Synthesis and reactivity of palladium hydrido-solvento complexes, including a key intermediate in the catalytic methoxycarbonylation of ethene to methyl propanoate

Autor:	Mark R. J. Elsegood, Robin Whyman, Robert P. Tooze, Stefano Zacchini, Brian T. Heaton, William Clegg, Jonathan A. Iggo, Graham R. Eastham
Rok vydání:	2002
Předmět:	Denticity Stereochemistry chemistry.chemical_element Palladium hydride General Chemistry Crystal structure Benzoquinone Medicinal chemistry Catalysis chemistry.chemical_compound Sulfonate chemistry Reactivity (chemistry) Palladium
Zdroj:	Journal of the Chemical Society, Dalton Transactions. :3300-3308
ISSN:	1364-5447 1472-7773
Popis:	The sequence of reaction steps and the role of each reactant, required for the transformation of the Pd(0) precursor [Pd(dtbpx)(dba)] [dtbpx = 1,2-(CH2PBut2)2C6H4; dba = trans,trans-(PhCHCH)2CO], 1, into [Pd(dtbpx)H(MeOH)]+, 2a, the active Pd(II)-hydride catalyst for the methoxycarbonylation of ethene to methylpropanoate, have been delineated using a combination of spectroscopic and crystallographic methods. The preparation and characterisation of a variety of related complexes are described including some unusual examples involving bidentate sulfonate complexes and mono-cationic and neutral palladium hydride complexes. X-Ray crystal structures have been determined for [Pd(dtbpx)(η2-O2)], 3, [Pd(dtbpx)(η2-BQ)] (BQ = benzoquinone), 4, [Pd(dcpx)(dbaH)]+ [dcpx = 1,2-(CH2PCy2)2C6H4], 7, and [Pd(dtbpx)(η2-MeSO3)]+, 9b.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::092ef56e65117b556c98f38a2b897a2b https://doi.org/10.1039/b202372p Zobrazit plný text záznamu