Category: 338800-13-8

Itabashi, Takayuki published the artcileEffect of substituents on molybdenum triiodide complexes bearing PNP-type pincer ligands toward catalytic nitrogen fixation, Related Products of pyridine-derivatives, the publication is Dalton Transactions (2019), 48(10), 3182-3186, database is CAplus and MEDLINE.

Molybdenum triiodide complexes bearing various substituted pyridine-based PNP-type pincer ligands were prepared and characterized by x-ray anal. Their catalytic activity was studied toward the reduction of nitrogen gas into ammonia under ambient reaction conditions.

Dalton Transactions published new progress about 338800-13-8. 338800-13-8 belongs to pyridine-derivatives, auxiliary class Bis-phosphine Ligands, name is 2,6-Bis((di-tert-butylphosphino)methyl)pyridine, and the molecular formula is C23H43NP2, Related Products of pyridine-derivatives.

Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem

Yamashita, Makoto published the artcileA catalytic synthesis of dialkylamines from alkylamines using neopentyl-substituted PNP pincer-iridium complex, Quality Control of 338800-13-8, the publication is Inorganica Chimica Acta (2011), 369(1), 15-18, database is CAplus.

A combination of neopentyl-substituted PNP-iridium complex and NaH could catalyze dimerization of alkylamines to form dialkylamines with the highest activity ever reported. Primary and secondary alkylamines were applicable to the present catalytic reaction. Several mechanistic studies suggested a plausible catalytic cycle. The high activity of catalyst may come from the role of neopentyl groups to make a space around the metal center.

Inorganica Chimica Acta published new progress about 338800-13-8. 338800-13-8 belongs to pyridine-derivatives, auxiliary class Bis-phosphine Ligands, name is 2,6-Bis((di-tert-butylphosphino)methyl)pyridine, and the molecular formula is C15H24BN3O2, Quality Control of 338800-13-8.

Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem

van der Vlugt, Jarl Ivar published the artcileCationic and neutral Ni^II complexes containing a non-innocent PNP ligand: formation of alkyl and thiolate species, Computed Properties of 338800-13-8, the publication is Dalton Transactions (2009), 1016-1023, database is CAplus and MEDLINE.

The synthesis and characterization of a series of cationic and neutral Ni-complexes with the non-innocent pincer ligand (HL = 2,6-bis(di(tert-butyl)phosphinomethyl)pyridine) is discussed. Starting with the dicationic complex [Ni(L)(NCMe)](BF₄)₂ (1), a small series of dicationic and monocationic Ni^II complexes has been prepared Substitution with tert-Bu isocyanide and azide occurs readily in MeCN solution IR spectroscopy provided a practical handle to access the formal valence state of the ligand. For the mono- and dicationic tert-Bu isocyanide derivatives the main vibrational bands in the IR spectra were reproduced quant. by DFT theor. calculations, showing good agreement with the exptl. observed Δν upon dearomatization of the ligand backbone. Using a selective dearomatization-reprotonation methodol. the mononuclear Ni-thiolate derivatives are cleanly generated and their structures have been determined by X-ray crystal structure determination Alternatively, starting from the monocationic species [Ni(L)Cl]BF₄, neutral alkyl derivatives are easily available in a two-step procedure, and these species have been spectroscopically characterized.

Dalton Transactions published new progress about 338800-13-8. 338800-13-8 belongs to pyridine-derivatives, auxiliary class Bis-phosphine Ligands, name is 2,6-Bis((di-tert-butylphosphino)methyl)pyridine, and the molecular formula is C44H28ClFeN4, Computed Properties of 338800-13-8.

Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem

Korstanje, Ties J. published the artcileSynthesis and Characterization of Rhenium(V) Oxo Complexes Bearing PNP-Pincer Ligands, Related Products of pyridine-derivatives, the publication is Organometallics (2014), 33(9), 2201-2209, database is CAplus.

The synthesis of pyridine-based PNP-pincer Re-oxo complexes, with Ph (1, 3), tert-Bu (2), or cyclohexyl (4) groups on the P atoms and either a ReO₂X (1, 2) or a ReCl₂O (3, 4) core is reported. The structures of these compounds were characterized using ¹H, ¹³C, and ³¹P NMR and using x-ray crystallog. for 1 and 4. Compounds 2 and 3 crystallize as the corresponding ReO(OH)X compounds upon their reaction with moisture during the crystallization process. The complexes were tested as catalysts in the oxidation reaction of limonene with H₂O₂, the O atom transfer reaction from pyridine N-oxide to PPh₃, and the dehydration reaction of 1-phenylethanol, but all showed poor catalytic performance. All complexes can be deprotonated at the benzylic arm, and 2 can be deprotonated twice, accompanied by dearomatization of the pyridine ring. 3 and 4 are highly stable in their oxidized forms. The noninnocent behavior shown here could open up possibilities for cooperative catalysis.

Organometallics published new progress about 338800-13-8. 338800-13-8 belongs to pyridine-derivatives, auxiliary class Bis-phosphine Ligands, name is 2,6-Bis((di-tert-butylphosphino)methyl)pyridine, and the molecular formula is C23H43NP2, Related Products of pyridine-derivatives.

Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem

Wei, Feng published the artcileStructural and photophysical study of copper iodide complex with PN̂ or PN̂P̂ ligand, Application of 2,6-Bis((di-tert-butylphosphino)methyl)pyridine, the publication is CrystEngComm (2014), 16(24), 5338-5344, database is CAplus.

Two PN̂-type ligands, 8-(diphenylphosphino)quinoline (L₁) and 2-[2-(diphenylphosphino)ethyl]pyridine (L₂), and two PN̂P̂-type ligands, 2,6-bis((diphenylphosphino)methyl)pyridine (L₃) and 2,6-bis((di-tert-butylphosphino)methyl)pyridine (L₄), were synthesized to coordinate with copper iodide (CuI). As a result, CuI complexes with rich structures, such as discrete complexes with formulas of [Cu₂I₂(L₁)₂] (5), [Cu₃I₃(L₂)₂] (6), and [CuI(L₃)] (7), and polymeric complexes with repeating units of [Cu₂I₂(L₄)] (8), and [Cu₃I₃(L₄)] (9) were synthesized and characterized by single crystal X-ray diffraction. Besides the intriguing structures, these complexes showed rich photoluminescent properties, with emission color that varied from blue to red and a photoluminescence quantum yield (PLQY) from 1.6 to 29.9% in the solid state. MO calculation and exptl. study showed that the emissions involve halide to ligand charge transfer (XLCT), metal to ligand charge transfer (MLCT), and/or cluster-centered (CC) excited states.

CrystEngComm published new progress about 338800-13-8. 338800-13-8 belongs to pyridine-derivatives, auxiliary class Bis-phosphine Ligands, name is 2,6-Bis((di-tert-butylphosphino)methyl)pyridine, and the molecular formula is C8H6ClF3, Application of 2,6-Bis((di-tert-butylphosphino)methyl)pyridine.

Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem

Dai, Xi-Jie published the artcileEn Route to a Practical Primary Alcohol Deoxygenation, Recommanded Product: 2,6-Bis((di-tert-butylphosphino)methyl)pyridine, the publication is Journal of the American Chemical Society (2016), 138(16), 5433-5440, database is CAplus and MEDLINE.

A long-standing scientific challenge in the field of alc. deoxygenation has been direct catalytic sp³ C-O defunctionalization with high selectivity and efficiency, in the presence of other functionalities, such as free hydroxyl groups and amines widely present in biol. mols. Previously, the selectivity issue had been only addressed by classic multistep deoxygenation strategies with stoichiometric reagents. Herein, we propose a catalytic late-transition-metal-catalyzed redox design, on the basis of dehydrogenation/Wolff-Kishner (WK) reduction, to simultaneously tackle the challenges regarding step economy and selectivity. The early development of our hypothesis focuses on an iridium-catalyzed process efficient mainly with activated alcs., which dictates harsh reaction conditions and thus limits its synthetic utility. Later, a significant advancement has been made on aliphatic primary alc. deoxygenation by employing a ruthenium complex, with good functional group tolerance and exclusive selectivity under practical reaction conditions. Its synthetic utility is further illustrated by excellent efficiency as well as complete chemo- and regioselectivity in both simple and complex mol. settings. Mechanistic discussion is also included with exptl. supports. Overall, our current method successfully addresses the aforementioned challenges in the pertinent field, providing a practical redox-based approach to the direct sp³ C-O defunctionalization of aliphatic primary alcs.

Journal of the American Chemical Society published new progress about 338800-13-8. 338800-13-8 belongs to pyridine-derivatives, auxiliary class Bis-phosphine Ligands, name is 2,6-Bis((di-tert-butylphosphino)methyl)pyridine, and the molecular formula is C23H43NP2, Recommanded Product: 2,6-Bis((di-tert-butylphosphino)methyl)pyridine.

Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem

Hood, Thomas M. published the artcileSynthesis and Structural Dynamics of Five-Coordinate Rh(III) and Ir(III) PNP and PONOP Pincer Complexes, COA of Formula: C23H43NP2, the publication is Inorganic Chemistry (2019), 58(11), 7593-7601, database is CAplus and MEDLINE.

The synthesis and characterization of a homologous series of five-coordinate Rh(III) and Ir(III) complexes of PNP (2,6-(tBu₂PCH₂)₂C₅H₃N) and PONOP (2,6-(tBu₂PO)₂C₅H₃N) pincer ligands are described: [M(PNP)(biph)][BAr^F₄] (M = Rh, 1a; Ir, 1b; biph = 2,2′-biphenyl; Ar^F = 3,5-(CF₃)₂C₆H₃) and [M(PONOP)(biph)][BAr^F₄] (M = Rh, 2a; Ir, 2b). These complexes are structurally dynamic in solution, exhibiting pseudorotation of the biph ligand on the ¹H NMR time scale (ΔG^{îŒ?/sup> âˆ?0 kJ mol-1) and, in the case of the flexible PNP complexes, undergoing interconversion between helical and puckered pincer ligand conformations (ΔGîŒ?/sup> âˆ?0 kJ mol-1). Remarkably, the latter is sufficiently facile that it persists in the solid state, leading to temperature-dependent disorder in the associated x-ray crystal structures. Reaction of 1 and 2 with CO occurs for the Ir congeners 1b and 2b, giving sterically congested carbonyl derivatives}

Inorganic Chemistry published new progress about 338800-13-8. 338800-13-8 belongs to pyridine-derivatives, auxiliary class Bis-phosphine Ligands, name is 2,6-Bis((di-tert-butylphosphino)methyl)pyridine, and the molecular formula is C23H43NP2, COA of Formula: C23H43NP2.

Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem

Kadassery, Karthika J. published the artcilePentacarbonylmethylmanganese(I) as a synthon for Mn(I) pincer catalysts, Formula: C23H43NP2, the publication is Dalton Transactions (2019), 48(14), 4467-4470, database is CAplus and MEDLINE.

Mn(I) complexes that enable metal-ligand cooperative substrate activation catalyze a range of transformations. Use of MeMn(CO)₅ as a synthon in place of typical Mn(CO)₅Br was explored and found to be quite versatile, generating catalytically active species in situ by activation of O-H, N-H, and even C-H bonds.

Dalton Transactions published new progress about 338800-13-8. 338800-13-8 belongs to pyridine-derivatives, auxiliary class Bis-phosphine Ligands, name is 2,6-Bis((di-tert-butylphosphino)methyl)pyridine, and the molecular formula is C23H43NP2, Formula: C23H43NP2.

Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem

Meng, Fanqiang published the artcileAmmonia Formation Catalyzed by a Dinitrogen-Bridged Dirhenium Complex Bearing PNP-Pincer Ligands under Mild Reaction Conditions, Quality Control of 338800-13-8, the publication is Angewandte Chemie, International Edition (2021), 60(25), 13906-13912, database is CAplus and MEDLINE.

A series of rhenium complexes bearing a pyridine-based PNP-type pincer ligand are synthesized from rhenium phosphine complexes as precursors. A dinitrogen-bridged dirhenium complex bearing the PNP-type pincer ligands catalytically converts dinitrogen into ammonia during the reaction with KC8 as a reductant and [HPCy₃]BArF₄ (Cy=cyclohexyl, ArF=3,5-(CF₃)₂C₆H₃) as a proton source at -78 °C to afford 8.4 equiv of ammonia based on the rhenium atom of the catalyst. The rhenium-dinitrogen complex also catalyzes silylation of dinitrogen in the reaction with KC8 as a reductant and Me₃SiCl as a silylating reagent under ambient reaction conditions to afford 11.7 equiv of tris(trimethylsilyl)amine based on the rhenium atom of the catalyst. These results demonstrate the first successful example of catalytic nitrogen fixation under mild reaction conditions using rhenium-dinitrogen complexes as catalysts.

Angewandte Chemie, International Edition published new progress about 338800-13-8. 338800-13-8 belongs to pyridine-derivatives, auxiliary class Bis-phosphine Ligands, name is 2,6-Bis((di-tert-butylphosphino)methyl)pyridine, and the molecular formula is C23H43NP2, Quality Control of 338800-13-8.

Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem

Nielsen, Martin published the artcileEfficient Hydrogen Production from Alcohols under Mild Reaction Conditions, Synthetic Route of 338800-13-8, the publication is Angewandte Chemie, International Edition (2011), 50(41), 9593-9597, database is CAplus and MEDLINE.

This effective acceptor-less dehydrogenation of alc. employs mild, neutral reaction conditions. The protocol is extended beyond the typical model substrate, iso-Pr alc., to the bio-relevant ethanol. Unprecedented high turnover frequencies for both iso-Pr alc. and ethanol are observed at low temperatures (< 100〈°C).

Angewandte Chemie, International Edition published new progress about 338800-13-8. 338800-13-8 belongs to pyridine-derivatives, auxiliary class Bis-phosphine Ligands, name is 2,6-Bis((di-tert-butylphosphino)methyl)pyridine, and the molecular formula is C23H43NP2, Synthetic Route of 338800-13-8.

Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem