38655-56-0Relevant academic research and scientific papers
Assignment of Isomeric Hydroxyhydantoins: Linked-scan, Tandem and High-resolutions Studies
Onisko, Bruce,Chang, Lydia,Lewis, Sydell
, p. 125 - 131 (2007/10/02)
The mass spectral fragmentation of hydroxyhydantoins was studied by a combination of high-resolution, linked-scan and collisionally activated decomposition (CAD) experiments.The endeavor resulted in the structural assignment of four pairs of synthetic hydroxyhydantoin isomers.A key feature in differentiating 1-methyl-3-aryl-5-hydroxy-2,4-imidazolidinediones from 1-aryl-3-methyl-5-hydroxy-2,4-imidazolidinediones is that under electron ionization (EI) conditions only the 1-methyl-3-aryl-5-hydroxy-2,4-imidazolidinediones yield the +* ion.The analogous +* ion (where Ar is the aryl group) was present in the EI spectra of both isomers and its origins are explained by the linked-scan and CAD experiments performed.
