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

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書誌詳細
主要な著者:	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.
フォーマット:	Статья
言語:	English
出版事項:	Springer 2020
主題:	1,3,4-oxadiazoles 1,3,4-thiadiazoles Bronsted acid catalysis Cascade reaction Nitroalkanes Nucleophilic cycloadition Semicarbazides Thiosemicarbazides
オンライン･アクセス:	https://dspace.ncfu.ru/handle/20.500.12258/14299
タグ:	タグ追加タグなし, このレコードへの初めてのタグを付けませんか!

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