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Reactions of 4-chloromethyl-1,3,2-dioxathiolane 2-oxides with sodium phenoxide. A reinvestigation

✍ Scribed by Z. A. Bredikhina; A. V. Pashagin; A. A. Bredikhin


Publisher
Springer
Year
2000
Tongue
English
Weight
286 KB
Volume
49
Category
Article
ISSN
1573-9171

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Condensation of methylhydrazine with 4-e
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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