Intramolecular Insertion of Acetylene into a Palladium−Carbon Bond in (Iminoacyl)palladium Complexes

An (iminoacyl)palladium complex (3a) prepared from the reaction of methylpalladium complex 1a with o-((trimethylsilyl)ethynyl)phenyl isocyanide (2) undergoes an intramolecular insertion of acetylene at 45 °C in chloroform to give the ((E)-indolidenemethyl)palladium complex 4a quantitatively. The tre...

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Bibliographic Details
Published in:Organometallics 1998-09, Vol.17 (20), p.4335-4337
Main Authors: Onitsuka, Kiyotaka, Segawa, Masaki, Takahashi, Shigetoshi
Format: Article
Language:English
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Summary:An (iminoacyl)palladium complex (3a) prepared from the reaction of methylpalladium complex 1a with o-((trimethylsilyl)ethynyl)phenyl isocyanide (2) undergoes an intramolecular insertion of acetylene at 45 °C in chloroform to give the ((E)-indolidenemethyl)palladium complex 4a quantitatively. The treatment of 3 with AgPF6 followed by Et4NCl at room temperature causes smooth insertion of acetylene, giving the ((Z)-indolidenemethyl)palladium complex 5 as a main product.
ISSN:0276-7333
1520-6041
DOI:10.1021/om9804125