Category: 12150-46-8

Children learn through play, and they learn more than adults might expect. Science experiments are a great way to spark their curiosity, get their minds active, and encourage them to do something that doesn’t involve a screen. 12150-46-8, C34H28FeP2. A document type is Article, introducing its new discovery., category: chiral-phosphine-ligands

Reactions of PdCl2, LiCl, 4-R-N’-(mesitylidene)benzohydrazides (H2Ln; n = 1 and 2 for R = H and OMe, respectively) and NaOAc·3H2O in 1:2:1:1 mol ratio in methanol produce [Pd(HLn)Cl] (1 (n = 1) and 2 (n = 2)) in ?77% yields. Reactions of [Pd(HLn)Cl] (1 and 2) with PPh3 in 1:2 mol ratio in acetone provide [Pd(Ln)(PPh3)] (3 (n = 1) and 4 (n = 2)) in ?76% yields. Whereas, treatment of 2 mol equivalents of [Pd(HLn)Cl] (1 and 2) with 1 mol equivalent of 1,4-bis(diphenylphosphino)butane (dppb) in acetone affords the dinuclear [Pd2(mu-dppb)(Ln)2] (5 (n = 1) and 6 (n = 2)) in ?74% yields. Analogous reaction between [Pd(HL2)Cl] (2) and 1,1′-bis(diphenylphosphino)ferrocene (dppf) provides [Pd2(mu-dppf)(L2)2] (7) in 67% yield. Elemental (CHN) analysis, X-ray crystallographic and spectroscopic (IR, UV-Vis and NMR) measurements have been used to characterize all the complexes. In these complexes, the metal centers are in square-planar CNOCl or CNOP coordination geometry formed by the 6,5-membered fused chelate rings forming methylene-C, azomethine-N and amide- or amidate-O donor (HLn)- or (Ln)2- and the ancillary ligand chloride or phosphine. The spectroscopic properties of the complexes are consistent with the corresponding molecular structures established by X-ray crystallography.

Interested yet? Keep reading other articles of 12150-46-8!, category: chiral-phosphine-ligands

Reference：
Phosphine ligand,
Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate

Application of 12150-46-8. Let’s face it, organic chemistry can seem difficult to learn. Especially from a beginner’s point of view. Like 12150-46-8, Name is 1,1-Bis(diphenylphosphino)ferrocene. In a document type is Article, introducing its new discovery.

The substitution chemistry of the complex [RuCl(PPh3)2{HB(pz)3}] (1) is reported. Treating 1 with the phosphines bis(diphenylphosphino)methane (dppm), 1,2-bis(diphenylphosphino)-ethane (dppe), or 1,1?-bis(diphenylphosphino)ferrocene (dppf) provides the complexes [RuCl-(dppm){HB(pz)3}] (2), [RuCl(dppe){HB(pz)3}] (3), or [RuCl(dppf){HB(pz)3}] (4), respectively. Reactions of 1 with pivaloisonitrile (CNCMe3) are solvent dependent: In neat dichloromethane or tetrahydrofuran the reaction of 1 with CNCMe3 provides the neutral complex [Ru(CNCMe3)Cl(PPh3)(HB(pz)3}] (5), while the salt [Ru(CNCMe3)(PPh3)2{HB(pz)3}]PF 6 (6· PF6) is obtained when the reaction is carried out in dichloromethane/methanol mixtures in the presence of NH4PF6. The reaction of 4 with CNCMe3 and NH4PF6 provides the salt [Ru-(CNCMe3)(dppf){HB(pz)3}]PF 6(7·PF6). The bis(isonitrile) salt [Ru(CNCMe3)2(PPh3){HB(pz)3}]-PF 6 (8·PF6) results from the reaction of 1, 5, or 6·PF6 with excess CNCMe3 in thf/methanol. The reaction of 1 with Na[S2CNMe2] provides the complex [Ru(S2CNMe2)(PPh3){HB(pz)3}] (9); however similar reaction of 1 or [Ru(NCMe)2(PPh3){HB(pz)3)]PF6 with Na[O2CH] failed to cleanly provide [Ru(O2CH)(PPh3){HB(pz)3}] (10), although this could be characterized spectroscopically. Rather, the ultimate product of these reactions was the hydrido complex [RuH(PPh3)2{HB(pz)3)] (11), which could also be obtained in high yield from the reaction of 1 with NaOMe. In a similar manner, reaction of 4 with methanolic NaOMe provided [RuH-(dppf){HB(pz)3}] (12). The reactions of 1 and 4 with alkynes are solvent dependent: Treating 1 with HC?CR (R = C6H4Me-4, CPh2OH) in thf provides, respectively, the vinylidene complex [RuCl(=C=CHC6H4Me-4)(PPh3){HB(pz)3}] (13) and the allenylidene complex [RuCl(=C= C=CPh2)(PPh3){HB(pz)3}] (14), while the reaction of 1 with HC?CC6H4Me-4 in a mixture of thf and methanol provides the alkynyl complex [Ru(C?CC6H4Me-4)(PPh3) 2{HB(pz)3}] (15). The reaction of 1 with HC?CCPh2OH in the presence of AgPF6 provides the allenylidene salt [Ru(=C=C=CPh2)(PPh3)2{HB(pz) 3}]PF6 (16·PF6), and similar treatment of 4 provides [Ru(=C=C=CPh2)(dppf){HB(pz)3}]PF6 (17·PF6). The reaction of 4 with HC?CC6H4Me-4 and AgPF6 provides the vinylidene salt [Ru(=C=CHC6H4Me-4)(dppf){HB(pz)3}]PF 6 (18·PF6), deprotonation of which (NaOMe) provides [Ru(C?CC6H4Me-4)(dppf){HB(pz)3}] (19). The allenylidene salt (16·PF6) with NaOMe provides the gamma-alkoxyalkynyl complex [Ru(C?CCPh2-OMe)(PPh3)2{HB(pz) 3}] (20). The complex [OsCl(PPh3)2{HB(pz)3}] (21) is obtained from the reaction of [OsCl2(PPh3)3] with K[HB(pz)3] and is converted by KOH in reluxing 2-methoxyethanol to the hydride complex [OsH(PPh3)2{HB(pz)3}] (22). The vinylidene complex 13 reacts with [Et2NH2][S2CNEt2] to provide the metallacyclic vinyl complex [Ru{C(=CHC6H4-Me-4)SC(NEt2)S}(PPh 3){HB(pz)3}] (23). Similarly the complex 14 and the salt 16·PF6 react with Na[S2CNMe2] to both provide the metallacyclic allenyl complex [Ru{C(=C=CPh2)SC-(NMe2)S}(PPh3){HB(Pz) 3}] (24). These reactions represent the first examples of the coupling of dithiocarbamates with vinylidene and allenylidene ligands. The complexes 5 and [RuCl-(CS)(PPh3){HB(Pz)3}] (25) and the salt (16·PF6) were characterized crystallographically.

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Reference：
Phosphine ligand,
Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate

Related Products of 12150-46-8, Catalysts are substances that increase the reaction rate of a chemical reaction without being consumed in the process. 12150-46-8, Name is 1,1-Bis(diphenylphosphino)ferrocene, molecular formula is C34H28FeP2. In a Article，once mentioned of 12150-46-8

A series of cationic Pt(II) complexes with chelating bis-carbene and P,P- or P,S-ligands, viz. [(C^C)Pt(X^Y)][BF4]2 (2a?e), where C^C = methylenebis(3-methyl-1H-imidazol-1-yl-2-ylidene, and X^Y = Ph2PCH2CH2PPh2 (dppe) (a), Ph2P(CH2)3PPh2 (dppp) (b), 1,2-(Ph2P)2C6H4 (dppbz) (c), [Fe(eta5-C5H4PPh2)2] (dppf) (d), and Ph2PCH2CH2SPh (e), were synthesized and structurally characterized by NMR and MS spectroscopy and by single-crystal X-ray diffraction analysis. Furthermore, photophysical measurements showed that these compounds were non-emissive at room temperature. However, when cooled to 77 K, compounds 2a, 2b and 2c showed weak luminescence in the near UV region with emission maxima in the 380?395 nm range.

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Reference：
Phosphine ligand,
Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate

Chemistry is an experimental science, and the best way to enjoy it and learn about it is performing experiments.Introducing a new discovery about 12150-46-8, Name is 1,1-Bis(diphenylphosphino)ferrocene, HPLC of Formula: C34H28FeP2.

Electronically variant (dppf)Ni(ketene) complexes were synthesized and characterized to perform kinetic analysis on their decomposition through a decarbonylation/disproportion process to Ni-CO complexes and alkenes. Ligands containing electron-donating groups stabilized such complexes, whereas an electron-withdrawing group was found to destabilize them. Hammett analysis on the decomposition reaction revealed the buildup of negative charges in the rate-determining step, which corroborates past computational models.

Balanced chemical reaction does not necessarily reveal either the individual elementary reactions by which a reaction occurs or its rate law.HPLC of Formula: C34H28FeP2. In my other articles, you can also check out more blogs about 12150-46-8

Reference：
Phosphine ligand,
Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate

Application of 12150-46-8. Chemistry is an experimental science, and the best way to enjoy it and learn about it is performing experiments.Introducing a new discovery about 12150-46-8, Name is 1,1-Bis(diphenylphosphino)ferrocene

The nickel-catalyzed cross-coupling difluoromethylation of the Grignard reagents with difluoroiodomethane is shown to provide the corresponding aromatic difluoromethyl products in excellent to moderate yields. The difluoromethylation proceeds smoothly within 1 h at room temperature with 1.5 equiv of the Grignard reagents in the presence of Ni(cod)2/TMEDA (2.5-0.5 mol %). Mechanistic studies clarify that the oxidative addition of the Ni(0) catalyst to difluoroiodomethane provides the TMEDA-Ni(II)(CF2H)I complex. This intermediate is transformed to TMEDA-Ni(II)(CF2H)Ph via transmetalation with PhMgBr. The reductive elimination takes place to give the aromatic cross-coupling difluoromethylation product along with regeneration of the TMEDA-Ni(0) catalyst. Electron paramagnetic resonance (EPR) and radical clock analyses of the nickel-catalyzed reaction provide no EPR active Ni(I) and Ni(III) species at around g = 2 and only a trace amount of the cyclization product.

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Reference：
Phosphine ligand,
Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate

A catalyst don’t appear in the overall stoichiometry of the reaction it catalyzes, but it must appear in at least one of the elementary reactions in the mechanism for the catalyzed reaction. 12150-46-8, Name is 1,1-Bis(diphenylphosphino)ferrocene, molecular formula is C34H28FeP2. In a Article，once mentioned of 12150-46-8, name: 1,1-Bis(diphenylphosphino)ferrocene

The reactions of sodium (aza-15-crown-5)dithiocarbamate with [AuClL] precursors lead to mono-, di-, or hexanuclear derivatives depending on L. The homoleptic hexanuclear gold(I) cluster [Au6(S2CNC 10H20O4)6] is formed by displacement of the chloride and isocyanide ligands in [AuCl(CN(2,6-Me2C 6H3))]. X-ray diffraction studies show a novel geometry in gold cluster chemistry where the six gold atoms display a cyclohexane-like geometry in a chair conformation with Au-Au-Au angles of 117.028(9), two short gold-gold distances of 2.9289(5) A, and bidentate bridging dithiocarbamate ligands. The molecular structure shows a crown of gold atoms surrounded by crown ethers. This derivative luminesces at 569 nm at room temperature in the solid state. A dinuclear isomer [AU2(S2CNC 10H20O4)2] had been reported previously and was obtained by reaction with [AuCl(SMe2)]. The mechanism to obtain the hexanuclear derivative involves a mononuclear intermediate [Au(S2CNC10H20O4)(CNR)] for which the X-ray structure shows a short gold-gold distance of 3.565 A with the two molecules in an anti configuration. Phosphine gold(I) mononuclear derivatives [Au(S2CNC10H20O4) (PR3)] (R = Me, Ph, both characterized by X-ray diffraction) and dinuclear diphosphine derivatives [{Au(S2CNC10H 20O4)}2(mu-P-P)] (P-P = dppm, bis(diphenylphosphinomethane); dppp, 1,3-bis(diphenylphosphinopropane); and dppf, 1,1?-bis(diphenylphosphinoferrocene)) are also reported. In the mononuclear complexes, the molecular structure confirms that the dithiocarbamato ligand is mainly acting as monodentate, with a second longer Au-S distance of 3.197 (PMe3), 2.944(4) (PPh3), and 2.968 A (CNR). Three phosphine complexes are emissive at 562 (PMe3), 528 (PPh 3), and 605 nm (dppm), at 77 K. X-ray diffraction studies of the dppm derivative show gold-gold intramolecular contacts of 3.0972(9) A (3.2265(10) A for a second independent molecule) and basically monodentate coordination of the dithiocarbamato ligands. All the complexes extract sodium and potassium salts from aqueous solutions. The diphosphine derivatives are noticeably better extractors than the monophosphino derivatives, mainly for potassium salts.

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Reference：
Phosphine ligand,
Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate

12150-46-8, Name is 1,1-Bis(diphenylphosphino)ferrocene, molecular formula is C34H28FeP2, belongs to chiral-phosphine-ligands compound, is a common compound. In a patnet, once mentioned the new application about 12150-46-8, Recommanded Product: 1,1-Bis(diphenylphosphino)ferrocene

1,1′-Bis(diphenylphosphino)ferrocene (dppf) reacted with (BF4)2 in the presence of one equivalent of phosphines to give a stable 1/1 complex in which there is a bonding interaction between Fe and Pd atoms.An X-ray structure determination of <(dppf)Pd(PPh3)>(BF4)2 confirms the presence of a dative bond (2.877(2) Angstroem).In the case of ligands other than phosphines, no complex with a metal-metal bond was obtained.

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Reference：
Phosphine ligand,
Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate

12150-46-8, Name is 1,1-Bis(diphenylphosphino)ferrocene, molecular formula is C34H28FeP2, belongs to chiral-phosphine-ligands compound, is a common compound. In a patnet, once mentioned the new application about 12150-46-8, name: 1,1-Bis(diphenylphosphino)ferrocene

In this study, the cytotoxic activities of structurally related cycloplatinated(ii) complexes containing chelating and bridging 1,1?-bis(diphenylphosphino)ferrocene (dppf) ligand derived from a wide range of C^N cyclometalating ligands (vpy = deprotonated 2-vinylpyridine, bzq = deprotonated benzo[h]quinoline, bpy = deprotonated 2,2?-bipyridine, bpyO = deprotonated 2,2?-bipyridine N-oxide, and ppy = deprotonated 2-phenylpyridine), were evaluated against human lung (A549), ovarian (SKOV3) and breast (MCF-7) cancer cell lines. The most cytotoxic compounds, 2a, 2c and 2d, effectively produced cell death by inducing apoptosis in the A549, SKOV3 and MCF-7 cancer cell lines. In addition, the molecular docking simulation was performed to determine the specific binding mode and the orientation of binding to DNA. According to the results of biological evaluation, the dppf-containing cycloplatinated(ii) complexes exhibited strong interactions with DNA as well as high cytotoxicity and apoptosis-inducing activities to human cancer cell line. The present study suggests that precise rational design of new platinum-based complexes would result in the preparation of potential anticancer drugs, which can induce facile apoptosis.

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Reference：
Phosphine ligand,
Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate

In an article, published in an article, once mentioned the application of 12150-46-8, Name is 1,1-Bis(diphenylphosphino)ferrocene,molecular formula is C34H28FeP2, is a conventional compound. this article was the specific content is as follows.Product Details of 12150-46-8

Hetero-trinuclear complexes of formula [(C6F5)2Pt(mu-PPh2)2M(dppf)] [dppf = 1,1?-bis(diphenylphosphino)ferrocene, M = Pt (1), M = Pd (2)] were prepared by coupling between cis-[(C6F5)2Pt(PPh2)2]Li2and cis-MCl2(dppf). Reaction of the Pt/Pt/Fe species 1 with [Ag(OClO3)(PPh3)] or I2resulted in the formation of the complexes [(C6F5)(PPh3)Pt(mu-PPh2)2Pt(dppf)] (3) and [(C6F5)(I)Pt(mu-PPh2)2Pt(dppf)] (4), respectively, in which one of the pentafluorophenyl ligands has been replaced by PPh3or I. Reaction of the Pt/Pd/Fe species 2 with Ag(ClO4) afforded the tetranuclear complex [(C6F5)2Pt(mu-PPh2)2Pd(dppf)Ag] (5) where the silver atom is bonded to Pd, to one of the bridging P and to one of the dppf P atoms. With [Ag(OClO3)(PPh3)], complex 5 is also formed, although mixed with [Ag(PPh3)2][ClO4]. A dynamic process in solution, in which the silver atom passes from one Pd?muPPh2bond to the other, has been observed at room temperature for complex 5. The crystal structures of 3, 4 and 5 are reported.

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Reference：
Phosphine ligand,
Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate

Reference of 12150-46-8. Let’s face it, organic chemistry can seem difficult to learn. Especially from a beginner’s point of view. Like 12150-46-8, Name is 1,1-Bis(diphenylphosphino)ferrocene. In a document type is Article, introducing its new discovery.

The palladium dibromide complexes of (S,R)-(1,1′-bis-diphenylphosphino)-2-ferrocenylethyldimethylamine and (S,R)-(1-diphenylphosphino)-2-ferrocenylethyldimethylamine have been reduced with dilithiocyclooctatetraene to form the corresponding Pd0 cyclooctatetraene complexes.Their reactions with E-4-methoxy-2′-bromophenylethene, and then benzylmagnesium chloride at -60 to -30 deg C, provide information on the structure of intermediates in asymmetric cross-coupling.

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Reference：
Phosphine ligand,
Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate