NCN–pincer palladium complexes with multiple anchoring points for functional groups

para-Substituted NCN–pincer palladium(II) complexes (NCN = [2,6-(CH 2NMe 2) 2C 6H 3] −) of the type [Pd(OH 2)(NCN-4-CHZ-C 6H 4SiMe 3)](BF 4) (with Z = OH, OAc, OSiMe 2t-Bu, (C 5H 5N)(BF 4)) have been synthesized and were used as catalysts in the aldol reaction between methyl isocyanoacetate and para...

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Published inCoordination chemistry reviews Vol. 248; no. 21; pp. 2275 - 2282
Main Authors Slagt, Martijn Q., Zwieten, Don A.P. van, Moerkerk, Adrianus J.C.M., Gebbink, Robertus J.M. Klein, Koten, Gerard van
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.12.2004
Subjects
Catalysis
Ligand design
Palladium
Synthesis
Ligand design
Palladium
Synthesis
Catalysis
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Summary:para-Substituted NCN–pincer palladium(II) complexes (NCN = [2,6-(CH 2NMe 2) 2C 6H 3] −) of the type [Pd(OH 2)(NCN-4-CHZ-C 6H 4SiMe 3)](BF 4) (with Z = OH, OAc, OSiMe 2t-Bu, (C 5H 5N)(BF 4)) have been synthesized and were used as catalysts in the aldol reaction between methyl isocyanoacetate and para-functionalized benzaldehydes. The applied substituents Z, placed on a distal position from the cationic palladium(II) site, do not significantly influence the catalytic activity and selectivity of the resulting complexes, but offer a useful starting point for further modification or functionalization.
ISSN:0010-8545
1873-3840
DOI:10.1016/j.ccr.2004.08.014