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Bismuthanes as Hemilabile Donors in an O 2 ‐Activating Palladium(0) Complex
Author(s) -
Materne Karolin,
BraunCula Beatrice,
Herwig Christian,
Frank Nicolas,
Limberg Christian
Publication year - 2017
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201703489
Subject(s) - palladium , xanthene , chemistry , xantphos , ligand (biochemistry) , chelation , catalysis , bismuth , peroxide , medicinal chemistry , combinatorial chemistry , photochemistry , organic chemistry , biochemistry , receptor
A xanthene‐based bismuthane/phosphane chelating ligand has been accessed that has enabled the synthesis of a palladium(0) bismuthane complex. The bismuthane donor proved to be hemilabile as it switched to a dangling position upon addition of O 2 that gave a palladium(II) peroxide complex. Unlike the corresponding 4,5‐bis(diphenylphosphino)‐9,9‐dimethylxanthene (Xantphos) palladium peroxide, the bismuth analogue could be employed for catalytic phosphane oxidation and oxidative phenol coupling.