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thioamide
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An efficient one-step cyclization of thiobenzanilides to benzothiazoles: Using N-bromosuccinimide under mild conditions
, Article Journal of Sulfur Chemistry ; Volume 30, Issue 5 , 2009 , Pages 507-512 ; 17415993 (ISSN) ; Zargarani, D ; Sharif University of Technology
2009
Abstract
Benzothiazoles were readily prepared in one step from thiobenzanilides using N-bromosuccinimide in CH2Cl2-CCl4 (1:1V/V) at room temperature, with good yields under mild reaction conditions
Efficient and rapid route to thioamides via modified Willgerodt-Kindler reaction of quinaldine and picolines under microwave irradiation
, Article Journal of Sulfur Chemistry ; Volume 25, Issue 6 , 2004 , Pages 407-412 ; 17415993 (ISSN) ; Zali Boinee, H ; Taheri, S ; Sharif University of Technology
2004
Abstract
Various thioamides, especially thiobenzanilides and thioacetomorpholides, bearing a heterocycle ring were efficiently prepared by a modified Willgerodt-Kindler reaction of quinaldine and α- and γ-picoline with anilines and morpholine in the presence of sulfur, and a catalytic amount of DABCO under microwave irradiation
A simple and efficient synthesis of new indeno- and naphtho-fused thiophenes using arylthioacetamides
, Article Journal of Sulfur Chemistry ; Volume 27, Issue 6 , 2006 , Pages 545-552 ; 17415993 (ISSN) ; Saeidian, H ; Mirjafary, Z ; Taheri, S ; Sharif University of Technology
2006
Abstract
New indeno- and naphtho-fused thiophenes were synthesized from reaction of 2-bromo-1-indanone and 2-bromo-1-tetralone with arylthioacetamides in good yields
Microwave-assisted rapid hydrolysis and preparation of thioamides by Willgerodt-Kindler reaction
, Article Synthetic Communications ; Volume 31, Issue 2 , 2001 , Pages 317-321 ; 00397911 (ISSN) ; Ghaffarzadeh, M ; Sharif University of Technology
2001
Abstract
Aldehydes and aryl alkyl ketones were efficiently transformed to thioamides with the same number of carbon atoms via Willgerodt-Kindler reaction under microwave irradiation in solvent-free conditions. The thioamides obtained were hydrolyzed to corresponding carboxylic acids with microwave dielectric heating in one minute. Both reactions are very fast and the yields are excellent
A new one-pot, solvent free synthesis of diethyl 3,3-thiodipropenoate
, Article Journal of Sulfur Chemistry ; Volume 25, Issue 2-3 , 2004 , Pages 95-99 ; 17415993 (ISSN) ; Akhbari, M ; Arianfar, S ; Sharif University of Technology
2004
Abstract
Three isomers of diethyl 3,3-thiodipropenoate (DETDP) have been prepared as new compounds by the solvent free reaction of ethyl propiolate and thioamides or sodium sulfide in a short time and high yields
Synthesis of Nanoparticles and Application of the Prepared Catalyst for Some Organic Reactions, Efficient Synthesis of New Thiophene Derivatives and Asymmetric Synthesis of Sulfonic Acid Derivatives
, Ph.D. Dissertation Sharif University of Technology ; Matloubi Moghaddam, Firouz (Supervisor)
Abstract
ZnO nanopowder has been successfully synthesized by a microwave-assisted solution approach using Zn(CH3CO2)2.2H2O and NaOH. The results obtained from XRD, SEM and TEM show that the mean particle size is 30 nm. SEM and TEM micrographs of ZnO nanopowder also reveal that nanoparticles have spherical shape. A convenient one-pot multi-component reaction of aromatic aldehydes, enolizable ketones or β-keto esters and acetonitrile in the presence of acetyl chloride and 10 mol % ZnO nanoparticles for the synthesis of β-acetamido ketones/esters at room temperature is described. Catalytic activity of ZnO nanopowder for o-acylation of alcohol and phenol has also been investigated. On the other hand,...
A facile aerobic copper-catalyzed α-oxygenation of aryl thioacetamides: An efficient access to α-keto aryl thioamides
, Article Synlett ; Issue 6 , 2008 , Pages 892-896 ; 09365214 (ISSN) ; Mirjafary, Z ; Saeidian, H ; Jebeli Javan, M ; Sharif University of Technology
2008
Abstract
Copper(II) efficiently catalyzes the aerobic oxidation of aryl thioacetamides into the corresponding α-keto aryl thioamides in moderate to high yields in the presence of K2CO3 under O 2 atmosphere. This protocol is simple, clean, and generates water as the only byproduct. A mechanism is proposed for the reaction course. © Georg Thieme Verlag Stuttgart
Thioamides, Quinolinium and Isoquinolinium Salts: Useful Synthons in the Synthesis of Heterocyclic Compounds and Asymmetric Synthesis of Sulfonic acid Derivatives
, Ph.D. Dissertation Sharif University of Technology ; Matloubi Moghaddam, Firouz (Supervisor)
Abstract
We have reported a new and efficient synthesis of a broad spectrum of heterotetracyclic benzoxazocines via unique tandem 1,3-dinucleophilic addition of different bifunctional nucleophiles to quinolinium and isoquinolinium salts. The reaction generally involves the initial addition of nucleophiles to quinolinium salts to form enamine intermediate which can be trapped by intramolecular O/S-alkylation of nucleophiles. This protocol is a very mild and simple method for construction of eight-membered ring in fused heterocycles in a one-step process. We have also developed an efficient asymmetric synthesis of α,β-disubstituted γ-bisalkoxycarbonyl and α, β- disubstituted γ- phosphono sulfonates via...
A new and facile synthesis of thieno[2,3-b]indole derivatives via condensation of isocyanide and indolin-2-thiones
, Article Synlett ; Issue 7 , 2009 , Pages 1047-1050 ; 09365214 (ISSN) ; Saeidian, H ; Mirjafary, Z ; Taheri, S ; Kheirjou, S ; Sharif University of Technology
2009
Abstract
A new one-pot synthesis of thieno[2,3-b]indole ring systems is described. Condensation of cyclohexyl isocyanide with indolin-2-thiones yielded 3-cyclohexyaminomethylene-indolin-2-thiones, which upon reaction with α-halocarbonyl compounds produced the title compounds. © Georg Thieme Verlag Stuttgart