A new approach to the synthesis of functionalized 1-alkenyl-1H-1,2,3-triazoles
✍ Scribed by Dorota Sikora; Tadeusz Gajda
- Publisher
- Elsevier Science
- Year
- 1998
- Tongue
- French
- Weight
- 544 KB
- Volume
- 54
- Category
- Article
- ISSN
- 0040-4020
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✦ Synopsis
~bstiuctz The Homer-Wadsworth-Emmons (HWE) olefination of l-[(dietboxyphosphoryl)methyl]-4,5-bis(methoxycarbonyl> lH-1,2,3-triazole and l-[(diethoxyphosphoryl)metbyl]-Sphenyl-1 H-1,2,3triazole by means of aldehydes was found to be a convenient method for the preparation of functionalized 1-alkenyl-lH-1,2,3-triazoles in moderate to good yields and low Z/E stereoselectivity.
📜 SIMILAR VOLUMES
## Abstract Aryl azides **1** were treated with allenylmagnesium bromide (**2**) to generate 1,5‐disubstituted butynyl‐1__H__‐1,2,3‐triazoles **3** in a domino fashion, which upon Cu^I^‐catalyzed 1,3‐dipolar cycloaddition with aryl azides **4** afforded novel bis‐1__H__‐1,2,3‐triazoles **5** in qua
## Abstract The reactive 1 : 1 zwitterionic intermediate formed by the addition of isocyanides to dialkyl acetylenedicarboxylates was trapped with 4‐arylurazoles to produce the highly functionalized pyrazolo[1,2‐__a__][1,2,4]triazoles **5** in good yields (__Table__). The structures of the products