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The preparation and rearrangements of 3,4-disubstituted 1,2,4-oxadiazoline-5-thiones

✍ Scribed by S�mengen, Dogan; Pelter, Andrew

Book ID
125505185
Publisher
Royal Society of Chemistry
Year
1983
Weight
599 KB
Volume
0
Category
Article
ISSN
1472-7781

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The preparation and rearrangements of 3,
The preparation and rearrangements of 3,4-disubstituted 1,2,4-oxadiazoline-5-thiones
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Disubstituted A2-1 ,2,4-oxadiazoline-5-thiones are prepared by the reaction of N-substituted amidoximes with thiophosgene. Rearrangement, catalysed by either light or metallic copper, yields the corresponding 3,4-disu bstituted A2-I ,2,4-thiadiazolin-5-ones. Preparative Studies.-We have previously

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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