Gold(I) complexes with multifunctional phosphane ligands: Synthesis and catalysis

[Display omitted] •Two novel gold(I) complexes with functionalized phosphane ligands have been prepared and characterized.•The 1,3-iminophosphane ligand supports oxidative addition of a CC bond to gold(I).•The novel gold(I) complexes exhibit catalytic activity in model alkyne hydroamination and hydr...

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Bibliographic Details
Published in:Inorganica Chimica Acta 2021-03, Vol.517, p.120218, Article 120218
Main Authors: Biffis, Andrea, Baron, Marco, Tubaro, Cristina, Rancan, Marzio, Armelao, Lidia, Marchenko, Anatoliy, Koidan, Georgyi, Hurieva, Anastasiia N., Kostyuk, Aleksandr
Format: Article
Language:English
Subjects:
Alkyne
Cations
Chemical synthesis
Coordination compounds
Gold
Hydroamination
Hydroarylation
Ligands
Mesitylene
Oxidative addition
Phosphane
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Summary:[Display omitted] •Two novel gold(I) complexes with functionalized phosphane ligands have been prepared and characterized.•The 1,3-iminophosphane ligand supports oxidative addition of a CC bond to gold(I).•The novel gold(I) complexes exhibit catalytic activity in model alkyne hydroamination and hydroarylation reactions. Two novel gold(I) complexes with a phosphoguanidine ligand and with a novel cationic phosphane ligand have been prepared and structurally characterized. The phosphoguanidine ligand supports oxidative addition of biphenylene to the gold(I) centre, though the yield of the reaction is low. The phopshoguanidine gold(I) complexes is also able to efficiently catalyze the hydroamination of phenylacetylene with mesitylamine, whereas the gold(I) complex with the cationic phosphane ligand, due to its more electron-poor character, promotes the hydroarylation of ethyl propiolate with mesitylene.
ISSN:0020-1693
1873-3255
DOI:10.1016/j.ica.2020.120218