Preparation of 1,3,4-oxadiazoles and 1,3,4-thiadiazoles via chemoselective сyclocondensation of electrophilically activated nitroalkanes to (thio)semicarbazides or thiohydrazides

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

Αποθηκεύτηκε σε:

Λεπτομέρειες βιβλιογραφικής εγγραφής
Κύριοι συγγραφείς:	Aksenov, N. A., Аксенов, Н. А., Arutiunov, N. A., Арутюнов, Н. А., Kirilov, N. K., Кирилов, Н. К., Aksenov, D. A., Аксенов, Д. А., Aksenov, A. V., Аксенов, А. В., Rubin, M. A., Рубин, М. А.
Μορφή:	Статья
Γλώσσα:	English
Έκδοση:	Springer 2020
Θέματα:	1,3,4-oxadiazoles 1,3,4-thiadiazoles Bronsted acid catalysis Cascade reaction Nitroalkanes Nucleophilic cycloadition Semicarbazides Thiosemicarbazides
Διαθέσιμο Online:	https://dspace.ncfu.ru/handle/20.500.12258/14299
Ετικέτες:	Προσθήκη ετικέτας Δεν υπάρχουν, Καταχωρήστε ετικέτα πρώτοι!

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