Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 60, Issue 13, Pages 6879-6889Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.202011031
Keywords
alkynes; catalysis; diazonium ion; triazenes; vinyl cation
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Funding
- Swiss National Science Foundation
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Recent developments have revealed that vinyl and alkynyl triazenes are highly interesting compounds with unique reactivity, enabled by the electron-donating properties of the triazenyl group. These compounds can be prepared in few steps from readily available starting materials, making them a promising area of study in synthetic organic and medicinal chemistry.
Aromatic compounds containing triazenyl groups (N3RR ') have a profound impact on synthetic organic and medicinal chemistry. In contrast, the chemistry of vinyl and alkynyl triazenes was a largely uncharted territory until recently. The situation has changed over the last five years, and it has become apparent that vinyl and alkynyl triazenes are highly interesting compounds with a unique reactivity. The electron-donating properties of the triazenyl group provide alkynyl triazenes with an ynamide-like reactivity, which can be exploited in reactions of the triple bond. Vinyl triazenes, on the other hand, can be used for electrophilic vinylation reactions. The foundation for this new triazene chemistry are synthetic pathways which allow preparing vinyl and alkynyl triazenes in few steps from readily available starting materials. In this Minireview, we summarize recent developments in this area.
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