Preparation of 1,3,4-oxadiazoles and 1,3,4-thiadiazoles via chemoselective сyclocondensation of electrophilically activated nitroalkanes to (thio)semicarbazides or thiohydrazides
Unusual reaction proceeding via the electrophilic activation of nitroalkanes in the presence of polyphosphoric acid has been discovered. Subsequent nucleophilic attack with semicarbazides or thiosemicarbazides allows to access 2-amino-1,3,4-oxadiazoles and 2-amino-1,3,4-thiadiazoles, respectively
Spremljeno u:
| Glavni autori: | , , , , , , , , , , , |
|---|---|
| Format: | Статья |
| Jezik: | English |
| Izdano: |
Springer
2020
|
| Teme: | |
| Online pristup: | https://dspace.ncfu.ru/handle/20.500.12258/14299 |
| Oznake: |
Dodaj oznaku
Bez oznaka, Budi prvi tko označuje ovaj zapis!
|