Highly bulky and electron-rich terminal ruthenium phosphido complexes: new donor ligands for palladium-catalyzed suzuki cross-couplings. Academic Article

abstract

• Secondary phosphine complexes of the formula [(eta(5)-C(5)H(5))Ru(L)(2)(PHR(2))](+) BAr(F)(-) are prepared from cationic ruthenium N(2) complexes and PHR(2) (R = Ph (a), t-Bu (b), Cy (c)). Additions of t-BuOK or NaN(SiMe(3))(2) give the phosphido complexes (eta(5)-C(5)H(5))Ru(L)(2)(PR(2)) ((L)(2) = (PEt(3))(2) (5a-c), depe (6a,b)) in high NMR yields. These rapidly oxidize in air to give isolable RuP(=O)R(2) species. Complex 5a is more basic than the rhenium analogue (eta(5)-C(5)H(5))Re(NO)(PPh(3))(PPh(2)), and 6b is more basic than P-t-Bu(3). Complexes 5a-c and 6b are effective ligands for palladium-catalyzed Suzuki reactions. The catalyst from 6b is nearly as reactive as that from the benchmark ligand P-t-Bu(3).

authors

• Gladysz, John

published proceedings

• Inorg Chem

author list (cited authors)

• Planas, J. G., & Gladysz, J. A.

citation count

• 31

complete list of authors

• Planas, José Giner||Gladysz, JA

publication date

• December 2002

publisher

• American Chemical Society (ACS)  Publisher

published in

• Inorganic Chemistry  Journal

keywords

• 0302 Inorganic Chemistry

PubMed Central ID

• 12495330

Digital Object Identifier (DOI)

• 10.1021/ic020589y

start page

• 6947

end page

• 6949

volume

• 41

issue

• 26

URL

• http://dx.doi.org/10.1021/ic020589y