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Electrophilic condensation of 1-hydroperfluoropropylene and 1-hydroperfluoro-1-butene with fluoroethylenes

✍ Scribed by V. A. Petrov; G. G. Belen'kii; L. S. German

Book ID
112445230
Publisher
Springer
Year
1982
Tongue
English
Weight
214 KB
Volume
31
Category
Article
ISSN
1573-9171

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## Abstract In contrast to previous reports, 4‐ethoxy‐1,1,1‐trifluoro‐3‐buten‐2‐one (**1**) was observed to react with methylhydrazine (**2**) in refluxing ethanol to yield 1‐methyl‐3‐(trifluoromethyl)pyrazole (**6**) and 4,5‐dihydro‐1‐methyl‐5‐(trifluoromethyl)pyrazol‐5‐ol (**4**). The later compo