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Reaction of Heterodinuclear μ‐Ethynediyl Complexes Containing Palladium and Platinum: Multiple and Successive Insertion of Isocyanides
Author(s) -
Onitsuka Kiyotaka,
Joh Takashi,
Takahashi Shigetoshi
Publication year - 1992
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.199208511
Subject(s) - isocyanide , palladium , polymerization , platinum , aryl , living polymerization , chemistry , polymer chemistry , molar mass distribution , polymer , medicinal chemistry , organic chemistry , radical polymerization , catalysis , alkyl
The living polymerization of aryl isocyanides has been achieved with the PdPt–ethynediyl complexes 1 . The molecular weight distribution is very narrow for the polymers 2 (n̄ = 10) and 3 (n̄ = 100), and the same end groups as in complex 1 ensure the living nature of the polymerization. If the ratio of isocyanide to 1 is restricted to 2:1, a double‐insertion product can be isolated. R = Et, n Bu; Ar = Ph, 4‐NO 2 C 6 H 4 inter alia.