Tag: M.W:500-600

Reference of 166330-10-5. Let’s face it, organic chemistry can seem difficult to learn. Especially from a beginner’s point of view. Like 166330-10-5, Name is (Oxybis(2,1-phenylene))bis(diphenylphosphine). In a document type is Article, introducing its new discovery.

Abstract Reaction of 4-bromo-2-(1H-imidazo[4,5-f][1,10]phenanthrolin-2-yl)phenol (BIPP), chelating diphosphine ligands and [Cu(MeCN)4]ClO4 afforded five mononuclear [Cu(BIPP)(PP)]ClO4 (PP = dppe, 1; dppp, 2; bdpp, 3; POP, 4; xantphos, 5) complexes with good phosphorescent emission in the solid state. All the complexes are characterized by elemental analyses, electrospray Ionization mass spectra, 1H and 31P NMR spectra and X-ray single crystallography. The photoluminescence quantum yields of complexes 1-5 are from less than 0.010 to 0.262 in the solid state under air atmosphere, which increase with the increasing rigidity of diphosphine ligands and the increasing strength of intermolecular and intramolecular pi?pi interactions. The aggregation-induced emission of complexes 4 and 5 at room temperature was investigated.

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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

Synthetic Route of 161265-03-8. Let’s face it, organic chemistry can seem difficult to learn. Especially from a beginner’s point of view. Like 161265-03-8, Name is (9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(diphenylphosphine). In a document type is Article, introducing its new discovery.

The current study involves the synthesis of novel imidazo[4,5-c]pyridine derivatives (IPD) containing amide/urea/sulfonamide. The synthesized compounds were evaluated for in vitro and in vivo antimycobacterial activities against Mycobacterium tuberculosis. The pharmacological activities were determined by the objective to better understand their structure-activity relationship (SAR) for their in vitro antimycobacterial activity against M. tuberculosis. Some synthesized compounds showed significant activity against M. tuberculosis based on the agar dilution method. Among the forty-one compounds screened, compounds 21, 22 and 23 were found to be the most active compounds against M. tuberculosis. In the in vivo animal model, 21, 22 and 23 decreased the bacterial load in lung and spleen tissues at the dose of 50 mg kg-1 body weight.

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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.166330-10-5, Name is (Oxybis(2,1-phenylene))bis(diphenylphosphine), molecular formula is C36H28OP2. In a Patent，once mentioned of 166330-10-5, SDS of cas: 166330-10-5

A compound of formula (I) which is an agonist at the adenosine Al receptor, wherein Y, Z, and W represent heteroatoms, and salts and solvates thereof, in particular, physiologically acceptable solvates and salts thereof for use in therapy.

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.category: chiral-phosphine-ligands, you can also check out more blogs about166330-10-5

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

Synthetic Route of 161265-03-8, An article , which mentions 161265-03-8, molecular formula is C39H32OP2. The compound – (9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(diphenylphosphine) played an important role in people’s production and life.

The invention relates to a can be used as pharmaceutical intermediates of the formula (III) as shown in the synthesis method of a phenothiazine compound, said method comprising: room temperature, is added to the organic solvent in the following formula (I) compounds, of formula (II) compound, catalyst, ligand, alkali and an auxiliary, heating up to 70 – 90 C and stirring the reaction 7 – 10 hours, after the reaction after treatment, thereby obtaining states the type (III) compound, wherein R1 , R2 Are each independently selected from H, C1 – C6 Alkyl, C1 – C6 Alkoxy or halogen; X is halogen. The method through the appropriate use of the reactant, and catalyst, ligand, alkali, compounding chemicals and organic solvent with the comprehensive selective synergy, thus can yield to obtain the target product, it has good application prospects and industrial production potential. (by machine translation)

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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. 161265-03-8, Name is (9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(diphenylphosphine), molecular formula is C39H32OP2. In a Chapter，once mentioned of 161265-03-8, Application In Synthesis of (9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(diphenylphosphine)

Oxidation reactions of C-H bonds are fundamental in modern organic synthesis and always attract much attention. Over the last three decades, remarkable progress in the oxidation of allylic and benzylic C-H bonds has been made, whereas only a few examples of the oxidation of propargylic C-H bonds have been reported. In this review, the catalytic oxidation of allylic, benzylic, and propargylic C-H bonds is summarized. It covers the construction of C-O, C-N, C-C, and C-F bonds. Some rare examples of C-B and C-Si bond formation in benzylic oxidations are also included.

Sometimes chemists are able to propose two or more mechanisms that are consistent with the available data.Application In Synthesis of (9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(diphenylphosphine), If a proposed mechanism predicts the wrong experimental rate law, however, the mechanism must be incorrect.Welcome to check out more blogs about 161265-03-8, 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

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

A series of diiron dithiolate complexes bearing phosphine or isocyanide ligands, as the active site models of [FeFe]H2ases, has been prepared by carbonyl substitution and structurally characterized. While complexes [(mu-EDT)Fe2(CO)5L1] (EDT = SCH 2CH2S, L1 = PPh3, 3; Ph 2PCH2PPh2, 4; tBuNC, 5) were prepared by reactions of (mu-EDT)Fe2(CO)6 (1) with PPh3, Ph2PCH2PPh2 (dppm), or tBuNC in the presence of Me3NO·2H2O in MeCN in 52-82% yields, complex (mu-EDT)Fe2(CO)4( tBuNC)2 (6) was produced by reaction of 1 with 2 equivalents of tBuNC in CH2Cl2 in 42% yield. Treatment of 1 or (mu-PDT)Fe2(CO)6 (PDT = SCH 2CH2CH2S) (2) with Me3NO· 2H2O followed by addition of 4-PyN(PPh2)2 (Py = C5H4N) gave unexpected products (mu-EDT)Fe 2(CO)5[Ph2PP(O)Ph2] (7), (mu-EDT)Fe2(CO)5(Ph2PNHPy-4) (8), (mu-PDT)Fe2(CO)5[Ph2PP(O)Ph2] (9), and (mu-PDT)Fe2(CO)5(Ph2PNHPy-4) (10) in 20-38% yields, respectively. In addition, the asymmetrically disubstituted complex (mu-EDT)Fe2(CO)4(Ph2PCH 2CH2PPh2) (11) was obtained by reaction of 1 with Ph2PCH2CH2PPh2 (dppe) in refluxing xylene in 31% yield, whereas reaction of 2 with 1,1?- bis(diphenylphosphino)ferrocene (dppf) in refluxing xylene afforded the symmetrically disubstituted complex (mu-PDT)Fe2(CO) 4[(eta5-Ph2PC5H4) 2Fe] (12) in 28% yield. The complexes 3-9, 11, and 12 were characterized by elemental analysis, IR, and NMR spectroscopy, as well as for 3-7, 9, 11, and 12 by X-ray crystallography.

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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

High-pressure nuclear magnetic resonance and infrared study of the hydroformylation of 1-hexene in the presence of rhodium(1) complexes acting as catalysts was presented. The catalysts exhibited good activity and moderate regioselectivity. It was found that the formation of kinetic dicarbonyl products at room temperature took place, irrespective of the rhodium precursor. Square-planar dicarbonyl complexes containing two cis carbonyl groups were also obtained.

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

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, Product Details of 12150-46-8

The inter-triangular diphosphine bridge in [AuMn2(CO)8(mu-PPh2)]2(mu-P-P) turns into an intra-triangular one as it undergoes amine-oxide-promoted decarbonylation to give (P-P)-AuMn2(CO)7(mu-PPh2) (P-P = Ph2P-X-PPh2; X = (CH2)n, Fe(C5H4)2; n = 1-4) in the presence of the corresponding free diphosphine. The resultant triangular cluster contains a heterometallic Au-Mn bond overbridged by all common diphosphines attempted, including dppf (X = Fe(C5H4)2) and dppp (n = 3). The Au-Mn bond supported by dppf (2.6797(7) A) is shorter than that supported by dppe (n = 2) (2.756(2) A) or dppp (2.7643(4) A).

Sometimes chemists are able to propose two or more mechanisms that are consistent with the available data.Product Details of 12150-46-8, 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

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.Quality Control of: 1,1-Bis(diphenylphosphino)ferrocene

A study has been made of the possibility of increasing the stability of the 1,1?-bis(diphenylphosphino)ferrocenium monocation by introduction of appropriate substituents into the cyclopentadienyl ligands. The electrochemical behaviour of a series of 1,1?-bis(diphenylphosphino)ferrocenes bearing substituents with a range of electronic properties has been examined. The results reveal that, the higher the electron-donating ability of the substituents, the longer is the lifetime of the corresponding 1,1?-bis(diphenylphosphino)ferrocenium monocation. However, no stable ferrocenium cation has been obtained; mass spectrometry shows that mixtures of mono- and di-bis(diphenylphosphine)oxides are ultimately formed as products resulting from decomposition of the initially electrogenerated 1,1?-bis(diphenylphosphino)ferrocenium species.

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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.

Copper(I) forms mixed ligand coordination compounds with the stable, paramagnetic bipyridine analogue, 1,5-dimethyl-3-(2-pyridyl)-6-oxoverdazyl (pyvd) and a variety of monodentate and bidentate phosphine ligands. These compounds were characterized in solution by titration, UV-vis spectra, ESR spectra and electrospray mass spectrometry. Coordination of the phosphine gives a metal-ligand charge transfer transition in the UV-vis that is red shifted by more electron donating phosphines. ESR indicates that spin density on copper increases, both with strongly electron donating phosphines and with weakly basic phosphite ligands. This can be explained by the presence of two different orbital interactions: with more donating phosphines the interaction is predominantly through the filled copper(I) d-orbitals, but with weakly donating phosphite ligands the interaction is through an empty copper(I) p-orbital. The differing spin transfer mechanisms may have implications in the design of molecular magnetic systems.

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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