Category: 75732-01-3

Computed Properties of C9H11Cu. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: Mesitylcopper(I), is researched, Molecular C9H11Cu, CAS is 75732-01-3, about 1,4-Addition of Diorganozincs to α,β-Unsaturated Ketones Catalyzed by a Copper(I)-Sulfonamide Combined System. Author is Kitamura, Masato; Miki, Takashi; Nakano, Keiji; Noyori, Ryoji.

A mixture of CuCN and N-benzylbenzenesulfonamide catalyzes the 1,4-addition of dialkylzincs or diarylzincs (Cu : Zn = 1 : 200 to 1 : 10000) to α,β-unsaturated ketones to give, after aqueous workup, the corresponding β-substituted ketones in nearly quant. yields. A range of cyclic enones having s-cis or s-trans geometries as well as conformationally flexible acyclic enones are usable as substrates. The Et group migrates more readily than the Me and Ph groups. CuOTf, CuO-t-C4H9, and mesitylcopper can be used in place of CuCN. The in situ-formed alkylzinc enolate, prior to aqueous workup, further undergoes an aldol reaction with aldehydes or Pd(0)-assisted coupling with allyl acetate, resulting in regio-controlled, vicinal carbacondensation products. A catalytic cycle is proposed on the basis of a kinetic study and a structural anal. of the zinc enolate product by NMR and mol. weight measurements.

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Reference:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Safety of Mesitylcopper(I). The protonation of heteroatoms in aromatic heterocycles can be divided into two categories: lone pairs of electrons are in the aromatic ring conjugated system; and lone pairs of electrons do not participate. Compound: Mesitylcopper(I), is researched, Molecular C9H11Cu, CAS is 75732-01-3, about Synthesis and Structures of Group 11 Metal Triazenide Complexes: Ligand Supported Metallophilic Interactions. Author is Johnson, Andrew L.; Willcocks, Alexander M.; Richards, Stephen P..

A homologous and homoleptic series of stable Group 11 metal triazenide complexes with the general formula [M(L’)]n (M = Cu or Au, n = 2; M = Ag, n = 3) featuring the bulky triazenide ligand N,N’-bis(2,6-di-isopropylphenyl)triazene, L’H, have been prepared by the reaction of Li[L’] with the metal chlorides, CuCl, AgCl, and [(THT)AuCl], resp., in a 1:1 stoichiometric ratio. The compounds [Cu2(L’)2] and [Au2(L’)2] crystallized as dimers with M···M separations of 2.4458(4) Å and 2.6762(4) Å, resp. In comparison, the reaction of AgCl with Li[L’] results in the formation of the tri-silver complex [Ag3(L’)3] with Ag···Ag separations of 3.01184(17) Å, 2.95329(17) Å, and 2.92745(16) Å. Attempts to react the parent triazene system L’H with [Cu(mesityl)] resulted in the formation of the novel tri-copper system [Cu3(L’)2(mesityl)]. In all cases the mol. structures of the resultant complexes have been unambiguously determined by single crystal X-ray diffraction experiments

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Reference:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Related Products of 75732-01-3. The protonation of heteroatoms in aromatic heterocycles can be divided into two categories: lone pairs of electrons are in the aromatic ring conjugated system; and lone pairs of electrons do not participate. Compound: Mesitylcopper(I), is researched, Molecular C9H11Cu, CAS is 75732-01-3, about The influence of tetrahydrofuran on the structures and reactivities of lithium organo-amidocuprates. Author is Bomparola, Roberta; Davies, Robert P.; Hornauer, Stefan; White, Andrew J. P..

The organo-amidocuprate [Cu2Li2Mes2(N(CH2Ph)2)2] is solvated by thf to yield the monomeric contact ion pair complex [MesCuN(CH2Ph)2.Li(thf)3] in which the Li cation is bound to the amido nitrogen; this behavior differs significantly from that observed in diorganocuprates which favor solvent sep. ion pairs.

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Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Lopes, Cesar; Hakansson, Mikael; Jagner, Susan published an article about the compound: Mesitylcopper(I)( cas:75732-01-3,SMILESS:[Cu]C1=C(C)C=C(C)C=C1C ).Quality Control of Mesitylcopper(I). Aromatic heterocyclic compounds can be classified according to the number of heteroatoms or the size of the ring. The authors also want to convey more information about this compound (cas:75732-01-3) through the article.

Carbonylation of 2,6-diphenylphenoxocopper(I), tetrameric [(CuOC6H3Ph2)4] (1), results in a [{Cu(OC6H3Ph2)(CO)}2] dimer (2). The parent aryl oxide, [(CuOC6H3Ph2)4], which was prepared from mesitylcopper(I) and 2,6-diphenylphenol, has an approx. planar Cu4O4 core, in which Cu(I) is two-coordinated and Cu-O bonds range from 1.834(7) to 1.865(7) Å. Its carbonylation product 2 is a μ2-phenoxo-bridged dimer, containing three-coordinated Cu(I), with longer Cu-O bonds, viz. 1.953(7)-1.995(7) Å. Cu-C bond lengths in 2 are 1.78(1) and 1.79(1) Å, resp., with both carbonyl C-O distances equal to 1.12(1) Å, and Cu-C-O angles of 174(1) and 179(1)°, resp. Carbonyl stretching frequencies in the IR are 2099, 2103, and 2112 cm-1 for the solid and 2102 cm-1 in toluene solution, and the 13C NMR signal (toluene solution) is at 168 ppm. From comparison with other carbonyl complexes of Cu(I), the Cu-C bond is judged to be predominantly of σ character, with minimal metal → ligand π* contribution. Both 1 and 2 retain their aggregation states on dissolution in nonpolar solvents, as ascertained by cryoscopic mol. weight determinations of the compounds in benzene. Crystal data: 1, triclinic, space group P1̅, a 12.738(9), b 22.426(5), and c 9.984(3) Å, α 101.62(2), β 91.02(4), and γ 85.93(3)°, Z = 2, R = 0.052 (Rw = 0.058); 2, triclinic, space group P1̅, a 10.67(3), b 15.72(1), and c 10.05(1) Å, α 96.99(8), β 104.66(16), and γ 101.46(12)°, Z = 2, R = 0.049 (Rw = 0.054).

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Reference:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Heterocyclic compounds can be divided into two categories: alicyclic heterocycles and aromatic heterocycles. Compounds whose heterocycles in the molecular skeleton cannot reflect aromaticity are called alicyclic heterocyclic compounds. Compound: 75732-01-3, is researched, Molecular C9H11Cu, about Structural Snapshots of a Flexible Cu2P2 Core that Accommodates the Oxidation States CuICuI, Cu1.5Cu1.5, and CuIICuII, the main research direction is copper phosphido dinuclear preparation structure electrochem oxidation luminescence; crystal structure copper dinuclear phosphinophenylphosphido complex.Formula: C9H11Cu.

The phosphido-bridged dicopper(I) complex {(PPP)Cu}2 was synthesized and structurally characterized ([PPP]- = bis(2-diisopropylphosphinophenyl)phosphide). Cyclic voltammetry of {(PPP)Cu}2 in THF shows fully reversible oxidations at -1.02 V (Cu1.5Cu1.5/CuICuI) and -0.423 V (CuIICuII/Cu1.5Cu1.5). Chem. oxidation of {(PPP)Cu}2 by one electron yields the class III mixed-valence species [{(PPP)Cu}2]+ (EPR, UV-visible). Structural data establish an unexpectedly large change (0.538 Å) in the Cu···Cu distance upon oxidation state. Oxidation of {(PPP)Cu}2 by two electrons yields the dication [{(PPP)Cu}2]2+, an antiferromagnetically coupled dicopper(II) complex. Maintenance of a pseudotetrahedral geometry that is midway between a square plane and an ideal tetrahedron at the copper centers, along with a high degree of flexibility at the phosphide hinges, allows for efficient access to CuICuI, Cu1.5Cu1.5, and CuIICuII redox states without the need for ligand exchange, substitution, or redistribution processes.

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Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Product Details of 75732-01-3. The reaction of aromatic heterocyclic molecules with protons is called protonation. Aromatic heterocycles are more basic than benzene due to the participation of heteroatoms. Compound: Mesitylcopper(I), is researched, Molecular C9H11Cu, CAS is 75732-01-3, about Volatile copper and barium-copper alkoxides. Crystal structure of a tricoordinate copper(II) complex, Ba(Cu[OCMe(CF3)2]3)2. Author is Purdy, Andrew P.; George, Clifford F..

Volatile (sublimes 70-90° in vacuo) Ba{Cu[OCMe(CF3)2]3}2 (I) was synthesized from a reaction between CuCl2 and Ba[OCMe(CF3)2]2 in Et2O or THF. I crystallizes as monoclinic, space group C2/c, a 23.843(12), b 18.324(8), c 10.998(6) Å, β 116.97°, Z = 4, R = 0.064, Rw = 0.080. The Cu(II) centers are 3-coordinate and planar, with Cu-O distances of 1.889(6), 1.878(7), and 1.781(7) Å, and the Ba-O distances are 2.636(8) and 2.644(6) Å. Ba2+ is coordinated to 8 F- with Ba-F distances 2.940(8)-3.14(1) Å. All the O and F atoms coordinated to Ba are on the same 2 Cu[OCMe(CF3)2]3- fragments. An extremely volatile (transports in vacuo below room temperature) Cu4(OC(CF3)3)4 (II) and its etherates were synthesized from a reaction between CuCl2 and Ba[OC(CF3)3]2 in Et2O. The elemental anal. of II was consistent with the formula Cu4[OC(CF3)3]7 but that could not be confirmed by other method. [CuOC(CF3)3]n (sublimes 40-50°) was synthesized from mesitylcopper and HOC(CF3)3.

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Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Most of the compounds have physiologically active properties, and their biological properties are often attributed to the heteroatoms contained in their molecules, and most of these heteroatoms also appear in cyclic structures. A Journal, Polyhedron called LCu(μ-X)2CuL compounds: An induced cuprophilic interaction, Author is Chen, Peter E.; McNeely, James; Lum, June S.; Gardner, Evan J.; Phillips, Val; Golen, James A.; Rheingold, Arnold L.; Doerrer, Linda H., which mentions a compound: 75732-01-3, SMILESS is [Cu]C1=C(C)C=C(C)C=C1C, Molecular C9H11Cu, Related Products of 75732-01-3.

A trio of dimeric copper(I) complexes of the formula [(Ph3P)Cu(μ-X)2Cu(PPh3)] (X = OC6F5, 1, OC4F9, 2, OCPh(CF3)2, 3) were prepared and characterized by X-ray crystallog., elemental anal., and NMR spectroscopy (1H, 13C, 19F, 31P), as was the monomeric [(cy3P)Cu(OC4F9)] (cy = cyclohexyl, 4). Solution conductivity studies demonstrate that all three new dinuclear compounds, as well as the known [(Ph3P)Cu(μ-OC4H9)2Cu(PPh3)], 2-H, are neutral species in solution and do not rearrange into ion pairs. The fold angle (β) varies among these four dimers and the Cu(I)···Cu(I) distance in the structure of 2, 2.8315(5) Å, is cuprophilic. The Cu(I)···Cu(I) distances for 1, 2-H, and 3 are 3.0533(5), 2.890(2), and 3.0169(6) Å resp. D. functional theory (DFT) calculations were performed on 1, 2, 3, and 2-H, as well as the hypothetical 1-H, and several related models. Five PMe3 models, 1(Me), 1-H(Me), 2(Me), 2-H(Me), and 3(Me) were also studied as well as five monomers [(Me3P)CuX] 1-mon, 1-H(mon), 2-mon, 2-H(mon), and 3-mon to understand the electronic reasons for folding in this group of compounds A Natural Energy Decomposition Anal. (NEDA) indicates that electrostatic stabilizations are the dominant factor governing the strength of interaction between monomeric fragments in 1(Me)-3(Me). NBO anal. reveals that 1(Me) and 1-H(Me) do not display any cuprophilic interactions. The folding angle observed in 2(Me), 2-H(Me), and 3(Me), which is correlated with an increased delocalization from the oxygen 2pz lone pairs, brings the metal centers into sufficient propinquity to have weak Cu···Cu orbital interactions. Weak luminescence behavior at room-temperature is also consistent with these assignments.

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Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Safety of Mesitylcopper(I). The mechanism of aromatic electrophilic substitution of aromatic heterocycles is consistent with that of benzene. Compound: Mesitylcopper(I), is researched, Molecular C9H11Cu, CAS is 75732-01-3, about Copper(I)-Catalyzed Enantioselective Addition of Enynes to Ketones. Author is Wei, Xiao-Feng; Xie, Xiao-Wei; Shimizu, Yohei; Kanai, Motomu.

A copper(I)-catalyzed enantioselective addition of enynes to ketones was developed. The method allows facile construction of enantiomerically enriched tertiary alcs. using skipped enynes as stable hydrocarbon pronucleophiles. The combination of a soft copper(I)-conjugated Bronsted base catalyst with a chiral diphosphine ligand, (S,S)-Ph-BPE, enabled chemoselective deprotonation of the skipped enynes in the presence of ketones bearing intrinsically more acidic α-protons. The catalytically generated chiral allylcopper species enantio-, diastereo-, regio-, and chemoselectively reacted with ketones, thereby demonstrating excellent substrate generality with functional group tolerance. The skipped enyne moieties of the pronucleophiles were exclusively converted to cis-conjugated enynes, which will eventually allow for further versatile transformations.

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Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Computed Properties of C9H11Cu. Aromatic heterocyclic compounds can also be classified according to the number of heteroatoms contained in the heterocycle: single heteroatom, two heteroatoms, three heteroatoms and four heteroatoms. Compound: Mesitylcopper(I), is researched, Molecular C9H11Cu, CAS is 75732-01-3, about Copper(I) Complexes of a Heavily Fluorinated β-Diketiminate Ligand: Synthesis, Electronic Properties, and Intramolecular Aerobic Hydroxylation. Author is Laitar, David S.; Mathison, Casey J. N.; Davis, William M.; Sadighi, Joseph P..

The aza-Wittig reaction between Arf-N:PPh3 [Arf = 3,5-(CF3)2C6H3] and 1,1,1,5,5,5-hexafluoro-2,4-pentanedione affords a new, highly fluorinated β-diketimine, 1. Metalation by mesitylcopper(I) in benzene gives rise to the Cu(I) β-diketiminate as its η2-benzene adduct, 2a. Cu(I) carbonyl complexes of 1, and of three less-fluorinated analogs, were generated in situ and compared by IR spectroscopy; the two backbone CF3 groups exert a stronger electronic influence than the four N-aryl CF3 groups. Dinuclear adduct 2b reacts readily with O2, leading to ortho-hydroxylation of a ligand N-Arf group.

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Krieck, Sven; Goerls, Helmar; Westerhausen, Matthias published an article about the compound: Mesitylcopper(I)( cas:75732-01-3,SMILESS:[Cu]C1=C(C)C=C(C)C=C1C ).Application of 75732-01-3. Aromatic heterocyclic compounds can be classified according to the number of heteroatoms or the size of the ring. The authors also want to convey more information about this compound (cas:75732-01-3) through the article.

The addition of [(L)4Ca(I)Mes] (Lewis base L = thf, Et2O) to mesityl copper(I) and the transmetalation reaction of mesityl copper(I) with activated calcium are suitable pathways for the synthesis of dimesityl cuprates(I) of calcium. However, the structures of the calcium cuprates(I) depend on the preparative procedure. The transmetalation reaction leads to the formation of [Mes-Cu-Mes]- anions whereas the addition yields dinuclear [(Mes-Cu)2(μ-Mes)]- anions. The solvent-separated counterions are [Ca(thf)6]2+ and [(thf)5CaI]+, resp. In contrast to these findings, the addition of [(L)4Ca(I)Mes] to mesityl copper(I) in an Et2O/toluene mixture led to formation of tetrameric solvent-free iodocalcium dimesityl cuprate(I) [ICa(μ-η1,η6-Mes2Cu)]4, representing a rare example of a heavy Normant-type organocuprate.

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