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Synthesis and molecular structure of 5-(1-aminoisoindolenin-3-ylidene-amino)-1,3,4-thiadiazole-2(3H)-thione

✍ Scribed by O. V. Shishkin; E. V. Kudrik; M. K. Islyaikin; A. V. Lyubimtsev; S. A. Siling


Publisher
Springer
Year
1998
Tongue
English
Weight
381 KB
Volume
47
Category
Article
ISSN
1573-9171

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ChemInform Abstract: Synthesis and Molec
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Synthesis and Molecular Structure of 5-(1-Aminoisoindolenin-3ylideneamino)-1,3,4-thiadiazole-2(3H)-thione. -During recrystallization of the macrocyclic compound (I), a hydrolytic cleavage occurs to afford the title compound (II) containing an isoindole and a thiadiazole cycle. This compound (II) is

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Reaction of 4H-3.1-benzothiazine-4-lhiones 1 with S-methylisothiosemicarbazide hydroiodide yields bamino-1.3.4-thiadiazoles 2 insteud of the espected 1.2,4-triazolo[3,2-c]quinazolines. Structures of compounds 2 have been established by mcans of '>C-N M R analysis and X-ray crystallography. 3-Arnino-