Herrmann's catalyst is an organopalladium compound that is a popular catalyst for the Heck reaction. It is a yellow air-stable solid that is soluble in organic solvents. Under conditions for catalysis, the acetate group is lost and the Pd-C bond undergoes protonolysis, giving rise to a source of "PdP(o-tol)3".
Many analogues of Hermann's catalyst have been developed, e.g. palladacycles obtained from 2-aminobiphenyl.[2]
References
^Herrmann, W. A.; Brossmer, C.; Reisinger, C.-P.; Riermeier, T. H.; Öfele, K.; Beller, M. (1997). "Palladacycles: Efficient New Catalysts for the Heck Vinylation of Aryl Halides". Chemistry – A European Journal. 3: 1357–1364. doi:10.1002/chem.19970030823.
^Bruneau, A.; Roche, M.; Alami, M.; Messaoudi, S. (2015). "2-Aminobiphenyl Palladacycles: The "Most Powerful" Precatalysts in C–C and C–Heteroatom Cross-Couplings". ACS Catalysis. 5: 1386–1396. doi:10.1021/cs502011x.
January 05, 2023
herrmann, catalyst, organopalladium, compound, that, popular, catalyst, heck, reaction, yellow, stable, solid, that, soluble, organic, solvents, under, conditions, catalysis, acetate, group, lost, bond, undergoes, protonolysis, giving, rise, source, identifier. Herrmann s catalyst is an organopalladium compound that is a popular catalyst for the Heck reaction It is a yellow air stable solid that is soluble in organic solvents Under conditions for catalysis the acetate group is lost and the Pd C bond undergoes protonolysis giving rise to a source of PdP o tol 3 Herrmann s catalyst IdentifiersCAS Number 172418 32 5ChemSpider 10136140PubChem CID 15978061UNII 0K4FY6KS4NCompTox Dashboard EPA DTXSID40704833PropertiesChemical formula C 46H 46O 4P 2Pd 2Molar mass 937 66 g mol 1Appearance yellow solidMelting point 123 125 CExcept where otherwise noted data are given for materials in their standard state at 25 C 77 F 100 kPa Infobox references The complex is made by reaction of tris o tolyl phosphine with palladium II acetate 1 2 Pd OAc 2 2 P C6H4 2 CH3 3 2 HOAc Pd2 OAc 2 P C6H4 2 CH2 C6H4 2 CH3 2 2Many analogues of Hermann s catalyst have been developed e g palladacycles obtained from 2 aminobiphenyl 2 References Edit Herrmann W A Brossmer C Reisinger C P Riermeier T H Ofele K Beller M 1997 Palladacycles Efficient New Catalysts for the Heck Vinylation of Aryl Halides Chemistry A European Journal 3 1357 1364 doi 10 1002 chem 19970030823 Bruneau A Roche M Alami M Messaoudi S 2015 2 Aminobiphenyl Palladacycles The Most Powerful Precatalysts in C C and C Heteroatom Cross Couplings ACS Catalysis 5 1386 1396 doi 10 1021 cs502011x Retrieved from https en wikipedia org w index php title Herrmann 27s catalyst amp oldid 1128510398, wikipedia, wiki, book, books, library,
