374733

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Organo-palladium(II) complexes bearing unsymmetrical N,N,N-pincer ligands: synthesis, structures and oxidatively induced coupling reactions.

Luka A Wright et al.

Dalton transactions (Cambridge, England : 2003), 44(16), 7230-7241 (2015-03-20)

The 2-(2′-aniline)-6-imine-pyridines, 2-(C6H4-2′-NH2)-6-(CMe=NAr)C5H3N (Ar = 4-i-PrC6H4 (HL1a), 2,6-i-Pr2C6H3 (HL1b)), have been synthesised via sequential Stille cross-coupling, deprotection and condensation steps from 6-tributylstannyl-2-(2-methyl-1,3-dioxolan-2-yl)pyridine and 2-bromonitrobenzene. The palladium(II) acetate N,N,N-pincer complexes, [{2-(C6H4-2′-NH)-6-(CMe=NAr)C5H3N}Pd(OAc)] (Ar = 4-i-PrC6H4 (1a), 2,6-i-Pr2C6H3 (1b)), can be prepared by

Remote activation of nickel catalysts for ethylene oligomerization.

Yaofeng Chen et al.

Angewandte Chemie (International ed. in English), 44(7), 1108-1112 (2005-01-13)

O,N,N-pincer ligand effects on oxidatively induced carbon-chlorine coupling reactions at palladium.

Luka A Wright et al.

Dalton transactions (Cambridge, England : 2003), 44(13), 6040-6051 (2015-02-28)

The syntheses of two families of sterically tuneable O,N,N pro-ligands are reported, namely the 2-(phenyl-2'-ol)-6-imine-pyridines, 2-(C6H4-2'-OH),6-(CMe=NAr)C5H3N [Ar = 4-i-PrC6H4 (HL1(a)), 2,6-i-Pr2C6H3 (HL1(b))] and the 2-(phenyl-2'-ol)-6-(amino-prop-2-yl)pyridines, 2-(C6H4-2'-OH),6-(CMe2NHAr)C5H3N [Ar = 4-i-PrC6H4 (HL2(a)), 2,6-i-Pr2C6H3 (HL2(b))], using straightforward synthetic approaches and in reasonable overall

Addition of phenylacetylene to a magnesium complex of monoiminoacenaphtheneone (dpp-mian).

D A Razborov et al.

Dalton transactions (Cambridge, England : 2003), 44(47), 20532-20541 (2015-11-10)

In the presence of formic acid, acenaphthenequinone (AQ) reacts with one molar equivalent of 2,6-diisopropylaniline in toluene to give monoiminoacenaphtheneone (3, dpp-mian) in good yield. Reduction of compound 3 with an excess of magnesium in thf results in green crystalline

Nickel-NHC-catalyzed alpha-arylation of acyclic ketones and amination of haloarenes and unexpected preferential N-arylation of 4-aminopropiophenone.

Kouki Matsubara et al.

The Journal of organic chemistry, 72(14), 5069-5076 (2007-06-15)

Arylation of both acyclic ketones and primary and secondary amines was achieved using a new, simple, stable, and easy-to-access nickel(II)-halide complex bearing mixed PPh3/N-heterocyclic carbene ligands as a catalyst precursor. Acyclic ketones were first arylated at the alpha-position with the

Reactions of Bis (alkyl) yttrium Complexes Supported by Bulky N, N Ligands with 2, 6-Diisopropylaniline and Phenylacetylene.

Karpov AV, et al.

Organometallics, 31(15), 5349-5357 (2012)

Rigid NON- and NSN-ligand complexes of tetravalent and trivalent uranium: comparison of U-OAr2 and U-SAr2 bonding.

Balamurugan Vidjayacoumar et al.

Dalton transactions (Cambridge, England : 2003), 41(26), 8175-8189 (2012-05-09)

A rigid NSN-donor proligand, 4,5-bis(2,6-diisopropylanilino)-2,7-di-tert-butyl-9,9-dimethylthioxanthene (H(2)[TXA(2)], 1) was prepared by palladium-catalyzed coupling of 2,6-diisopropylaniline with 4,5-dibromo-2,7-di-tert-butyl-9,9-dimethylthioxanthene. Deprotonation of 1 using (n)BuLi provided Li(2)(DME)(2)[TXA(2)] (2), and subsequent reaction with UCl(4) afforded [Li(DME)(3)][(TXA(2))UCl(3)] (4). The analogous NON-donor ligated complex [(XA(2))UCl(3)K(DME)(3)] [3; XA(2)

Characterization and performance of Pd-La/spinel catalyst for preparation of 2, 6-diisopropylaniline

Ruixia J, et al.

Applied Catalysis A: General, 250(2), 209-220 (2003)

Electron-deficient naphthalene diimides as efficient planar Π-acid organocatalysts for selective oxidative C-C coupling of 2, 6-di-tert-butylphenol: A temperature effect.

Ke H, et al.

J. Mol. Catal. A: Chem., 385, 26-30 (2014)

Synthesis and catalytic activity of heterogeneous rare-earth metal catalysts coordinated with multitopic Schiff-base ligands.

Yilin Sun et al.

Dalton transactions (Cambridge, England : 2003), 41(32), 9682-9688 (2012-07-12)

Four multitopic Schiff-base ligand precursors were synthesized via condensation of 4,4'-diol-3,3'-diformyl-1,1'-diphenyl or 1,3,5-tris(4-hydroxy-5-formylphenyl)benzene with 2,6-diisopropylaniline or 2,6-dimethylaniline. Amine elimination reactions of Ln[N(SiMe(3))(2)](3) (Ln = La, Nd, Sm or Y) with these multitopic ligand precursors gave ten heterogeneous rare-earth metal catalysts.

Sulfonated N-heterocyclic carbenes for Suzuki coupling in water.

Christoph Fleckenstein et al.

Chemical communications (Cambridge, England), (27), 2870-2872 (2007-07-05)

Sulfonated, water-soluble imidazolium and imidazolinium salts were synthesized and the respective Pd-complexes with N,N'-bis(2,6-dialkyl-4-SO(3)(-)-phenyl)imidazol-2-ylidene and N,N'-bis(2,6-dialkyl-4-SO(3)(-)-phenyl)-4,5-dihydroimidazol-2-ylidene ligands were applied in aqueous Suzuki coupling reactions of aryl chlorides.

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