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Mass spectrometry of some 2-styryl- and 2,5-distyrylfuran and -thiophene derivatives

✍ Scribed by Grace Karminski-Zamola; Miroslav Bajić; Nikola Blažević

Publisher
John Wiley and Sons
Year
1992
Tongue
English
Weight
295 KB
Volume
27
Category
Article
ISSN
1076-5174

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✦ Synopsis

Abstract

Mass spectra of fourteen 2‐styryl‐ and 2,5‐distyrylfuran and ‐thiophene derivatives are reported. Each styryl substituent has an α‐carboxylic acid or methyl carboxylate substituent. Although the parent ion is the base peak for the styryl and distyryl derivatives, the distyryl species showed less fragmentation than the styryl species. In addition to simple bond cleavages, loss of formic acid or methyl formate was important in many of the species, presumably forming acetylenic fragments.

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✍ Grace Karminski-Zamola; Vesna Tralić-Kulenović; Lelja Fišer-Jakić; Miroslav Baji 📂 Article 📅 1996 🏛 John Wiley and Sons 🌐 English ⚖ 306 KB 👁 1 views

The electron impact mass spectra of some bis-(2-benzothi~lyI)furans and bis-(2-benzothiazolyl)thiophenes have been recorded and the identity of various ions in the mass spectra established. Compounds 1 and 2 present model substances and it is found that their fragmentation pathway is similar to the