MASS SPECTROMETRY OF METHYLTETRAZOLES

The mass spectra of tetrazole, all isomers of monomethyl‐ and dimethyltetrazole, several trifluoromethyl substituted tetrazoles, as well as deuterated analogs, were recorded. Loss of N2 was the important fragmentation of the molecular ions of tetrazole and 2‐methyl substituted tetrazoles; however, HN2 loss was more important for 1‐methyl substituted tetrazoles. The 1‐methyl‐tetrazoles showed molecular ion peaks while the 2‐methyltetrazoles exhibited an unprecedented [M + 1] peak with no molecular ion. Copyright © 1969 John Wiley & Sons, Ltd.