Results 151 to 160 of about 12,547 (208)

Synthesis and Bioactivity Studies of Benzimidazole-Chalcone Hybrids. [PDF]

open access: yesMolecules
Makgoathana HD   +4 more
europepmc   +1 more source

Azodicarboxylates: valuable reagents for the multicomponent synthesis of novel 1,3,4-thiadiazoles and imidazo[2,1-b][1,3,4]thiadiazoles [PDF]

open access: yesTetrahedron, 2013
Abstract Upon reaction of 4,5-disubstituted-N-arylaminoimidazole-2-thiones with isocyanides in the presence of azodicarboxylates (1.2 equiv) at rt, the imidazo[2,1-b][1,3,4]thiadiazoles were formed as the only reaction products in very good yields, whereas by using higher reaction temperatures, along with the imidazo[2,1-b][1,3,4]thiadiazoles, the ...
Tryfon Zarganes-Tzitzikas   +2 more
exaly   +4 more sources

Antiviral 1,3,4-Thiadiazoles

Chemotherapy, 2009
Nine 1,3,4-thiadiazoles showed an antiviral action against Mengo virus; four of them were also active against vaccinia virus and one against fowl plague virus. Investigations with Mengo virus revealed plaque reduction, inhibition of the cytopathic effect and depression of virus multiplication, with the maximum activity after substance addition from 0–2
Marion Tonew, Elke Klimke
openaire   +2 more sources

Synthesis and Reactions of Novel 2,5-Disubstituted 1,3,4-Thiadiazoles [PDF]

open access: yesSynthetic Communications, 2014
The desired 1,3,4-thiadiazole compounds bearing different substituents were obtained by the cyclization of the corresponding thiosemicarbazide followed by the reaction with electrophilic reagents, such as aromatic aldehydes, isatin, phenyl isothiocyanate,
Mahmoud R Mahmoud   +2 more
exaly   +2 more sources

Microwave spectra of 1,3,4-thiadiazole and [34S]1,3,4-thiadiazole. Dipole moment of 1,3,4-thiadiazole

Journal of Molecular Spectroscopy, 1962
Abstract The microwave spectra of 1, 3, 4-thiadiazole (I) and [ 34 S] 1, 3, 4-thiadiazole (II) have been recorded in the 15,000–30,000 Mc/sec region. Twelve and ten transitions, respectively, were assigned. The rotational constants of (I) are, A = 8907.51 ± 0.10, B = 5569.27 ± 0.02, and C = 3424.80 ± 0.03 Mc/sec. For (II), A = 8908.15 ± 0.20,
Børge Bak   +4 more
openaire   +1 more source

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