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A novel rearrangement reaction in doubly charged ion mass spectra of acetophenone derivatives

✍ Scribed by Hiroshi Sakurai; Akira Tatematsu; Hisao Nakata

Publisher
John Wiley and Sons
Year
1973
Tongue
English
Weight
131 KB
Volume
7
Category
Article
ISSN
1076-5174

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πŸ“œ SIMILAR VOLUMES

Formation of doubly charged ions in fiel
Formation of doubly charged ions in field ionization mass spectra of para substituted acetophenones
✍ A. I. Helal; Nagwa F. Zahran πŸ“‚ Article πŸ“… 1979 πŸ› John Wiley and Sons 🌐 English βš– 159 KB

he doubly charged [MI\*+, [M+1I2+ and [M-O]'+ ions are observed in the field ionhtion mass spectra of para substituted acetophenones. "he effect of the type of the substituent on the formation of the doubly charged ions is described.

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The positive and negative ion mass spectra of clausmarin A, a naturally occurring tetracyclic conmarin, have been studied. The base peaks in the positive and negative ion spectra correspond to the complementary ions at mlz 143 and mlz 255, respectively, formed by a rearrangement reaction. The fragme