Heterocyclopolyaromaten, IX. 4,4‴,6,6‴-Tetraazahexa-m-phenylen und 4,4′,4‴,4′‴,6,6′,6‴,6′‴-Octaazahexa-m-phenylen
✍ Scribed by Muke, Bernd ;Kauffmann, Thomas
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 1980
- Tongue
- English
- Weight
- 562 KB
- Volume
- 113
- Category
- Article
- ISSN
- 0009-2940
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## Abstract Der thermische Abbau von Poly(oxy‐1,4‐phenylen), Poly(thio‐1,4‐phenylen) und Poly(dithio‐1,4‐phenylen) wurde durch direkte Pyrolyse in der Ionenquelle des Massenspektrometers untersucht. Bei verringerter Elektronenenergie (15 eV) konnten die elektronenstoßinduzierten Fragmentierungen d
## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access the actual ChemInform Abstract, please click on HTML or PDF.
A series of new 4,4 -(1,4-phenylene)dipyrimidines 5a-c, 8a-c, and 10a,b have been synthesized from the reaction of amidines 1a-c with the dienaminone 2, bis-chalcone 6, or ylidenemalononitrile 9. The reaction of malononitrile and ethyl cyanoacetate with 2 gave 6,6 -(1,4-phenylene)di(pyridin-2(1H)-on