method ◽  
Simple Synthesis ◽  
Metal Catalyst ◽  
Mild Conditions ◽  
Wide Range ◽  
Direct Formation

A new simple and efficient method to construct ring-fused 4-alkyl-4H-3,1-benzothiazine-2-thione derivatives has been developed from carbon disulfide and (E)-3-(2-aminoaryl)acrylates or (E)-3-(2-aminoaryl)acrylonitriles under mild conditions, without the need for a metal catalyst. The newly developed method tolerates a wide range of substrates in moderate to excellent yields. Moreover, this method is advantageous over previous ones for the easy synthesis of reactants.

ChemInform Abstract: Direct Formation of Ring-Fused 1,3-Thiazine-2,4-dithiones from Aromatic o-Amino Carboxylic Acids: Observation of a Carbon Disulfide Mediated Thionation.

ChemInform ◽  
2010 ◽  
Vol 41 (51) ◽  
pp. no-no
Author(s):  
Philipp A. Ottersbach ◽  
Paul W. Elsinghorst ◽  
Hans-Georg Haecker ◽  
Michael Guetschow
Keyword(s):  
Carboxylic Acids ◽  
Carbon Disulfide ◽  
Direct Formation

Direct Formation of Ring-Fused 1,3-Thiazine-2,4-dithiones from Aromatico-Amino Carboxylic Acids: Observation of a Carbon Disulfide Mediated Thionation

2010 ◽  
Vol 12 (16) ◽  
pp. 3662-3665 ◽  
Author(s):  
Philipp A. Ottersbach ◽  
Paul W. Elsinghorst ◽  
Hans-Georg Häcker ◽  
Michael Gütschow
Keyword(s):  
Carboxylic Acids ◽  
Carbon Disulfide ◽  
Direct Formation

Synthesis of S-aryl thioesters via palladium-catalyzed thiocarbonylation of aryl iodides and aryl sulfonyl hydrazides

2020 ◽  
Vol 7 (19) ◽  
pp. 2938-2943
Author(s):  
Yeojin Kim ◽  
Kwang Ho Song ◽  
Sunwoo Lee
Keyword(s):  
Aryl Iodide ◽  
Aryl Iodides ◽  
Palladium Catalyzed

Aryl sulfonyl hydrazide reacted with aryl iodide in the presence of CO to give the corresponding S-aryl thioesters.

Palladium-catalyzed carbonylative transformation of aryl iodides and sulfonyl chlorides: convenient access to thioesters

2020 ◽  
Vol 7 (6) ◽  
pp. 885-889 ◽  
Author(s):  
Xinxin Qi ◽  
Zhi-Peng Bao ◽  
Xiao-Feng Wu
Keyword(s):  
Sulfonyl Chlorides ◽  
Aryl Iodides ◽  
Palladium Catalyzed ◽  
Convenient Access

A palladium-catalyzed carbonylative transformation of aryl iodides and sulfonyl chlorides to thioesters has been studied.

Improvement in the Fock test for determining the reactivity of dissolving pulp

TAPPI Journal ◽  
2013 ◽  
Vol 12 (11) ◽  
pp. 21-26 ◽  
Author(s):  
CHAO TIAN ◽  
LINQIANG ZHENG ◽  
QINGXIAN MIAO ◽  
CHRIS NASH ◽  
CHUNYU CAO ◽  
...  
Keyword(s):  
Moisture Content ◽  
Sodium Hydroxide ◽  
Constant Temperature ◽  
Carbon Disulfide ◽  
Testing Procedure ◽  
Dissolving Pulp ◽  
Water Bath ◽  
Testing Conditions ◽  
Pulp Sample ◽  
Fock Reactivity

The Fock test is widely used for assessing the reactivity of dissolving pulp. The objective of this study was to modify the method to improve the repeatability of the test. Various parameters that affect the repeatability of the Fock test were investigated. The results showed that Fock reactivity is dependent on testing conditions affecting the xanthation between cellulose and carbon disulfide, such as the moisture content of the pulp sample, sodium hydroxide (NaOH) concentration, xanthation temperature, carbon disulfide dosage, and xanthation time. The repeatability of the test was significantly improved using the following modified testing procedure: air dried sample in the constant temperature/humidity room, xanthation temperature of 66°F (19°C) in a water bath, xanthation time of 3 h, NaOH concentration of 9% (w/w), and 1.3 mL carbon disulfide.

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