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Polymerization of acetylenes carrying precursors of aminyl radicals

✍ Scribed by Lothar Dulog; Peter Bognar

Publisher
John Wiley and Sons
Year
1995
Tongue
English
Weight
152 KB
Volume
16
Category
Article
ISSN
1022-1336

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✦ Synopsis

Abstract

In the search for organic ferromagnets polymers with a conjugated backbone and pendant persistent radicals are one route of interest. The synthesis of poly[4‐(4‐ethynylphenyl)‐2′,4′,6′‐trinitro‐2,6‐diphenyldiphenylamine] (p‐3) and poly[4‐(3‐ethynylphenyl)‐2′,4′,6′‐trinitro‐2,6‐diphenyldiphenylamine] (m‐3) as precursors of polyradicals are described. A dinuclear rhodium cyclooctadiene chloride complex as polymerization catalyst was used to yield polymers with molecular weights (gel‐permeation chromatography) of 100 000 for m‐3 and 210 000 for p‐3.

📜 SIMILAR VOLUMES

Sulfanyl radical mediated cyclization of
Sulfanyl radical mediated cyclization of aminyl radicals
✍ Pier Carlo Montevecchi; Maria Luisa Navacchia 📂 Article 📅 1998 🏛 Elsevier Science 🌐 French ⚖ 237 KB

l-(2-Aminophenyl)pent-l-yne 1 reacted with benzenethiol at 150 °C under radical conditions to give the thiol/alkyne adduct 2, the benzothiophene 4 and the indole 5. Reaction of l with henzenesulfanyl radicals produced from diphenyl disulfide in the absence of hydrogen donors gave only the indole 5 i