Abstract
A convenient one-pot procedure for the preparation of pyrazoles by 1,3-dipolar cycloaddition of diazo compounds generated in situ has been developed. Diazo compounds derived from aldehydes were reacted with terminal alkynes to furnish regioselectively 3,5-disubstituted pyrazoles. Furthermore, the reaction of N-vinylimidazole and diazo compounds derived from aldehydes gave exclusively 3-substituted pyrazoles in a one-pot process.
| Translated title of the contribution | 'A Novel One-pot Method for the Preparation of Pyrazoles by 1,3-Dipolar Cycloadditions of Diazo Compounds Generated in situ' |
|---|---|
| Original language | English |
| Pages (from-to) | 5381-5383 |
| Number of pages | 3 |
| Journal | Journal of Organic Chemistry |
| Volume | 68 |
| Issue number | 13 |
| DOIs | |
| Publication status | Published - 27 Jun 2003 |
Research Groups and Themes
- Organic & Biological
Keywords
- ASYMMETRIC-SYNTHESIS
- DIAZOALKANES
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