Title: Observation of binuclear palladium clusters upon ESI-MS monitoring of the Suzuki–Miyaura cross-coupling catalyzed by a dichloro-bis(aminophosphine) complex of palladium
Authors : Agrawal, Divya
Schröder, Detlef
Frech, Christian M.
Published in : Organometallics
Volume(Issue) : 30
Issue : 13
Pages : 3579
Pages to: 3587
Publisher / Ed. Institution : American Chemical Society
Issue Date: 2011
License (according to publishing contract) : Licence according to publishing contract
Type of review: Peer review (Publication)
Language : English
Subject (DDC) : 540: Chemistry
Abstract: Electrospray ionization mass spectrometry (ESI-MS) is used for monitoring the progress of the Suzuki–Miyaura cross-coupling reaction between bromobenzene and arylboronic acids using a palladium dichloro-bis(aminophosphine) complex as a precatalyst. The ESI-MS studies demonstrate that initiation of the catalytic reaction requires the presence of a base and that the selectivity for cross-coupling is favorable at elevated temperatures. Interestingly, after completion of the coupling reaction, the palladium is present as a dinuclear Pd0/PdII cluster, which still acts as an active catalyst when a new aliquot of reactants is added to the reaction mixture.
Departement: Life Sciences and Facility Management
Publication type: Article in scientific Journal
DOI : 10.1021/om200274z
ISSN: 0276-7333
URI: https://digitalcollection.zhaw.ch/handle/11475/9851
Appears in Collections:Publikationen Life Sciences und Facility Management

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