Category: 12150-46-8

Synthetic Route 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

Substitution, cage functionalization, and oxidation of the charge-compensated triruthenium monocarbollide cluster complex [1-SMe 2-2,2-(CO)2-7,11-(mu-H)2-2,7,11-{Ru 2(CO)6}-closo-2,1-RuCB10H8]

The compound [1-SMe2-2,2-(CO)2-7,11-(mu-H) 2-2,7,11-{Ru2(CO)6}-closo-2,1-RuCB 10H8] 1a reacts with PMe3 or PCy3 (Cy = cyclo-C6H11) to give the structurally different species [1-SMe2-2,2-(CO)2-7,11-(mu-H) 2-2,7,11-{Ru2(CO)5-(PMe3)}-closo-2, 1-RuCB10H8] 4 and [1-SMe2-2,2-(CO) 2-11-(mu-H)-2,7,11-{Ru2(mu-H)(CO)5(PCy 3)}-closo-2,1-RuCB10H8] 5, respectively. A symmetrically disubstituted product [1-SMe2-2,2-(CO) 2-7,11-(mu-H)2-2,7,11-{Ru2(CO) 4(PMe3)2}-closo-2,1-RuCB10H 8] 6 is obtained using an excess of PMe3. In contrast, the chelating diphosphines 1,1?-(PPh2)2-Fe(eta-C 5H4)2 and 1,2-(PPh2) 2-closo-1,2-C2B10H10 react with 1a to yield oxidative-insertion species [1-SMe2-2,2-(CO) 2-11-(mu-H)-2,7,11-{Ru2(mu-H)(mu-[1?,1?- (PPh2)2-Fe(eta-C5H4) 2])(CO)4}-closo-2,1-RuCB10H8] 7 and [1-SMe2-2,2-(CO)2-11-(mu-H)-2,7,11-{Ru 2(mu-H)(CO)4(1?-2?-(PPh2) 2-closo-1?,2?-C2B10H 10)}-closo-2,1-RuCB10H8] 8, respectively. In toluene at reflux temperatures, 1a with ButSSBut gives [1-SMe2-2,2-(CO)2-7-(mu-SBut)-11-(mu-H)-2, 7,11-{Ru2(mu-H)(mu-SBut)(CO)4}-closo-2,1- RuCB10H8] 9, and with ButC?CH gives [1-SMe2-2,2-(CO)2-7-{mu:eta2-(E)-CH=C(H) But}-11-{mu:eta2-(E)-CH=C(H)But}-2,7,11- {Ru2(CO)5}-closo-2,1-RuCB10H8] 10. In the latter, two alkyne groups have inserted into cage B-H groups, with one of the resulting B-vinyl moieties involved in a C-H…Ru agostic bond. Oxidation of 1a with I2 or HgCl2 affords the mononuclear ruthenium complex [1-SMe2-2,2,2-(CO)3-closo-2,1-RuCB 10H10] 11. The Roysl Society of Chemistry 2005.

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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, Application In Synthesis of 1,1-Bis(diphenylphosphino)ferrocene

Mechanistic studies of the palladium-catalyzed ring opening of oxabicyclic alkenes with dialkylzinc

The mechanism of the palladium-catalyzed ring opening of oxabicyclic alkenes with dialkylzinc has been studied. Experiments which rule out a pi-allyl mechanism were carried out. Trapping carbometalated products and synthesis and successful reaction of alkyl palladium species provided strong evidence in favor of an enantioselective carbopalladation as the key step in the mechanism. The studies also suggest that a cationic palladium species is responsible for carbopalladation of the alkene. The combination of palladium and dialkylzinc is unique in that the dialkylzinc functions both in the transmetalation to palladium and as a Lewis acid in forming the reactive cationic palladium species.

Sometimes chemists are able to propose two or more mechanisms that are consistent with the available data.Application In Synthesis of 1,1-Bis(diphenylphosphino)ferrocene, If a proposed mechanism predicts the wrong experimental rate law, however, the mechanism must be incorrect.Welcome to check out more blogs about 12150-46-8, in my other articles.

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

Silver(I) poly(1,2,3-benzotriazolyl)borate complexes containing mono- and bidentate phosphine coligands

New silver(I) derivatives [Ag{HnB(btz)4 – n}(PR 3)x] (n = 1 or 2, x ranging from 1 to 3), containing monodentate tertiary phosphines and anionic poly(benzotriazol-1-yl)borates, have been prepared from the reaction of AgNO3 with PR3 (R = Ph, o-tolyl, m-tolyl, p-tolyl, Bns) and K[H2B(btz)2], or K[HB(btz)3] (Hbtz = 1,2,3-benzotriazole). When the reaction between K[H2B(btz)2] and AgNO3 was carried out in the presence of dppe (1,2-bis(diphenylphosphino)ethane), or dppf (1,1?-bis(diphenylphosphino)ferrocene), compounds [Ag{H 2B(btz)2}]2(L) (L = dppe or dppf) formed, the diphosphine acting as a bidentate bridging P2-donor. Solid state and solution properties of all complexes have been investigated through analytical and spectroscopic measurements (IR, 1H, 31P NMR), the 1H and 31P NMR spectra being interpreted in terms of equilibria that involve mono- and di-nuclear complexes. Adducts [Ag{HB(btz) 3}(PPh3)3] ? (1/2H2O) and [Ag{H2B(btz)2}]2 (dppf) have been characterised by single crystal X-ray studies. In the former, the HB(btz)3 is unidentate in an NAgP3 coordination environment; the latter is a dimer, the dppf bridging the two silver atoms, while the H2B(btz) 2 ligand, which chelates one silver, bridges to the second also, the array having 2-symmetry.

The proportionality constant is the rate constant for the particular unimolecular reaction. the reaction rate is directly proportional to the concentration of the reactant. I hope my blog about 12150-46-8 is helpful to your research., Related Products of 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

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, Safety of 1,1-Bis(diphenylphosphino)ferrocene.

BACE INHIBITORS

The present invention provides a compound of Formula III: wherein A is: and Z, R1, R2, R3, and R4 are as defined herein, or a pharmaceutically acceptable salt thereof.

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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.Safety of 1,1-Bis(diphenylphosphino)ferrocene

Microwave-assisted organometallic syntheses: Formation of dinuclear [(Arene)Ru(mu-Cl)3RuCl(L-L’)] complexes (L-L’ : Chelate ligands with P-,N-, or S-donor atoms) by displacement of Arene pi ligands

Microwave heating was employed to promote arene displacement in reactions of [{(p-cymene)RuCl2}2] or [{(1,3,5- C6H 3iPr3)RuCl2}2] with neutral chelate ligands L-L’ [L-L’: 1,1 ?-bis(diphenylphosphanyl)methane, 1,1?-bis(diphenylphosphanyl)ferrocene, S)-BINAP, (S.S)-DIOP, N,N?-bis(2,4,6-t:rimethylphenyl)-1,2-ethanediylidenediamine], R)-Ph-PHOX, and 3 (phenylsulfanylpropyl)diphenylphosphane. The reactions gave complexes of the general formula [(arene)Ru(mu Cl)3-RuCl(L-L’)l in good yield. The synthesis of [(p cymene)Ru(muCl)3RuCl{PPh2(CH 2)3NH2}] 22) was accomplished in two steps via the intermediate [{(p-cymene)RuCl2}2{mu PPh 2(CH2)3-NH2}] (21). The structures of [ l,3,5 C6H3iPr3)Ru(u-Cl) 3RuCl-(dppf)] (16), [(l,3,5 C6H3iPr 3)Ru(mu-Cl)3RuCl{(S)-BINAP}] (17),and [(p cymene)Ru((mu-Cl)3RuCl(MesNCHCHNMes)] (18) were determined by single-crystal X-ray diffraction. Wiley-VCH Verlag GmbH &Co, KGaA.

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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, Product Details of 12150-46-8.

Novel solvates in AgX:dpex (n:1) systems (n = 1 or 2); X = oxyanion; dppx = Ph2P(Y)PPh2, Y = (CH2)3, Fc

Novel solvated forms are spectroscopically (1H, 13C, 31P, IR and conductivity studies) and structurally described for diverse silver oxyanion salt:bis(diphenylphosphino)-ligand adducts of 2:1:n (AgX:dppx:S) stoichiometry. AgClO4:dppf:MeCN (2:1:4) (‘dppf’ = bis(diphenylphosphino)ferrocene) is a binuclear centrosymmetric species: [(O3ClO)(MeCN)2Ag(P-dppf-P?)Ag(NCMe)2(OClO3)], Ag-P short at 2.368(1) A. Two MeOH/H2O solvates are described, of AgX:dppp (2:1) stoichiometry, both single stranded polymers (X = carboxylate: ‘ac’ = acetate, ‘tfa’ = trifluoroacetate; ‘dppp’ = Ph2P(CH2)xPPh2; x = 3), with silver atoms spanned alternately by: (i) a P-dppp-P? bridge, supported by tenuously bridging water or methanol, and (ii) O-ac, tfa-O? bridge(s), being assigned stoichiometries Agtfa:dppp:H2O (2:1:1) · MeOH and Agac : dppp : MeOH ( 2 : 1 : 0.5 ) · 3 frac(1, 2) H2 O. The structure of AgClO4:dppe:MeCN (1:1:1) (‘dppe’, x = 2), also a one-dimensional polymer, but with all Ag…Ag sequences bridged by the P,P? ligand, and with unidentate MeCN and OClO3 coordinated to the silver, is also recorded.

Balanced chemical reaction does not necessarily reveal either the individual elementary reactions by which a reaction occurs or its rate law.Product Details of 12150-46-8. 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

The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature.12150-46-8, Name is 1,1-Bis(diphenylphosphino)ferrocene, molecular formula is C34H28FeP2. In a Article，once mentioned of 12150-46-8, Product Details of 12150-46-8

Ni-catalyzed carboxylation of C(sp2)- and C(sp3)-O bonds with CO2

In recent years a significant progress has been made for the carboxylation of aryl and benzyl halides with CO2, becoming convenient alternatives to the use of stoichiometric amounts of well-defined metal species. Still, however, most of these processes require the use of pyrophoric and air-sensitive reagents and the current methods are mostly restricted to organic halides. Therefore, the discovery of a mild, operationally simple alternate carboxylation that occurs with a wide substrate scope employing readily available coupling partners will be highly desirable. Herein, we report a new protocol that deals with the development of a synergistic activation of CO2 and a rather challenging activation of inert C(sp2)-O and C(sp3)-O bonds derived from simple and cheap alcohols, a previously unrecognized opportunity in this field. This unprecedented carboxylation event is characterized by its simplicity, mild reaction conditions, remarkable selectivity pattern and an excellent chemoselectivity profile using air-, moisture-insensitive and easy-to-handle nickel precatalysts. Our results render our method a powerful alternative, practicality and novelty aside, to commonly used organic halides as counterparts in carboxylation protocols. Furthermore, this study shows, for the first time, that traceless directing groups allow for the reductive coupling of substrates without extended pi-systems, a typical requisite in many C-O bond-cleavage reactions. Taking into consideration the limited knowledge in catalytic carboxylative reductive events, and the prospective impact of providing a new tool for accessing valuable carboxylic acids, we believe this work opens up new vistas and allows new tactics in reductive coupling events.

Note that a catalyst decreases the activation energy for both the forward and the reverse reactions and hence accelerates both the forward and the reverse reactions.Product Details of 12150-46-8, you can also check out more blogs about12150-46-8

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

The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature.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

Carbon-nitrogen-bond-forming reductive elimination of arylamines from palladium(II) phosphine complexes

A series of monomeric palladium amido complexes of the form trans-(PPh3)2Pd(Ar)(NAr’2) and (DPPF)Pd(Ar)NAr’2) (DPPF = 1,1′-bis(diphenylphosphino)ferrocene) and dimeric palladium amido complexes of the form {(PPH3)Pd(Ar)mu-NHR)}2 (R = Ph, t-Bu) have been prepared by the reaction of lithium and potassium amides with palladium aryl halide complexes. An X-ray crystal structure of (DPPF)Pd(p-NMe2C6H4)[N(p-CH3C6H4)2] was obtained. Upon thermolysis in the presence of PPh3, serving as a trapping agent, both the monomeric and dimeric palladium amido complexes underwent C-N-bond-forming reductive elimination to form arylamines in high yields along with a Pd(0) species. Reductive elimination was also observed from azametallacycle (PPh3)Pd(eta2-C6H4C6H4-NH), to form carbazole and Pd(PPh3)4 at room temperature. Mechanistic studies on the reductive elimination reactions of the monomeric PPh3-ligated amido complexes indicated the presence of two competing pathways for the formation of amine. At low [PPh3], reductive elimination occurs via phosphine dissociation to form a three-coordinate intermediate; however, as [PPh3] is increased, a pathway of reductive elimination from a four-coordinate complex becomes dominant. The DPPF-ligated palladium amido complexes directly eliminated amine from the four-coordinate complex. The mechanism of the reductive elimination from dimeric palladium amido complexes was also studied. These complexes undergo reductive elimination of amine via dimer dissociation to generate a three-coordinate intermediate analogous to those formed by the PPh3-ligated monomeric amido complexes. The C-N-bond forming reductive elimination reactions were accelerated by electron-withdrawing groups on the Pd bound aryl group and by electron-donating groups on the amido ligand, suggesting that the aryl group acts as an electrophile and the amido ligand acts as a nucleophile.

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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

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., name: 1,1-Bis(diphenylphosphino)ferrocene

Synthesis, X-ray structure, and physical and photophysical properties of the heterobimetallic complex Fe(eta5-C5H4PPh2) 2Pt(bph)

A chromophore-electroactive compound, Fe(eta5-C5H4PPh2) 2Pt(bph), where bph is the biphenyl dianion and Fe(eta5-C5H4PPh2)2 is 1,1?-bis(diphenylphosphino)ferrocene-P,P? has been synthesized. The single-crystal X-ray structural characteristics of this heterobimetallic complex and its disolvated methylene chloride derivative are respectively as follows: empirical formula C46H36FeP2Pt, triclinic, P1, Z = 4, a = 9.777(2) A, b = 18.003(4) A, c = 20.882(4) A, alpha = 93.57(3), beta = 100.99(3), and gamma = 90.86(3), and empirical formula C48H40Cl2FeP2Pt, monoclinic, P21/n, Z = 4, a = 12.698(3) A, b = 14.161(3) A, c = 23.376(6) A, alpha = 90, beta = 94.107(14), and gamma = 90. An electrochemical study shows that the anodic potential for the oxidation of the ferrocenyl moiety of this compound increases by +0.13 V, compared to that for Fe(eta5-C5H4PPh2)2. This change in oxidation potential agrees well with the change in energy of 0.11 eV for the dpi(Fe) ? pi*(Cp) MLCT transition upon coordination with Pt. The resultant excited state from the dpi(Pt) ? pi*(bph) MLCT transition is readily quenched by the ferrocenyl moiety unit as expected, and charge-separated redox-active centers are formed.

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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

The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature.12150-46-8, Name is 1,1-Bis(diphenylphosphino)ferrocene, molecular formula is C34H28FeP2. In a Article，once mentioned of 12150-46-8, Recommanded Product: 1,1-Bis(diphenylphosphino)ferrocene

The chloro-bridged dinuclear compound [{Pd[5-(COH)C6H3C(H)=N(Cy)-C2,N]}(mu-Cl)] 2(1), reacts with tertiary diphosphines in 1:1 molar ratio to give [{Pd[5-(COH)C6H3C(H)=NCy-C2,N](Cl)} 2(mu-Ph2PRPPh2)] (R: CH2, 2; CH2CH2, 3; (CH2)4, 4; (CH2) 6, 5; Fe(C5H4) 2, 6; trans-CH=CH, 7; C ? C, 8). Treatment of 1 with Ph2PCH2CH2AsPh2 (arphos) gives the dinuclear complex [{Pd[5-(COH)C6H3 C(H)=N(Cy)-C2,N](Cl)}2 (mu-Ph2PCH2C H2AsPh2)] (9). The reaction of 1 with tertiary diphosphines or arphos in 1:2 molar ratio in the presence of NH4PF6 yields the mononuclear compounds [Pd{5-(COH)C6H3C(H)=NCy-C2,N}(Ph2 PRPPh2-P,P)][PF6] (R: (CH2)4, 10; (CH2)6, 11; Fe(C5H4) 2, 12; 1,2-C6H4, 13; cis-CH=CH, 14; NH, 15) and [Pd{5-(COH)C6H3C(H)=N(Cy)-C2,N} (Ph2PCH2CH2AsPh2-P,As)][PF 6] (16). 1H-, 31P-{1H}- and 13C-{1H}-NMR, IR and mass spectroscopic data are given. The crystal structures of compounds 3, 6, 9 and 16 have been determined by X-ray crystallography.

The reactant in an enzyme-catalyzed reaction is called a substrate. Enzyme inhibitors cause a decrease in the reaction rate of an enzyme-catalyzed reaction.I hope my blog about 12150-46-8 is helpful to your research., Recommanded Product: 1,1-Bis(diphenylphosphino)ferrocene

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