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Unusual rearrangement in electrophilic acylation of alkynes

✍ Scribed by A. A. Shchegolev; R. Kepl; V. A. Smit; V. F. Kucherov

Book ID
112440350
Publisher
Springer
Year
1975
Tongue
English
Weight
51 KB
Volume
24
Category
Article
ISSN
1573-9171

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O-2-(Acyl)vinylketoximes (freshly prepared from ketoximes and acylacetylenes in the presence of Ph 3 P as catalyst in up to 83% yields) rearrange upon heating (125-150 Β°C) to give 2-or 3-acylpyrroles, wherein the positions of the acyl substituents do not correspond to known O-vinyloxime rearrangemen