抄録
The mass spectra of 3-dimethylaminomethylcyclohexanol derivatives (1-5) were measured under a direct inlet system by electron impact ionization, and their characteristic fragmentations are discussed. The characteristic ions in the mass spectra of 1-5 are the fragment ions at m/z 58, m/z 71, m/z 72, m/z 111 and m/z 156. The characteristic peak at m/z 58 is the base peak in the mass spectra of all compounds. The structure of this ion appears to be CH2=N+(CH3)2. The cis-and trans-configurations of 1-5 can be identified by observing the peak intensities at m/z 71, m/z 72 and m/z 156 in the mass spectra and by observing the peak corresponding to loss of a hydrogen molecule from the m/z 84 ion in the ion kinetic energy (IKE) spectra.
