Features of the First and Second Order Electrospray Ionization Mass Spectra for Salt-Like Products Derived from Monools and Diols Using Combined Reagents Based on ω-Bromoacyl Chlorides and Nitrogen Bases

Derivatization by composite reagents based on ω-bromoacyl chlorides [ClCO(C2)nBr (n = 1–4)] and pyridine was applied to study aliphatic and alicyclic alcohols and diols by ordinary and tandem electrospray ionization (ESI) mass spectrometry. The applied derivatization involves the simultaneous acylation of hydroxyl groups with an acyl chloride moiety and the quaternization of pyridine with a terminal bromoalkyl group. Under the ESI conditions, quaternary salts produce corresponding mono and diammonium cations, which are detected in the first-order mass spectra. Collision-induced dissociation (CID) of primary cations generated from monool derivatives gives rise to ammonium cations of the corresponding acids HOOC(CH2)n–N+(C5H5). The CID of primary dications affords the same cations which are also eliminated from dications to form mono-charged fragments. © 2017, Pleiades Publishing, Ltd.

Номер выпуска
14
Язык
Английский
Страницы
1383-1389
Статус
Опубликовано
Том
72
Год
2017
Организации
  • 1 Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Moscow, 119991, Russian Federation
  • 2 People’s Friendship University of Russia (RUDN University), Moscow, 117198, Russian Federation
Ключевые слова
diols; electrospray ionization; first and second order mass spectra; monools; pyridine; steroid alcohols; ω- bromoacyl chlorides
Дата создания
19.10.2018
Дата изменения
19.10.2018
Постоянная ссылка
https://repository.rudn.ru/ru/records/article/record/5161/