A THEORETICAL AND EXPERIMENTAL-STUDY OF THE FLASH VACUUM PYROLYSIS (FVP) OF TRIFLUOROMETHYLPYRAZOLES

Authors
PEREZ JD YRANZO GI DEPAZ JLG ELGUERO J
Citation
Jd. Perez et al., A THEORETICAL AND EXPERIMENTAL-STUDY OF THE FLASH VACUUM PYROLYSIS (FVP) OF TRIFLUOROMETHYLPYRAZOLES, Journal of fluorine chemistry, 63(3), 1993, pp. 271-279
Citations number
17
Categorie Soggetti
Chemistry Inorganic & Nuclear","Chemistry Inorganic & Nuclear
Journal title
Journal of fluorine chemistry → ACNP
ISSN journal
00221139
Volume
63
Issue
3
Year of publication
1993
Pages
271 - 279
Database
ISI
SICI code
0022-1139(1993)63:3<271:ATAEOT>2.0.ZU;2-E
Abstract
Flash vacuum experiments have been carried out on 3(5)-trifluoromethyl -5(3)-methylpyrazole and 3,5-bis(trifluoromethyl)pyrazole. In both cas es, the reaction proceeds with elimination of nitrogen and the formati on of complex mixtures of fluorinated olefins and acetylenes. The Arrh enius parameters have been determined and discussed. The first step of the reaction, a pyrazole/pyrazolenine tautomerization process, has be en calculated theoretically (STO-3G).