Results 111 to 120 of about 27,190 (294)
Molecules, 2008 The syntheses of some diheterocyclic compounds from 2-thioacetohydrazide- 5,7-dimethyl-1,2,4-triazolo[1,5-a]pyrimidine (1) are described. Compound 1 can be converted into triazoles, 1,3,4-oxadiazoles, and 1,3,4-thiadiazoles.
Guang-Fu Yang +4 more
doaj +1 more source
SynOpen, 2017 A facile and efficient protocol for the synthesis of 3,5-bis-mercapto-1,2,4-thiadiazoles by the oxidative dimerization of S-alkyl dithiocarbamates using periodic acid as an inexpensive and commercially available oxidant is reported.
Azim Ziyaei Halimehjani +3 more
doaj +1 more source
Organic Letters, 2016 The rhodium-catalyzed transannulation reaction between 1,2,3-thiadiazoles and alkynes, proceeding via intermediacy of the previously unknown Rh thiavinyl carbene, toward a highly efficient and regioselective synthesis of up to fully substituted ...
D. Kurandina, V. Gevorgyan
semanticscholar +1 more source
Synthesis of Steroidal Thiadiazoles from Steroidal Ketones
Molecules, 2005 Syntheses of steroidal heterocycles containing a five-membered N,S- heterocycle attached at the 6,7 positions of the B ring are reported. 5α-Cholestane-6-one (1), its 3β-acetoxy- (2) and 3β-chloro- (3) analogues reacted with semicarbazide and ...
M. Akhtar, M. Alam, M. Mushfiq
doaj +1 more source
Furoxánok és átmenetifém komplexeik előállítása és szerkezetvizsgálata = Synthesis, spectroscopy, and structure of furoxanes and their transition metal complexes [PDF]
, 2009 Munkánk során a nitril-oxidok (XCNO, X=F, Cl, Br, I, CN, CH3) ciklodimerizációs reakcióit vizsgáltuk ab initio módszerekkel. A nitril-oxidok kinetikailag kedvezményezett reakciója egy többlépéses reakció, ami furoxánokhoz vezet.
Havasi, Balázs +2 more
core
A one-pot multistep cyclization yielding thiadiazoloimidazole derivatives
Beilstein Journal of Organic Chemistry, 2014 A versatile synthetic procedure is described to prepare the benzimidazole-fused 1,2,4-thiadiazoles 2a–c via a methanesulfonyl chloride initiated multistep cyclization involving the intramolecular reaction of an in-situ generated carbodiimide with a ...
Debabrata Samanta +3 more
doaj +1 more source
Quinazolino-thiadiazoles as antimicrobial agents
Bulletin of Faculty of Pharmacy Cairo University, 2018 In the present research, we report the synthesis and in vitro antimicrobial activity of a new series of novel quinazolino-thiadiazoles as fused pharmacophore (3–20).
Harun Patel +7 more
doaj +1 more source
One- Pot synthesis and reactions of Novel 5-(4-fluoro-phenyl)-3-(8-hydroxyquinolin-5- yl)-7-phenyl-5H-thiazolo[3,2-a]pyrimidine-6- carbonitrile as antimicrobial agents [PDF]
, 2018 The synthesis of 5-(4-fluoro-phenyl)-3-(8-hydroxyquinolin-5-yl)-7-phenyl-5H-thiazolo[3,2-a]pyrimidine-6-carbonitrile 4 was achieved by one-potthree-component synthesis using p-TSA (10 mol %) in refluxing CH3CN.
Abdelmohsen, S.A.
core +1 more source
ESIPT-Related Origin of Dual Fluorescence in the Selected Model 1,3,4-Thiadiazole Derivatives [PDF]
, 2020 Grzegorz Czernel +12 more
openalex +1 more source
Synthesis and Antitumor Activity of Amide Derivatives Containing 1,3,4-Thiadiazole and Pyrazole Moieties [PDF]
, 2021 Jiaoli Ma +4 more
openalex +1 more source