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Effect op protonation of 2,2′-dithienyl carbonyl compounds on the direction of substitution during nitration

✍ Scribed by A. V. Zimichev; A. E. Lipkin; T. M. Safargalina

Book ID
112335541
Publisher
Springer US
Year
1977
Tongue
English
Weight
357 KB
Volume
13
Category
Article
ISSN
0009-3122

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✍ Roman Buchtík; Jan Hlaváč; Jan Slouka; Petr Fryčák 📂 Article 📅 2004 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 117 KB 👁 1 views

## Abstract In the article the study of cyclocondensation of 3‐[2‐amino‐3‐(3,5‐dioxo‐2,3,4,5‐tetrahydro[1,2,4]‐triazme‐6‐yl)phenyl]‐2,3‐dihydro‐quinoxalin‐2‐one **5** is described and it was found, that the reaction does not proceed by both possible directions, but only cyclization with the carbony