β-Ketothioamides: efficient reagents in the synthesis of heterocycles

WS Guo, LR Wen, M Li - Organic & Biomolecular Chemistry, 2015 - pubs.rsc.org
β-Ketothioamides (KTAs) are versatile building blocks for the rapid construction of various
heterocyclic compounds. In the past decade, a number of successful reactions based on …

Yb(OTf)3-Mediated Access to Furans from β-Ketothioamides via Eschenmoser Sulfide Contraction Reaction

M Li, XJ Kong, LR Wen - The Journal of Organic Chemistry, 2015 - ACS Publications
A mild and straightforward synthetic protocol for construction of a furan skeleton promoted by
Yb (OTf) 3 from β-ketothioamides and arylglyoxals has been developed at room …

Thiocarbonylation of C (sp3)-H bonds in pyridylamines with CS2: Facile synthesis of pyrido [1, 2-a] pyrimidine-4-thiones

XY Zhou, XY Li, Z Zhang, DG Yu - Chinese Chemical Letters, 2021 - Elsevier
Herein, a facile synthesis of valuable pyrido [1, 2-a] pyrimidine-4-thiones is reported via
novel thiocarbonylation of C (sp 3)-H bonds with carbon disulfide (CS 2). This reaction …

One‐Pot Synthesis of N‐(Imidazo[1,2‐a]pyridin‐3‐yl)‐ and N‐(Imidazo[2,1‐b][1,3]thiazol‐5‐yl)sulfonamides

IB Rozentsveig, VY Serykh… - European Journal of …, 2013 - Wiley Online Library
The reaction of 2‐aminopyridines or 2‐aminothiazole with N‐(2, 2‐dichloro‐2‐
phenylethylidene) arensulfonamides affords the corresponding products of nucleophilic …

[PDF][PDF] Fast and efficient direct conversion of 2-aminopyridine into 2, 3-disubstituted imidazo [1, 2-a] pyridines

VB Kurteva, LA Lubenov, DV Nedeltcheva… - Arkivoc, 2012 - arkat-usa.org
A direct conversion of 2-aminopyridine into 2, 3-disubstituted imidazo [1, 2-a] pyridines was
studied. A series of products was obtained in an efficient, simple and fast protocol. The …

Cyclocondensation of N-aryl-3-oxobutanethioamides with 2-aminoimidazole and 2-aminobenzimidazole

EI Maiboroda, VN Britsun - Russian Journal of Organic Chemistry, 2008 - Springer
Abstract Cyclization of N-aryl-3-oxobutanethioamides with 2-aminoimidazole and 2-
aminobenzimidazole gave 7-methyl-5, 8-dihydroimidazo [1, 2-a] pyrimidine-5-thione or 2 …

[PDF][PDF] β-KETOTHIOAMIDES: VERSATILE PRECURSORS TOWARDS IMPORTANT HETEROCYCLIC FRAMEWORKS

MS Singh, S Ray - soc.chim.it
β-Ketothioamides (KTAs) have proved to be important precursors to furnish diverse
heterocyclic moieties over the last couple of decades. The convergence of reactive sites and …

Reaction of N-aryl-3-oxobutanethioamides with bis(guanidinium) carbonate

VN Britsun, AN Borisevich, MO Lozinskii - Russian Journal of Organic …, 2007 - Springer
Reaction of <Emphasis Type="Italic">N</Emphasis>-aryl-3-oxobutanethioamides with bis(guanidinium)
carbonat Page 1 ISSN 1070-4280, Russian Journal of Organic Chemistry, 2007, Vol. 43, No …