Open AccessIdentification and analysis of N-alkyl-N’-arylalkylureas by nuclear magnetic resonance
Author(s) -
А. А. Бакибаев,
М.Zh. Sadvakassova,
Р. Ш. Еркасов,
А.Е. Аtagulova
Publication year - 2020
Publication title -
l.n. gumilev atyndaġy euraziâ u̇lttyk̦ universitetìnìn̦ habaršysy. himiâ, geografiâ, èkologiâ seriâsy
Language(s) - English
Resource type - Journals
eISSN - 2617-9962
pISSN - 2616-6771
DOI - 10.32523/2616-6771-2020-130-1-18-22
Subject(s) - alkyl , chemical shift , chemistry , nitrogen , nuclear magnetic resonance , carbon 13 nmr , spectral line , nuclear magnetic resonance spectroscopy , organic chemistry , physics , astronomy
This paper presents the results that allow one to reliably identify N-alkyl- (10 compounds) and N-alkyl-N’- arylalkylureas (12 compounds) based on the data of 1H and 13C nuclear magnetic resonance (NMR) methods. A systematic analysis has been carried out of chemical shifts in the NMR spectra of the compounds. Additionally, the authors have investigated the effect of the nitrogen atoms substituents on the chemical shifts in the NH2, NH, and C = O groups of urea.