Formal Aryne/Carbon Monoxide Copolymerization To Form Aromatic Polyketones/Polyketals

Autor: Katsuyuki Nishimura, Kyoko Nozaki, Shingo Ito, Wenhan Wang
Rok vydání: 2015
Předmět:
Zdroj: Macromolecules. 48:1959-1962
ISSN: 1520-5835
0024-9297
DOI: 10.1021/acs.macromol.5b00315
Popis: A palladium-catalyzed alternating copolymerization of [2.2.1]oxabicyclic alkenes 1 with carbon monoxide afforded isomer mixtures of polyketones 2ktn and polyketals 2ktl. Subsequent acid-induced dehydration of polymer 2 furnished novel aromatic polymers consisting of polyketones 3ktn and polyketals 3ktl units. This formal aryne/carbon monoxide copolymerization thus generated the first example of poly(aryne-alt-carbon monoxide)s, in which o-arylene and carbonyl units are incorporated in an alternating fashion.
Databáze: OpenAIRE