Green carbon disulfide surrogateviaa combination of potassium sulfide and chloroform for benzothiazine-thione and benzothiazole-thione construction

2018 ◽  
Vol 5 (15) ◽  
pp. 2390-2394 ◽  
Author(s):  
Wei Tan ◽  
Cuihong Wang ◽  
Xuefeng Jiang
Keyword(s):  
Carbon Disulfide ◽  
Potassium Sulfide

An efficient and green carbon disulfide surrogateviafacile combination of potassium sulfide and chloroform has been developed.

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.

Reactions of Carbon Disulfide and Carbon Dioxide Adducts (eta5-C5H5)(CO) 2Fe-CX2 with Organoiron Electrophiles

1988 ◽  
Author(s):  
Mary E. Giuseppetti ◽  
Bruce E. Landrum ◽  
John L. Shibley ◽  
Alan R. Cutler
Keyword(s):  
Carbon Dioxide ◽  
Carbon Disulfide

Spectroscopic Investigation of Chalcogen Bonding: Halide–Carbon Disulfide Complexes

ChemPhysChem ◽  
2021 ◽  
Author(s):  
Christian T. Haakansson ◽  
Timothy R. Corkish ◽  
Peter D. Watson ◽  
Hayden T. Robinson ◽  
Terrence Tsui ◽  
...  
Keyword(s):  
Carbon Disulfide ◽  
Spectroscopic Investigation

Lithium-Promoted Cycloaddition of Indole-2,3-dienolates and Carbon Disulfide as a One-Pot Route to Thiopyrano[4,3-b]indole-3(5H)-thiones

2021 ◽  
Author(s):  
Konstantin F. Suzdalev ◽  
Julia V. Vyalyh ◽  
Valery V. Tkachev ◽  
Ekaterina A. Lysenko ◽  
Oleg N. Burov ◽  
...  
Keyword(s):  
Carbon Disulfide ◽  
One Pot

scholarly journals Application of Commercially Available Anhydrous Potassium Fluoride for a Convenient Synthesis of Ketene Dithioacetals

1999 ◽  
Vol 23 (8) ◽  
pp. 492-493
Author(s):  
Sabir H. Mashraqui ◽  
Harini Hariharasubrahmanian
Keyword(s):  
Carbon Disulfide ◽  
Alkylating Agent ◽  
Potassium Fluoride ◽  
Solid Support ◽  
Ambient Conditions ◽  
Ketene Dithioacetals ◽  
Convenient Synthesis ◽  
Active Methylene Compounds ◽  
Active Methylene

Commercially available anhydrous KF without activation or solid support promotes condensation between active methylene compounds, carbon disulfide and an alkylating agent in dry DMF to allow the preparation of a variety of ketene dithioacetals in fair to good yields under ambient conditions.

Tandem Alkylation/Michael Addition Reaction of Dithiocarbamic Acids with Alkyl γ-Bromocrotonates: Access to Functionalized 1,3-Thiazolidine-2-thiones

Synthesis ◽  
2021 ◽  
Author(s):  
Azim Ziyaei Halimehjani ◽  
Petr Beier ◽  
Maryam Khalili Foumeshi ◽  
Ali Alaei ◽  
Blanka Klepetářová
Keyword(s):  
Amino Acids ◽  
Carbon Disulfide ◽  
Multicomponent Reaction ◽  
Michael Addition ◽  
Addition Reaction ◽  
Primary Amines ◽  
Oxidation Reactions ◽  
Michael Addition Reaction ◽  
Synthetic Utility ◽  
Reaction Proceeds

AbstractThiazolidine-2-thiones were prepared via a novel multicomponent reaction of primary amines (amino acids), carbon disulfide, and γ-bromocrotonates. The reaction proceeds via a domino alkylation/intramolecular Michael addition to provide the corresponding thiazolidine-2-thiones in high to excellent yields. By using diamines in this protocol, bis(thiazolidine-2-thiones) derivatives were synthesized. The synthetic utility of the adducts was demonstrated by hydrolysis, amidation, and oxidation reactions.

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