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Reactions of 2-diazo-3-butanone and 2-diazocyclopentanone with dimethyl acetylenedicarboxylate

✍ Scribed by Katner, A. S.


Book ID
126969650
Publisher
American Chemical Society
Year
1973
Tongue
English
Weight
267 KB
Volume
38
Category
Article
ISSN
0022-3263

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Reactions of 2-Unsubstituted 1H-Imidazol
✍ Grzegorz MlostoΕ„; Tomasz Gendek; Heinz Heimgartner πŸ“‚ Article πŸ“… 2000 πŸ› Elsevier Science 🌐 French βš– 145 KB

AbstractÐReaction of 2-unsubstituted 1H-imidazole 3-oxides with isocyanates, isothiocyanates, and dimethyl acetylenedicarboxylate led to the formation of 2-functionalized imidazole derivatives. Stepwise reaction mechanisms via zwitterionic intermediates are proposed. The intermediate [312] cycloaddu