Results 241 to 250 of about 27,190 (294)
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ChemInform Abstract: A 1,2,3‐THIADIAZOLE‐1,2,3‐THIADIAZOLE REARRANGEMENT
Chemischer Informationsdienst, 1983AbstractAus den Thiadiazolen (I) und (IV) entstehen unter Umlagerung die Diazoverbindungen (II) bzw. (V).
G. L'ABBE, J.‐P. DEKERK, M. DEKETELE
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ChemInform Abstract: 1,2,4‐THIADIAZOLE 20. MITT. 3‐AMINO‐THIADIAZOLE
Chemischer Informationsdienst. Organische Chemie, 1970AbstractSchwefelung der Acylguanidine (I) und anschließende Behandlung mit Wasserstoffperoxid liefern durch dehydrierende Cyclisierung der zunächst gebildeten Thioacylguanidine (II) die Aminothiadiazole (III) mit sehr unterschiedlichen Ausbeuten ( 1‐76%).
JOACHIM GOERDELER, PETER MERTENS
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Chemistry and Biodiversity, 2018
2‐(1‐{4‐[(4‐Methylphenyl)sulfonamido]phenyl}ethylidene)thiosemicarbazide (3) was exploited as a starting material for the synthesis of two novel series of 5‐arylazo‐2‐hydrazonothiazoles 6a – 6j and 2‐hydrazono[1,3,4]thiadiazoles 10a – 10d, incorporating ...
S. Riyadh +4 more
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2‐(1‐{4‐[(4‐Methylphenyl)sulfonamido]phenyl}ethylidene)thiosemicarbazide (3) was exploited as a starting material for the synthesis of two novel series of 5‐arylazo‐2‐hydrazonothiazoles 6a – 6j and 2‐hydrazono[1,3,4]thiadiazoles 10a – 10d, incorporating ...
S. Riyadh +4 more
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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
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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
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Pyridyl‐1,3,4‐thiadiazole; eine neue Variante der Thiadiazol‐Synthese
Helvetica Chimica Acta, 1958AbstractThiosemicarbazones of aromatic aldehydes react with acetic anhydride to give well‐defined N4,S‐diacetyl derivatives, which readily undergo oxidative cyclisation to 2‐aryl‐4‐acetamido‐1,3,4‐thiadiazoles. From these intermediates, aryl‐thiadiazoles – especially 2‐(2′‐pyridyl)‐1,3,4‐thiadiazole, inaccessible by the common methods – can be obtained
P. Hemmerich, B. Prijs, H. Erlenmeyer
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2015
[288-48-2 C2H2N2S (MW 86.12) InChI = 1S/C2H2N2S/c1-2-5-4-3-1/h1-2H InChIKey = UGUHFDPGDQDVGX-UHFFFAOYSA-N (heteroaromatic compound, precursor to thiirenes) Physical Data: bp 98 °C, mp −28 °C. Alternate Name: 2,3-diazathiophene. Handling: compound known to possess potent biological activities in humans.
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[288-48-2 C2H2N2S (MW 86.12) InChI = 1S/C2H2N2S/c1-2-5-4-3-1/h1-2H InChIKey = UGUHFDPGDQDVGX-UHFFFAOYSA-N (heteroaromatic compound, precursor to thiirenes) Physical Data: bp 98 °C, mp −28 °C. Alternate Name: 2,3-diazathiophene. Handling: compound known to possess potent biological activities in humans.
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1965
Publisher Summary 1,2, 4-thiadiazole derivatives have recently found important uses and have attained industrial and economic importance. The syntheses of 1,2,4-thiadiazoles are classified according to the nature of the fragments, from which the heterocyclic ring is built.
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Publisher Summary 1,2, 4-thiadiazole derivatives have recently found important uses and have attained industrial and economic importance. The syntheses of 1,2,4-thiadiazoles are classified according to the nature of the fragments, from which the heterocyclic ring is built.
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2008
This chapter deals with new developments in the field of 1,2,4-thiadiazoles, covering the period 1996–2006, updating CHEC-II(1996). Developments in structure determination, especially X-ray structures, have been reported along with new reactions of both the fully aromatic and reduced ring systems. New examples of established methods of preparation have
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This chapter deals with new developments in the field of 1,2,4-thiadiazoles, covering the period 1996–2006, updating CHEC-II(1996). Developments in structure determination, especially X-ray structures, have been reported along with new reactions of both the fully aromatic and reduced ring systems. New examples of established methods of preparation have
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Chemotherapy, 1974
Three antiviral 1,3,4-thiadiazoles caused, when incubated together with 3H-uridine, a reduction of the incorporation rate into acid-insoluble material of FL cells.
Marion Tonew, Elke Klimke
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Three antiviral 1,3,4-thiadiazoles caused, when incubated together with 3H-uridine, a reduction of the incorporation rate into acid-insoluble material of FL cells.
Marion Tonew, Elke Klimke
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2008
This chapter deals with new developments in the field of 1,2,3-thiadiazoles updating the second edition covering the period 1996 to 2006. Developments in structure determination, especially X-ray structures, have been reported along with new reactions of both the fully aromatic and reduced ring systems.
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This chapter deals with new developments in the field of 1,2,3-thiadiazoles updating the second edition covering the period 1996 to 2006. Developments in structure determination, especially X-ray structures, have been reported along with new reactions of both the fully aromatic and reduced ring systems.
openaire +1 more source