Tag: M.W:200-300

Application In Synthesis of Bromoferrocene. So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic. Compound: Bromoferrocene, is researched, Molecular C10BrFe, CAS is 1273-73-0, about Synthesis, X-ray structure and chemical properties of 17α-ferrocenylestradiol.

The X-ray structure of 17α-ferrocenylestradiol shows that the ferrocenyl group is at the α-position of the steroid, below the plane of the D ring. From acidic medium it is possible to obtain and isolate the derivative with a carbenium ion in 17-α position. This ion is transformed by various nucleophiles into the C(16)-C(17)-unsaturated derivative With NaBH4 in acidic medium the reduction leads to a mixture of 17α- and 17β-ferrocenylestrol with a predominance of the β product, owing to a more favorable entrance of hydride in the α position. The oxidized derivative 17α-ferrociniumylestradiol tetrafluoroborate was prepared and its properties are described.

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Quality Control of Bromoferrocene. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: Bromoferrocene, is researched, Molecular C10BrFe, CAS is 1273-73-0, about Energy barrier to internal rotation in some ferrocene derivatives from dielectric measurements. Author is Sorriso, Salvatore.

Dipole moments have been measured in n-decane at 5-130° for the compounds monochloro-, 1,1′-dichloro-, monobromo-, 1,1′-dibromo-, monoiodo-, and 1,1′-diiodoferrocene. The energy barriers to rotation of the two cyclopentadiene rings about the bond to iron have been calculated Free rotation exists in the parent mol., ferrocene. Steric effects between the halo substituents of one ring and the H atoms of the other ring are small.

Here is just a brief introduction to this compound(1273-73-0)Quality Control of Bromoferrocene, more information about the compound(Bromoferrocene) is in the article, you can click the link below.

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The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《Synthesis of chiral ferrocenylazines. Negishi cross-coupling or SNH reactions?》. Authors are Musikhina, A. A.; Utepova, I. A.; Serebrennikova, P. O.; Chupakhin, O. N.; Charushin, V. N..The article about the compound:Bromoferrocenecas:1273-73-0,SMILESS:Br[C-]12[Fe+2]3456789([C-]%10C6=C7C8=C9%10)C1=C3C4=C25).Synthetic Route of C10BrFe. Through the article, more information about this compound (cas:1273-73-0) is conveyed.

Preparation of new hetaryl-containing planar chiral ferrocene by a nucleophilic substitution of hydrogen in azines was performed using a lithium derivative of (S)-ferrocenyl-p-tolylsulfoxide as s nucleophilic reagent.

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Carre, Francis; Guerin, Christian; Henner, Bernard J. L.; Uerpmann, Carsten published an article about the compound: Bromoferrocene( cas:1273-73-0,SMILESS:Br[C-]12[Fe+2]3456789([C-]%10C6=C7C8=C9%10)C1=C3C4=C25 ).Electric Literature of C10BrFe. 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:1273-73-0) through the article.

The synthesis of 1,1′-bis(N-tert-butyl-N-hydroxyamino)ferrocene (1) is described, and the x-ray anal. showed eclipsed positions of the two tert-butylhydroxyamino groups. This structure can be explained by the interactions of the hydroxyl hydrogens with the N atoms of the other tert-butylhydroxyamino group. This interaction is maintained in solution and may explain that the oxidation of 1 using Ag2O gave a decomposition reaction instead of the expected 1,1′-bis(N-tert-butylaminoxy)ferrocene. The ESR spectrum of an oxidized solution of 1 showed a 1:1:1 triplet, but it corresponded only to traces of an N-O• radical. Cyclic voltammograms of 1 showed that it is more easily oxidized than ferrocene and less easily than 1,1′-diaminoferrocene, indicating that chem. oxidation of 1 occurs in the ferrocenyl part of the mol., followed by rapid decomposition

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The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《Reaction of metallocenes with thiocyanogen》. Authors are Dove, M. F. A.; Sowerby, D. B..The article about the compound:Bromoferrocenecas:1273-73-0,SMILESS:Br[C-]12[Fe+2]3456789([C-]%10C6=C7C8=C9%10)C1=C3C4=C25).Computed Properties of C10BrFe. Through the article, more information about this compound (cas:1273-73-0) is conveyed.

An Et2O solution of (SCN)2 was added slowly to a solution of ferrocene to give a dark brown, unidentified powder, which was not a simple thiocyanate, although ferricinium ions were present. Using CH2 Cl2 as solvent a darkcolored crystalline product [(C5H5)2Fe]2Fe(NCS)4 precipitated Ir spectra showed strong bands at 3095, 1414, 1010, and 850 cm.-1 characteristic of the ferricinium ion and at 2055, 480, and 262 cm.-1 due to the iron thiocyanate group. The electronic spectrum in a KBr disk showed a strong maximum at 20.3 kK with a shoulder at 15.8 kK. An analogous reaction between cobaltocene and (SCN)2 in Et2 O at room temperature yielded as the main product yellow crystalline cobalticinium thiocyanate as shown by elemental anal., ir and electronic spectra, conductivity, and proton N.M.R.

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Nesmeyanov, A. N.; Sazonova, N. S.; Sazonova, V. A.; Meskhi, L. M. published the article 《1-(1′-Bromoferrocenyl)silver》. Keywords: bismuth estimation; bismuth ferrocene compound; silver ferrocene compound; silver ferrocene compound; ferrocenes; iron organic compound.They researched the compound: Bromoferrocene( cas:1273-73-0 ).Category: thiazolidine. Aromatic heterocyclic compounds can be divided into two categories: single heterocyclic and fused heterocyclic. In addition, there is a lot of other information about this compound (cas:1273-73-0) here.

Treating 0.5 g 1-bromo-1′-ferroceneboronic acid with Ag2O from 0.5 g Ag NO3 in NH4OH and heating briefly gave 53% 1-(1′-bromoferrocenyl)-silver, decomposed 125-6°. This with concentrated HCl 10 min gave 70% bromoferrocene, while pyrolysis in xylene gave a Ag mirror and 60% bis(1′-bromoferrocenyl), m. 138-40°. Treated with HgBr2 in C6H6 the Ag salt gave 80% 1-(1′-bromoferrocenyl)-mercuric bromide, m. 143-5°. The Ag derivative and BiBr3 in C6H6 in 3-4 hrs gave bromoferrocene and 50% tris(1′-bromoferrocenyl)bismuth, m. 179.5-81°. This kept in concentrated HCl 0.5 hr, then treated with aqueous NH4OH to neutrality, then percolated with H2S, gave a precipitate which was used for estimation of Bi after washing and drying to constant weight

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Safety of Bromoferrocene. So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic. Compound: Bromoferrocene, is researched, Molecular C10BrFe, CAS is 1273-73-0, about Cofacial metallocenes. Synthesis and crystal structure of 1,8-diferrocenylnaphthalene.

The optimal synthesis of 1,8-differocenylnaphthalene (I) was the coupling of 1,8-diiodonaphthalene and ferrocenylzinc chloride in the presence of ferrocenylphosphine-containing catalyst PdLCl2, giving 58% of I with 94% selectivity. The x-ray crystal structure of I showed that the naphthalene ring and bonds from the peri-C atoms to the cyclopentadienyl rings were highly distorted. The 2 substituted cyclopentadienyl rings were rotated by ∼46° from the perpendicular to the naphthalene ring. Cyclic voltammetry of I showed 2 reversible, one-electron waves. The monocation I+BF4- derived by oxidation of I with AgBF4, had an intervalence transfer band at 1600 nm (εmax 200), not shown by the corresponding dication of I. I+ was best represented as a weakly interacting mixed-valence system.

Compound(1273-73-0)Safety of Bromoferrocene received a lot of attention, and I have introduced some compounds in other articles, similar to this compound(Bromoferrocene), if you are interested, you can check out my other related articles.

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The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: Bromoferrocene(SMILESS: Br[C-]12[Fe+2]3456789([C-]%10C6=C7C8=C9%10)C1=C3C4=C25,cas:1273-73-0) is researched.Safety of Bromoferrocene. The article 《Substituent effects in the iron 2p and carbon 1s edge near-edge x-ray absorption fine structure (NEXAFS) spectroscopy of ferrocene compounds》 in relation to this compound, is published in Journal of Physical Chemistry A. Let’s take a look at the latest research on this compound (cas:1273-73-0).

The iron 2p and carbon 1s near-edge x-ray absorption fine structure (NEXAFS) spectra of substituted ferrocene compounds, Cp2Fe, Cp*2Fe, CpFe(η5-C5H4Me), CpFe(η5-C5H4Br) CpFe(η5-C5H4CO2H) CpFe(η5-C5H4CH:CH2) (η5-C5H4Me)2Fe, (η5-C5H4Br)2Fe, (η5-C5H4CO2H)2Fe, (η5-C5H4COMe)2Fe are reported and are interpreted with the aid of EHMO (EHMO) theory and d. functional theory (DFT). Significant substituent effects are observed in both the Fe 2p and C 1s NEXAFS spectra. These effects can be related to the electron donating/withdrawing properties of the cyclopentadienyl ligands and their substituents as well as the presence of π* conjugation between the cyclopentadienyl ligand and unsaturated substituents.

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Computed Properties of C10H8BrNO2. 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: 2-(7-Bromo-1H-indol-3-yl)acetic acid, is researched, Molecular C10H8BrNO2, CAS is 63352-97-6, about Molecular recognition of indole derivatives by polymers imprinted with indole-3-acetic acid: A QSPR study. Author is Porobic, Ivana; Kontrec, Darko; Soskic, Milan.

Three molecularly imprinted polymers (MIPs) were prepared using the phytohormone indole-3-acetic acid (IAA) as a template mol., 4-vinylpyridine (MIP-1 and MIP-2) or N,N-dimethylaminoethyl methacrylate (MIP-3) as functional monomers, ethylenglycol dimethacrylate as a cross linker and acetonitrile (MIP-1), a methanol-water mixture (MIP-2) or chloroform (MIP-3) as porogens. Retention factors for IAA and 29 indole derivatives were determined by high-performance liquid chromatog., using the molecularly imprinted polymers as stationary phases and acetonitrile as an eluent. High correlations between selectivity factors of above mentioned polymers indicate that their retention mechanisms are basically the same. A quant. structure-property relationships anal. revealed that the presence of the terminal carboxyl group on the 3-side chain plays an essential role in the binding of the indole derivatives to the polymers. The derivatives without the carboxyl group exhibit a drastically lower affinity toward the polymers. Another factor which favors the binding is electronic d. of indole nucleus. Substituents with electro-withdrawing properties enhance the binding, while electro-donating substituents have the opposite effect. The length of the 3-side chain also affects the binding. Indole-3-carboxylic acid having the carboxyl group directly attached to the ring as well as the derivatives whose side chain is longer than that of IAA bind to the polymers with a lower affinity.

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HPLC of Formula: 1273-73-0. 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: Bromoferrocene, is researched, Molecular C10BrFe, CAS is 1273-73-0, about Isolation, characterization, and synthetic utility of several solid organolithium compounds. Author is Rausch, M. D.; Moser, G. A.; Meade, C. F..

Pentachlorophenyllithium and ferrocenyllithium were isolated and characterized as relatively air-stable solids. The chem. reactivity of these organolithium compounds was investigated, and several carbene complexes of Cr and W were prepared Pentachlorophenyllithium adds to furan and therefore represents a solid benzyne precursor. 1,1′-Dilithioferrocene.2TMEDA (TMEDA = N,N,N’,N’-tetramethylethylenediamine), ferrocenyllithium. TMEDA, and 2-lithio[(dimethylamino)methyl]-ferrocene were isolated and characterized as air-sensitive solids. An attempted formation of 2,2′-dilithiobiphenyl from 2,2′-dibromobiphenyl and BuLi yielded a mixture of ∼80% of this dilithium reagent and ca. 20% of 2-bromo-2′-lithiobiphenyl.

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