Tag: 500-600

Iridium-catalyzed enantioselective intramolecular hydroarylation of allylic aryl ethers devoid of a directing group on the aryl group was written by Ohmura, Toshimichi;Kusaka, Satoshi;Suginome, Michinori. And the article was included in Chemical Communications (Cambridge, United Kingdom) in 2021.Name: Chlorobis(ethylene)iridium(I) dimer This article mentions the following:

Iridium/(S)-DTBM-SEGPHOS-catalyzed intramol. hydroarylation of allylic aryl ethers RC₆H₄OCH₂C (=CH₂)(R¹) (R = H, 2-Me, 3-OMe, 4-F, etc.; R¹ = H, Me, OTBS) was described. The reaction eliminates the structural requirement from the aryl group, affording 2,3-dihydrobenzofurans I (R² = H, 7-Me, 6-OMe, 5-F, etc.) bearing a stereogenic carbon center at the C3 position with up to 99% enantiomeric excess. In the experiment, the researchers used many compounds, for example, Chlorobis(ethylene)iridium(I) dimer (cas: 39722-81-1Name: Chlorobis(ethylene)iridium(I) dimer).

Chlorobis(ethylene)iridium(I) dimer (cas: 39722-81-1) belongs to organic chlorides. Organic chlorides are compounds containing a carbon-chlorine bond, which are widely used in the oil field as a wax dissolver. Aliphatic organochlorides are often alkylating agents as chlorine can act as a leaving group, which can result in cellular damage.Name: Chlorobis(ethylene)iridium(I) dimer

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Hydrogenation of Carbon Dioxide with Organic Base by PC^IIP-Ir Catalysts was written by Takaoka, Satoko;Eizawa, Aya;Kusumoto, Shuhei;Nakajima, Kazunari;Nishibayashi, Yoshiaki;Nozaki, Kyoko. And the article was included in Organometallics in 2018.Product Details of 39722-81-1 This article mentions the following:

Novel PCP-Ir^I monochloride complexes [[(1,3-^tBu₂PCH₂)₂BzIm]IrCl] (1-Cl, BzIm-H₂ = 2-benzimidazolylidene) and [[(1,3-^tBu₂PCH₂CH₂)₂Im]IrCl] (2-Cl, Im-H₂ = 2-imidazolylidene) bearing a phosphine-carbene-phosphine pincer type ligand were synthesized. Reactions of 1-Cl with hexachloroethane, hydrogen chloride, and lithium triethylborohydride under a dihydrogen atm. afforded PC^IIP-Ir^III trichloride (1-Cl₃), hydride dichloride (1-HCl₂), and trihydride (1-H₃) complexes, resp. The strong electron-donating ability of carbene in PC^IIP-Ir complexes was confirmed by X-ray crystallog. and DFT calculations Moreover, in complex 1-Cl, strong π back-donation from the iridium center to the carbene carbon was observed Hydrogenation of CO₂ with triethanolamine catalyzed by PC^IIP-Ir complexes was investigated. The novel PC^IIP-Ir complex 1-Cl exhibited a longer lifetime in comparison to the PNP-Ir^III complex [(Ph₂PCH₂)₂PyIrH₃] (3-H₃): the turnover number of 1-Cl is significantly higher than that of 3-H₃ (in 46 h, 1-Cl 230000 and 3-H₃ 54000). In the experiment, the researchers used many compounds, for example, Chlorobis(ethylene)iridium(I) dimer (cas: 39722-81-1Product Details of 39722-81-1).

Chlorobis(ethylene)iridium(I) dimer (cas: 39722-81-1) belongs to organic chlorides. Organic chlorides are compounds containing a carbon-chlorine bond, which are widely used in the oil field as a wax dissolver. Aryl chlorides may be prepared by the Friedel-Crafts halogenation, using chlorine and a Lewis acid catalyst.Product Details of 39722-81-1

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

(-)-2-Menthylindenyl and (-)-2-Menthyl-4,7-dimethylindenyl Complexes of Rhodium, Iridium, Cobalt, and Molybdenum was written by Schumann, Herbert;Stenzel, Oleg;Dechert, Sebastian;Girgsdies, Frank;Halterman, Ronald L.. And the article was included in Organometallics in 2001.COA of Formula: C8H16Cl2Ir2 This article mentions the following:

Optically active complexes of Rh, Ir, Co, and Mo containing the chiral, menthyl-substituted indenyl ligands (-)-2-menthylindene and (-)-2-menthyl-4,7-dimethylindene are described. Metathetic reaction of the chiral lithium salts of these indenyl systems (1, 2, resp.) with the appropriate starting materials of Rh and Ir yielded the complexes (-)-(2-menthylindenyl)Rh(COD) (3), (-)-(2-menthyl-4,7-dimethylindenyl)Rh(COD) (4), (-)-(2-menthylindenyl)Rh(C₂H₄)₂ (5), (-)-(2-menthyl-4,7-dimethylindenyl)Rh(C₂H₄)₂ (6), (-)-(2-menthylindenyl)Ir(COD) (7), (-)-(2-menthylindenyl)Ir(C₂H₄)₂ (8), (-)-(2-menthyl-4,7-dimethylindenyl)Ir(C₂H₄)₂ (9), and (-)-(2-menthyl-4,7-dimethylindenyl)Ir(COE)₂ (10). Co₂(CO)₈ and CoCl₂(dppe) react with (-)-2-menthylindenyllithium (1) yielding (-)-(2-menthylindenyl)Co(CO)₂ (11) and (+)-(2-menthylindenyl)Co(dppe) (12). (-)-Li[(2-menthylindenyl)Mo(CO)₃](THF)₂ (13), formed by transmetalation of Mo(CO)₆, is oxidized by I₂, yielding (-)-(2-menthylindenyl)Mo(CO)₃I (14), or by allylic chloride, yielding (allyl)(2-menthylindenyl)Mo(CO)₂ (15). All compounds were formed stereomerically pure and were obtained after chromatog. by dried alumina under nitrogen. The structures of 3, 4, 6, 7, and 14 were determined by single-crystal x-ray diffractometry. Variable temperature ¹H NMR spectra of 5, 6, 8, and 9 were recorded to determine the energy barriers for rotation of ethylene along the metal-indenyl and metal-ethylene axes. In the experiment, the researchers used many compounds, for example, Chlorobis(ethylene)iridium(I) dimer (cas: 39722-81-1COA of Formula: C8H16Cl2Ir2).

Chlorobis(ethylene)iridium(I) dimer (cas: 39722-81-1) belongs to organic chlorides. Organochlorines are organic compounds having multiple chlorine atoms. They were the first synthetic pesticides that were used in agriculture. They are resistant to most microbial and chemical degradations. Organochlorine compounds are lipophylic, meaning they are more soluble in fat than in water. This gives them a high tenancy to accumulate in the food chain (biomagnification).COA of Formula: C8H16Cl2Ir2

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Bis(cyclopentadienyl)methane-bridged dinuclear complexes. IV. Synthesis, structure, and reactivity of dinuclear rhodium and iridium complexes in the oxidation state +I and +III with the bis(cyclopentadienyl)methane dianion as bridging ligand was written by Werner, Helmut;Treiber, Monja;Nessel, Angelika;Lippert, Ferdinand;Betz, Peter;Krueger, Carl. And the article was included in Chemische Berichte in 1992.Recommanded Product: 39722-81-1 This article mentions the following:

The rhodium compounds [CH₂(C₅H₄)₂][Rh(L)(C₂H₄)]₂ [L = CO, P(CHMe₂)₃ (PiPr₃) (I)] were prepared from [RhCl(L)(C₂H₄)]₂ and CH₂(C₅H₄)₂Li₂ in 92 and 73% yield, resp. The reaction of I (L = PiPr) with X₂ (Cl₂, Br₂, and I₂) led to the almost quant. formation of the dihalo derivatives [CH₂(C₅H₄)₂][RhX₂(PiPr₃)]₂ (II), which on treatment with excess NaBH₄ and methanol gave the dihydride [CH₂(C₅H₄)₂][RhH₂(PiPr₃)]₂ (III). From [RhCl(C₈H₁₄)₂]₂, PiPr₃, and CH₂(C₅H₅)₂ [CH₂(C₅H₄)₂][RhH(Cl)(PiPr₃)₂ was obtained. Protonation of III with CF₃CO₂H in the presence of NH₄PF₆ gave the PF₆ salt of the hydrido-bridged cation {[CH₂(C₅H₄)₂][RhH(PiPr₃)]₂(μ-H)}⁺ of which the crystal structure was determined In solution, fluxional behavior of the cation was observed The di-Me compound [CH₂(C₅H₄)₂][Rh(CH₃)₂(PiPr₃)]₂ prepared from II and LiCH₃ or CH₃MgI in 80% yield, reacted with CF₃CO₂H at -78° to give the trifluoroacetato derivative IV; this on treatment with P(OMe)₃ and dmpe formed dicationic complexes. The dinuclear iridium compounds [CH₂(C₅H₄)₂][Ir(olefin)₂]₂ and [CH₂(C₅H₄)₂][Ir(C₈H₁₂)]₂ were prepared from [IrCl(L)₂]₂ and CH₂(C₅H₄)₂Li₂ and used for the synthesis of {[CH₂(C₅H₄)₂][IrX₂]₂}_n. V (X = Br, iodo) served as starting materials for the preparation of the dinuclear derivatives [CH₂(C₅H₄)₂][IrX₂(L)]₂ and {[CH₂(C₅H₄)₂][IrBr₂]₂(μ-dipy)} and finally also for the dihydrido complex [CH₂(C₅H₄)₂][IrH₂(PiPr₃)]₂. In the experiment, the researchers used many compounds, for example, Chlorobis(ethylene)iridium(I) dimer (cas: 39722-81-1Recommanded Product: 39722-81-1).

Chlorobis(ethylene)iridium(I) dimer (cas: 39722-81-1) belongs to organic chlorides. Chlorinated organic compounds are found in nearly every class of biomolecules and natural products including alkaloids, terpenes, amino acids, flavonoids, steroids, and fatty acids. Aryl chlorides may be prepared by the Friedel-Crafts halogenation, using chlorine and a Lewis acid catalyst.Recommanded Product: 39722-81-1

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Allylic Amination by a DNA-Diene-Iridium(I) Hybrid Catalyst was written by Fournier, Pierre;Fiammengo, Roberto;Jaeschke, Andres. And the article was included in Angewandte Chemie, International Edition in 2009.Quality Control of Chlorobis(ethylene)iridium(I) dimer This article mentions the following:

DNA hybrid catalysis goes organometallic: DNA strand functionalized with diene ligands forms iridium(I) complexes that can efficiently catalyze an allylic amination in aqueous medium of PhCH(OAc)CH=CH₂ with morpholine to give the corresponding Ph vinyl derivative I. The DNA-based complexes show high stability and activity, and their secondary structure influences the stereoselectivity of the reaction. In the experiment, the researchers used many compounds, for example, Chlorobis(ethylene)iridium(I) dimer (cas: 39722-81-1Quality Control of Chlorobis(ethylene)iridium(I) dimer).

Chlorobis(ethylene)iridium(I) dimer (cas: 39722-81-1) belongs to organic chlorides. Organochlorines stimulate the central nervous system and cause convulsions, tremor, nausea, and mental confusion. Examples are dichlorodiphenyltrichloroethane (DDT), chlordane, lindane, endosulfan, and dieldrin. Alkanes and aryl alkanes may be chlorinated under free radical conditions, with UV light. However, the extent of chlorination is difficult to control.Quality Control of Chlorobis(ethylene)iridium(I) dimer

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Synthesis and Characterization of Carbazolide-Based Iridium PNP Pincer Complexes. Mechanistic and Computational Investigation of Alkene Hydrogenation: Evidence for an Ir(III)/Ir(V)/Ir(III) Catalytic Cycle was written by Cheng, Chen;Kim, Bong Gon;Guironnet, Damien;Brookhart, Maurice;Guan, Changjian;Wang, David Y.;Krogh-Jespersen, Karsten;Goldman, Alan S.. And the article was included in Journal of the American Chemical Society in 2014.Synthetic Route of C8H16Cl2Ir2 This article mentions the following:

New carbazolide-based Ir pincer complexes (^carbPNP)Ir(C₂H₄) (3a, ^carbPNPH = 1,8-bis[(diisopropylphosphino)methyl]-3,6-dimethyl-9H-carbazole) and (^carbPNP)Ir(H)₂ (3b) were prepared and characterized. The dihydride, 3b, reacts with ethylene to yield the cis-dihydride ethylene complex cis-(^carbPNP)Ir(C₂H₄)(H)₂. Under ethylene this complex reacts slowly at 70° to yield ethane and the ethylene complex, 3a. Kinetic anal. establishes that the reaction rate is dependent on ethylene concentration and labeling studies show reversible migratory insertion to form an Et hydride complex prior to formation of 3a. Exposure of cis-(^carbPNP)Ir(C₂H₄)(H)₂ to H results in very rapid formation of ethane and dihydride, 3b. DFT anal. suggests that ethane elimination from the Et hydride complex is assisted by ethylene through formation of (^carbPNP)Ir(H)(Et)(C₂H₄) and by H₂ through formation of (^carbPNP)Ir(H)(Et)(H₂). Elimination of ethane from Ir(III) complex (^carbPNP)Ir(H)(Et)(H₂) is calculated to proceed through an Ir(V) complex (^carbPNP)Ir(H)₃(Et) which reductively eliminates ethane with a very low barrier to return to the Ir(III) dihydride, 3b. Under catalytic hydrogenation conditions (C₂H₄/H₂), cis-(^carbPNP)Ir(C₂H₄)(H)₂ is the catalyst resting state, and the catalysis proceeds via an Ir(III)/Ir(V)/Ir(III) cycle. This is in sharp contrast to isoelectronic (PCP)Ir systems in which hydrogenation proceeds through an Ir(III)/Ir(I)/Ir(III) cycle. The basis for this remarkable difference is discussed. In the experiment, the researchers used many compounds, for example, Chlorobis(ethylene)iridium(I) dimer (cas: 39722-81-1Synthetic Route of C8H16Cl2Ir2).

Chlorobis(ethylene)iridium(I) dimer (cas: 39722-81-1) belongs to organic chlorides. Chlorination modifies the physical properties of hydrocarbons in several ways. These compounds are typically denser than water due to the higher atomic weight of chlorine versus hydrogen. Alkyl chlorides are versatile building blocks in organic chemistry. While alkyl bromides and iodides are more reactive, alkyl chlorides tend to be less expensive and more readily available.Synthetic Route of C8H16Cl2Ir2

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Chloro- and bromo(alkene)iridium(I) complexes was written by Onderdelinden, A. L.;Van der Ent, A.. And the article was included in Inorganica Chimica Acta in 1972.Product Details of 39722-81-1 This article mentions the following:

Chloro- and bromo(alkene)iridium(I) complexes were prepared by the reaction of monoenes, acyclic conjugated dienes, and cyclic polyenes with the cyclooctene complexes IrX(C8H14)2 (X = Cl or Br). IrCl(C2H4)4 is an unstable 5-coordinated compound from which the planar Cl-bridged dimer [IrCl(C2H4)2]2 is formed upon ethylene dissociation From the absence of broadening of the ethylene PMR resonances in CHCl3 upon cooling to -60°,low barriers to rotation of the ethylene ligands around the metal-alkene bond were concluded. In PhMe the appearance at -60° of the frozen out-situation for the equatorial ligands suggested a considerably higher barrier for these ligands in this solution The equatorial ethylene ligands show slow exchange with free ethylene by an associative mechanism. Acyclic conjugated dienes formed 5-coordinated complexes of the type IrX(alkene)2. 1,5-Cyclooctadiene formed the dimer complexes [IrX(C8H12)]2 and the monomer complexes IrX(C8H12)2. The investigation of the bromo compounds was limited to their identification by elementary anal. and by their ir spectrum in the 4000-400 cm-1 region. Their far-ir spectra were used as an aid in the assignment of the ν(Ir-Cl) in the corresponding chloro compounds From the comparison of the far-ir spectra of corresponding chloro-(alkene)rhodium(I) and -ir(I) complexes the metal-alkene as well as the metal-Cl bonds are stronger in the Ir(I) compounds In the experiment, the researchers used many compounds, for example, Chlorobis(ethylene)iridium(I) dimer (cas: 39722-81-1Product Details of 39722-81-1).

Chlorobis(ethylene)iridium(I) dimer (cas: 39722-81-1) belongs to organic chlorides. Organic chlorides can be used in production of: PVC, pesticides, chloromethane, teflon, insulators. Aryl chlorides may be prepared by the Friedel-Crafts halogenation, using chlorine and a Lewis acid catalyst.Product Details of 39722-81-1

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Rh^I, Ir^III ,and Co^III Complexes with Atropchiral Biaryl Cyclopentadienyl Ligands: Syntheses, Structures, and Catalytic Activities was written by Duchemin, Coralie;Smits, Gints;Cramer, Nicolai. And the article was included in Organometallics in 2019.Name: Chlorobis(ethylene)iridium(I) dimer This article mentions the following:

Chiral cyclopentadienyl (Cp^x) group 9 metal complexes have become versatile catalysts for a variety of efficient enantioselective C-H functionalizations. Atropchiral binaphthyl-derived Cp^x ligands and their complexes I (M = Rh; L₁L₂ = COD, X absent; M = Co, L¹, X = I, L² = CO; M = 1/2 Ir, L¹, X = I, L² absent) having tuning options at the 3,3′-positions (R¹ = halo, silyl, OMe; R²R³ = benzo or R² = OMe, R³ = H) present a robust choice of catalyst, giving high enantioselectivities and good reactivities. Herein, we report streamlined syntheses of binaphthyl backbone Cp^x ligands that feature new substituents at the 3,3′-positions: namely, trimethylsilyl, I, and Br. We introduce as well Cp^x ligands with a new atropchiral MeO-biphenyl backbone. All ligands are smoothly complexed with rhodium(I) salts. The Cp^xRh^I complexes obtained were systematically mapped by X-ray crystal anal. in order to collect steric parameters that might guide a rational selection of the chiral Cp^x ligand for enantioselective reactions. The catalytic performances of the complexes were evaluated by two Rh^III-catalyzed C-H functionalizations as benchmark transformations. In both cases, a simpler to access ligand provided superior reactivity and enantioselectivity. Addnl., related Cp^xCo^III and Cp^xIr^III complexes equipped with the developed ligands were prepared and characterized. In the experiment, the researchers used many compounds, for example, Chlorobis(ethylene)iridium(I) dimer (cas: 39722-81-1Name: Chlorobis(ethylene)iridium(I) dimer).

Chlorobis(ethylene)iridium(I) dimer (cas: 39722-81-1) belongs to organic chlorides. An organic chloride is an organic compound containing at least one covalently bonded atom of chlorine. Their wide structural variety and divergent chemical properties lead to a broad range of names and applications.While alkyl bromides and iodides are more reactive, alkyl chlorides tend to be less expensive and more readily available. Alkyl chlorides readily undergo attack by nucleophiles.Name: Chlorobis(ethylene)iridium(I) dimer

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Ligand-ligand interactions and low frequency vibrations in chlorotetrakis(ethylene)iridium and bis(ethylene)chloroiridium dimer studied by inelastic neutron scattering and optical spectroscopy was written by Howard, Joseph;Waddington, Thomas C.. And the article was included in Journal of the Chemical Society, Faraday Transactions 2: Molecular and Chemical Physics in 1978.Computed Properties of C8H16Cl2Ir2 This article mentions the following:

Incoherent inelastic neutron-scattering and Raman spectra were obtained for Ir(C₂H₄)₄Cl (I) and [Ir(C₂H₄)₂Cl]₂ and a model was proposed for the interaction between the C₂H₄ ligands in I. The torsion of the axial C₂H₄ ligand was assigned at 45 cm^-1 and the in-phase and out-of-phase torsions of the equatorial ligands assigned at 172 and 240 cm^-1 resp. In the experiment, the researchers used many compounds, for example, Chlorobis(ethylene)iridium(I) dimer (cas: 39722-81-1Computed Properties of C8H16Cl2Ir2).

Chlorobis(ethylene)iridium(I) dimer (cas: 39722-81-1) belongs to organic chlorides. An organic chloride is an organic compound containing at least one covalently bonded atom of chlorine. Their wide structural variety and divergent chemical properties lead to a broad range of names and applications. Organochlorine compounds are lipophylic, meaning they are more soluble in fat than in water. This gives them a high tenancy to accumulate in the food chain (biomagnification).Computed Properties of C8H16Cl2Ir2

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Basic metals. LXII. Preparation and reactions of the metal bases C₅H₅Ir(L)P(CHMe₂)₃ and C₅H₅IrL₂ (L = olefin) was written by Dziallas, M.;Hoehn, A.;Werner, H.. And the article was included in Journal of Organometallic Chemistry in 1987.Synthetic Route of C8H16Cl2Ir2 This article mentions the following:

The reaction of the chloro-bridged compounds [(olefin)₂IrCl]₂ (olefin = C₈H₁₄, C₂H₄, C₃H₆) with P(CHMe₂)₃ and LiC₅H₅ produces the half-sandwich type complexes, C₅H₅Ir(olefin)P(CHMe₂)₃ (I). For cyclooctene, the intermediate [(C₈H₁₄)[P(CHMe₂)₃]IrCl]₂ was isolated. I behave as metal bases and reacts with MeI to form C₅H₅IrCH₃[P(CHMe₂)₃]I (II). Subsequent reaction of II with NaBH₄ produces the hydrido(methyl)iridium complex C₅H₅IrCH₃[P(CHMe₂)₃]H. Protonation of I with HBF₄.OEt₂ leads to the formation of BF₄ salts of the cations [C₅H₅IrH(olefin)P(CHMe₂)₃]⁺. C₅H₅Ir(C₃H₆)P(CHMe₂)₃, obtained as two isomers, reacts with HBF₄.OEt₂ to give four isomers in a 73:16:7:4 ratio. Rotation of the olefin around the metal-olefin axes in I (olefin = C₂H₄, C₃H₆) can not be detected at room temperature The bis(olefin)iridium complexes, C₅H₅Ir(olefin)₂, which were prepared from [(olefin)₂IrCl]₂ and LiC₅H₅, also react with HBF₄.OEt₂ to give ionic products. In the experiment, the researchers used many compounds, for example, Chlorobis(ethylene)iridium(I) dimer (cas: 39722-81-1Synthetic Route of C8H16Cl2Ir2).

Chlorobis(ethylene)iridium(I) dimer (cas: 39722-81-1) belongs to organic chlorides. Organochlorines are organic compounds having multiple chlorine atoms. They were the first synthetic pesticides that were used in agriculture. They are resistant to most microbial and chemical degradations. Alkanes and aryl alkanes may be chlorinated under free radical conditions, with UV light. However, the extent of chlorination is difficult to control.Synthetic Route of C8H16Cl2Ir2

Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics