Abstract
1. 4-Amino-5-acetylenylpyrazoles are capable of isomerizing in the presence of Cu(I) salts, with closure of the pyrrole ring and formation of the condensed pyrrolo[3,2-c]pyrazole system. 2. The 5-amino-4-acetylenylpyrazoles, in contrast to the 4-amino-5-acetylenyl derivatives, and also the o-acetylenylanilines, do not cyclize under analogous conditions.
| Original language | English |
|---|---|
| Pages (from-to) | 626-628 |
| Number of pages | 3 |
| Journal | Bulletin of the Academy of Sciences of the USSR Division of Chemical Science |
| Volume | 32 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 1 Mar 1983 |
| Externally published | Yes |
ASJC Scopus subject areas
- Chemistry(all)
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Cite this
Vasilevskii, S. F., Anisimova, T. V., & Shvartsberg, M. S. (1983). Cyclization of vicinal acetylenylaminopyrazoles. Bulletin of the Academy of Sciences of the USSR Division of Chemical Science, 32(3), 626-628. https://doi.org/10.1007/BF00953123