Contributions to the study of some heterocycles: LII-Mass spectra of some 3-phenyl-5-( R-thio)1,2,4-triazoles and some thiazolo[3,2- b]-1,2,4-triazoles.

The fragmentation patterns of thiazolotriazoles are in agreement with the individual character of each heterocycle but there are also peaks arising both from their combined influence and from the nature of the substituents in positions 5 and 6. [ABSTRACT FROM AUTHOR]