Gas-phase reactivity of protonated 2-oxazoline derivatives: mass spectrometry and computational studies - Vessecchi, Ricardo; Tomaz, José Carlos; Santos, Guilherme Purcote dos; Oliveira, Alfredo R. Marques de; Lopes, Norberto Peporine; Clososki, Giuliano Cesar (Rapid Communications in Mass Spectrometry, 2012)