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Ring Transformation of 1,2-Disubstituted 4(1H)-Quinazolone Oximes to 3,5-Disubstituted 1,2,4-Oxadiazoles

✍ Scribed by Korbonits, Dezsó ;Kanzel-Szvoboda, Ida ;Gönczi, Csaba ;Simon, Kálmán ;Kolonits, Pál


Publisher
Wiley (John Wiley & Sons)
Year
1989
Tongue
English
Weight
492 KB
Volume
122
Category
Article
ISSN
0009-2940

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✍ Kalevi Pihlaja; Vladimir Ovcharenko; Hikmet Agirbas 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 56 KB 👁 1 views

The fragmentation behaviour of 3,4-disubstituted 1,2,4-oxadiazole-5(4H)-thiones under electron impact (EI) can be explained by postulating a predominant rearrangement to the corresponding 3,4-disubstituted 1,2,4-thiadiazole-5(4H)-ones before further fragmentation. This postulate is confirmed by a co