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Spiroheterocyclic Systems, I: Spiroheterocycles Related to 1-Oxa-4-thiaspiro[4,4]nonan-2-one and 1-Oxa-4-thiospiro[4,5]decan-2-one. Spiroheterocyclische Systeme, 1. Mitt.: Mit 1-Oxa-4-thiaspiro[4,4]nonan-2-on und 1-Oxa-4-thiaspiro[4,5]decan-2-on verwandte Spiroheterocyclen

โœ Scribed by Maher F. El-Zohry; Ibrahim M. A. Awad; Ali A. Abdel-Hafez


Publisher
John Wiley and Sons
Year
1993
Tongue
English
Weight
240 KB
Volume
326
Category
Article
ISSN
0365-6233

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The fragmentation behaviour of ten 3,4-disubstituted 1,2,4-oxadiazole-5(4H)-thiones and seven 3,4-disubstituted 1,2,4-thiadiazole-5(4H)-ones studied here confirmed the earlier observations about the partial rearrangement of the former after ionization into the latter before further fragmentation. In