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The mass spectra of 1,2,4-triazines and related compounds

โœ Scribed by M. H. Palmer; P. N. Preston; M. F. G. Stevens


Publisher
John Wiley and Sons
Year
1971
Tongue
English
Weight
318 KB
Volume
5
Category
Article
ISSN
1076-5174

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## Abstract The mass spectra of 23 chromone derivatives are recorded and interpreted. Most of these are ethyl 4โ€oxochromenโ€2โ€carboxylate derivatives, which with two exceptions, show the molecular ion as the base peak. In the spectrum of the unsubstituted ester (XVIII), the other most important frag