Mass-spectral Fragmentation of 3-(5-Nitro-2-furyl)-1,2,4-triazoles
نویسندگان
چکیده
منابع مشابه
Statistical analysis on toxicity of a nitrofuran derivative, 2-(2-furyl)-3-(5-nitro-2-furyl)acrylamide.
A food additive, furylfuramide or AF-2, which had been used in Japan since 1965 and structurally is composed of 5-nitro-2-furyl radical and acrylamide, was re-examined mainly on chronic toxicity by statistically reviewing published data. The conclusions are as follows: 1) The maximum safety dosage which shows no demonstrable change in rats must be corrected at least to 1/170 of the value which ...
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Wittig reaction has recently been applied also in the preparation of 5-nitrofuran derivatives of ethylene [1—5]. The quoted syntheses were accomplished starting either from 5-nitrofurfuryl halides which were converted into 5-nitrofurfurylidenephosphoranes and subsequent condensation of the latter with carbonyl compounds [1—4], or the intermediate phosphoranes were prepared from other furfuryl h...
متن کاملThe production of hemangioendothelialsarcoma in rats by feeding 5-acetamido-3-(5-nitro-2-furyl)-6H-1,2,4-oxadiazine.
Thirty-five female Sprague-Dawley weanling rats were fed 5-acetamido-3-(5-nitro-2-furyl)-6H-l ,2,4-oxadiazine for 37 weeks. All 32 rats surviving 28 weeks or more developed hemangioendothelialsarcomas at one or more sites. These unusual tumors were located in the livers of 31 rats, in the mesentery of 30 rats, and in the lungs of 5 rats. Nine rats developed alveolar carcinomas, and 1 rat develo...
متن کاملRelationships between the carcinogenic and mutagenic or DNA-modifying effects of nitrofuran derivatives, including 2-(2-furyl)-3-(5-nitro-2-furyl)acrylamide, a food additive.
of the 27 nitrofuran derivatives tested had mutagenic effects on E. coli, but none of them had mutagenic effects on S. typhimurium. Twenty-five compounds had DNA-modifying effects on E. coli, and 24 compounds had effects on the DNA of S. typhimurium. Fifteen of the 27 compounds are known to be carcinogenic. Fourteen of these 15 carcinogenic derivatives had mutagenic effects on E. coli and DNA-m...
متن کاملAntiprotozoal thiazoles. 2. 2-(5-Nitro-2-furyl-, thiazolyl-, and 1-methylimidazolyl-)thiazoles.
Ten 2-substituted 4-thiazolecarboxaldehyde hydrazones bearing 5-nitro-2-furyl, 5-nitro-2-thiazolyl, and 1-methyl-5-nitro-2-imidazolyl functions have been prepared and screened for activity against Trypanosoma cruzi infections in mice. The results permitted the ranking of these substituents in decreasing order of activity: 1-methyl-5-nitro-2-imidazolyl greater than 5-nitro-2-furyl greater than 5...
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ژورنال
عنوان ژورنال: Bulletin of the Chemical Society of Japan
سال: 1972
ISSN: 0009-2673,1348-0634
DOI: 10.1246/bcsj.45.1876