The electron impact mass spectra of several 3,3-dimethyl-1,2-norbornanediols, diamines, amino alcohols and related derivatives have been studied and their fragmentation pathways discussed. Different fragmentation patterns were observed, depending not only on the nature of the substituents, but also
Fragmentation mechanism of dimethyl maleate and fumarate by electron impact
β Scribed by Susumu Tajima; Atsushi Ishiguro; Seiji Tobita
- Publisher
- Elsevier Science
- Year
- 1987
- Tongue
- English
- Weight
- 667 KB
- Volume
- 75
- Category
- Article
- ISSN
- 0168-1176
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Kinetics of oxidation of fumarate, acrylate, cinnamate, and maleate anions by hexavalent manganese has been studied in aqueous alkaline medium. The order in [oxidant] was unity while that in [substrate] was fractional. The order of reactivity of anions is fumarate -+ acrylate --f cinnamate + maleate