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Synthesis of 1,2,3-thiadiazole-5-carbaldehydes and their conversion into 6aδ4-Thia-1,2,5,6-tetraazapentalenes

✍ Scribed by Gerrit L'Abbé; Ann Frederix

Book ID
112129716
Publisher
Journal of Heterocyclic Chemistry
Year
1990
Tongue
English
Weight
240 KB
Volume
27
Category
Article
ISSN
0022-152X

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Reactions of fused dihydro-1,2,4-thiadia
Reactions of fused dihydro-1,2,4-thiadiazoles with isocyanates and isothiocyanates to give 6aλ4-thia-1,3,4,6-tetraazapentalene derivatives
✍ Long-Li Lai; David H. Reid; Robin H. Nicol; Jane B. Rhodes 📂 Article 📅 1994 🏛 John Wiley and Sons 🌐 English ⚖ 710 KB

## 3-Methy1-6,7-dihydrc~-SH-l, 2,4-th iadiazolo[4,5-a] pyrimidine 4a reacted with isocyanates and isothiocyanates with elimination of acetonitrile and concomitant addition of two molecules of the heterocumubne togive the2,3-disubstituted-6,7-dihydro-SH-2ah4-thia-2, 3, 4a, ia-tetraazacyclopent[cd]