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Mass Spectral Fragmentation Patterns of Heterocycles. VII. Reinvestigation of Fundamental Processes in Phenothiazines
Electron impact induced fragmentation patterns of simple phenothiazines have been reinvestigated using metastable ion studies, exact mass measuremants and deuterated derivatives.Secondary fragmentation processes involving ions m/e 198, 171, 167, 166, 154, 140 and 139 have been clarified.Mechanisms for the release of sulfur (SH. and CSH.) nitrogen (HCN and H2CN.) containing fragments from phenothiazine molecular ion are proposed based on the deuterium content of the daughter ions obtained from 1,9-dideuteriophenothiazine.A revised mechanism for the expulsion of ketene from 10-acetylphenothiazine is suggested based on the fragmentation pattern of the 1,9-dideuterioderivative.The composition of m/e 140 was determined by high resolution measurement to be C10H6N and not C11H7 as previously reported.
Because enzymes can increase reaction rates by enormous factors and tend to be very specific, Application In Synthesis of 1-Chloro-10H-phenothiazine, typically producing only a single product in quantitative yield, they are the focus of active research.you can also check out more blogs about Application In Synthesis of 1-Chloro-10H-phenothiazine
Reference£º
Thiazine – an overview | ScienceDirect Topics,
Thiazine | C4H5NS – PubChem