Analysis of 2-methyl-4(s)-isopropyl-2-oxazoline oxidation reaction products with ESI-TOF method

The main products of the chiral 2-methyl-4(S)-isopropyl-2-oxazoline oxidation with urea-hydrogen peroxide combination in the presence of MeReO3 is the corresponding ring-opened N-(2-hydroxiehtyl)acetamide. ESI-TOF mass-spectrometric analysis was used to identify this product in the complex reaction mixture. The main ion in MS-spectra corresponds to its dimmer with losing of water molecule.