2-Amino-4, 5-dihydrothiophene-3-carbonitriles: A New Synthesis, Quantum Chemical Studies, and Mannich-Type Reactions Leading to New Hexahydrothieno [2, 3-d] …

VV Dotsenko, AV Bespalov, AS Vashurin… - ACS …, 2021 - ACS Publications
trans-2-Amino-4-aryl-5-benzoyl-4, 5-dihydrothiophene-3-carbonitriles were prepared either
by the reaction of 3-aryl-2-cyanothioacrylamides with α-thiocyanatoacetophenone or by the …

Synthesis of thieno [2, 3-b] indole-2, 3-diones and their ring expansions induced by diazomethane

R Berg, J Bergman - Tetrahedron, 2017 - Elsevier
Abstract Indole-2-thione 3 reacted quickly with oxalyl chloride to yield thieno [2, 3-b] indole-
2, 3-dione 4 together with the isomer thiazolo [3, 2-a] indole-2, 3-dione 5. These thieno [2, 3 …

A simple and versatile protocol for the preparation of functionalized heterocycles utilizing 4-benzoyl-5-phenylamino-2, 3-dihydrothiophene-2, 3-dione

H Kabirifard, S Ghahremani… - Journal of Sulfur …, 2015 - Taylor & Francis
The reaction of ethyl benzoylpyruvate with phenyl isothiocyanate in alkaline medium yields
4-benzoyl-5-phenylamino-2, 3-dihydrothiophene-2, 3-dione (1). Reaction of the intermediate …

A new rearrangement of spiro [indane-1, 3′-thiophene] and spiro [naphthalene-1, 3′-thiophene] derivatives accompanied by opening of the cycloalkane ring

K Bogdanowicz-Szwed, A Budzowski, R Gil… - Monatshefte für Chemie …, 2010 - Springer
Abstract The new thioamides 2-oxoindane-1-carbothioamides and 2-oxo-1, 2, 3, 4-
tetrahydronaphthalene-1-carbothioamides underwent conjugated addition to (E)-β …

Synthesis of Organic Ligands via Reactions of 4‐Benzoyl‐5‐phenylamino‐2,3‐dihydrothiophene‐2,3‐dione with N‐Nucleophiles

H Kabirifard, P Hafez Taghva, H Teimouri… - Heteroatom …, 2020 - Wiley Online Library
The reaction of 4‐benzoyl‐5‐phenylamino‐2, 3‐dihydrothiophene‐2, 3‐dione (1) with
aminoheteroaryls, lamotrigine, 1, 3‐diaminoheteroaryls, dapsone, NH2R (hydroxylamine …

Syntheses of 4-aryl-1-R2-6-R1-5-(N-arylthiocarbamoyl)-1, 2, 3, 4-tеtrahydropyrimidine-2-ones (thiones)

E Mayboroda, N Simurova - 2016 - dspace.nuft.edu.ua
Анотація It was found that 2-acylthioacetamides enter into Biginelli reaction with aromatic
aldehydes and ureas/thioureas with formation of 4-aryl-1-R2-6-R1-5-(N-Aryl-thiocarbamoyl) …

[PDF][PDF] CHEMISTRY & CHEMICAL TECHNOLOGY

O Maiboroda, N Simurova - 2016 - researchgate.net
It was found that 2-acylthioacetamides enter Biginelli reaction with aromatic aldehydes and
urea/thiourea forming 2-oxo (thio)-N, 4-diaryl-1, 2, 3, 4-tetrahydropyrimidine-5 …

[引用][C] Synthesis of 2-oxo (thio)-n, 4-diaryl-1, 2, 3, 4-tetrahydropyrimidine-5-carbothioamides

O Maiboroda, N Simurova - Chemistry and Chemical Technology, 2016 - elibrary.ru