Coupling of Alkynes on a Pd−Pd Bond to Generate an Electrophilicμ-Butenediylidene Moiety
- 1 February 2000
- journal article
- research article
- Published by Wiley in Angewandte Chemie International Edition in English
- Vol. 39 (3) , 537-540
- https://doi.org/10.1002/(sici)1521-3773(20000204)39:3<537::aid-anie537>3.0.co;2-s
Abstract
The first dipalladium μ -PPh3 complex (1) was obtained by the facile loss of two CH3CN ligands from [Pd2(PPh3)2(CH3CN)4](PF6)2 in CH2Cl2. Coupling of p-tolylacetylene (p-TolC≡CH) with 1 or its precusor afforded the μ-butenediylidene complex 2, treatment of which with CH3CN resulted in PPh3 migration to give 3.Keywords
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