Mass spectra of some 2- and 4-substitute
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Salvatore Fisichella; Salvatore Occhipinti; Caterina Arnone; Giovanni Consiglio;
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Article
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1983
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John Wiley and Sons
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English
⚖ 286 KB
Following the research work on mass spectra of thiophenic compounds,'-' we report here the electron impact mass spectra at 70eV of some 2-and 4-substituted thiophene-3-carboxylic acids (1-23) with the aim of comparing the fragmentations observed with those of the corresponding 3-substituted thiophen