Tag: M.W:200-300

Synthetic Route of C10BrFe. The mechanism of aromatic electrophilic substitution of aromatic heterocycles is consistent with that of benzene. Compound: Bromoferrocene, is researched, Molecular C10BrFe, CAS is 1273-73-0, about Coordination chemistry of perhalogenated cyclopentadienes and alkynes. XXVIII new high-yield synthesis of monobromoferrocene and simplified procedure for the synthesis of pentabromoferrocene. Molecular structures of 1,2,3-tribromoferrocene and 1,2,3,4,5-pentabromoferrocene. Author is Suenkel, Karlheinz; Bernhartzeder, Stefanie.

Monobromoferrocene (1) was obtained in 95% yield from ferrocene via lithiation with tert-BuLi/KO-tert-Bu and bromination with dibromotetrachloroethane. Starting from 1 mixtures of 1,2-dibromoferrocene (2) and apparently unreacted 1 (ranging from 80:20 to 50:50, depending on the reaction conditions) can be obtained via a lithiation- zincation- bromination sequence. These mixtures can be transferred directly with a tenfold excess of Lithium-tetramethylpiperidinide, followed by bromination with 1,1,2,2-tetrabromoethane to pentabromoferrocene (3), in an overall yield of 36% starting from ferrocene. The mol. structures of 3 and of 1,2,3-tribromoferrocene (4) have been determined by X-Ray diffraction.

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The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《Convenient synthesis of some halo ferrocenes》. Authors are Fish, R. W.; Rosenblum, M..The article about the compound:Bromoferrocenecas:1273-73-0,SMILESS:Br[C-]12[Fe+2]3456789([C-]%10C6=C7C8=C9%10)C1=C3C4=C25).Electric Literature of C10BrFe. Through the article, more information about this compound (cas:1273-73-0) is conveyed.

Chloromercuriferrocenes were transformed to halo ferrocenes by treatment with pos. halogen reagents in polar media. Thus, N-bromo-and N-iodosuccinimide afforded bromo-and iodoferrocene, resp. 1,1′-Dibromoferrocene (I) was similarly obtained from 1,1′-bis(chloromercuri)ferrocene. The direct conversion of ferrocene to I, without isolation of the intermediate chloromercuri derivative, was feasible.

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Epoxy compounds usually have stronger nucleophilic ability, because the alkyl group on the oxygen atom makes the bond angle smaller, which makes the lone pair of electrons react more dissimilarly with the electron-deficient system. Compound: Bromoferrocene, is researched, Molecular C10BrFe, CAS is 1273-73-0, about Ferrocenylamines.Computed Properties of C10BrFe.

A general method for the preparation of ferrocenylamines involves the reactions of ferrocenyl bromide, FcBr, with the Na salt of an amine or amide in the presence of copper(I) bromide/pyridine. The syntheses of diferrocenylphenylamine and triferrocenylamine, NFc2Ph and NFc3, resp., are reported, and the hydrolysis of N-ferrocenylacetamide to give ferrocenylamine, NH2Fc, is described. The system of the ferrocenyl- and/or phenyl-substituted derivatives of ammonia, NFcnX3-n (n = 0-3; X = H, Ph), is characterized on the basis of mass, UV, visible, and 1H and 13C NMR spectra.

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Reference 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 Ferrocene and Cobaltocene Derivatives for Non-Aqueous Redox Flow Batteries. Author is Hwang, Byunghyun; Park, Min-Sik; Kim, Ketack.

Ferrocene and cobaltocene and their derivatives are studied as new redox materials for redox flow cells. Their high reaction rates and moderate solubility are attractive properties for their use as active materials. The cyclability experiments are carried out in a static cell; the results showed that these materials exhibit stable capacity retention and predictable discharge potentials, which agree with the potential values from the cyclic voltammograms. The diffusion coefficients of these materials are 2 to 7 times higher than those of other non-aqueous materials such as vanadium acetylacetonate, iron tris(2,2′-bipyridine) complexes, and an organic benzene derivative

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In general, if the atoms that make up the ring contain heteroatoms, such rings become heterocycles, and organic compounds containing heterocycles are called heterocyclic compounds. An article called Quinolinium thiocyanate, published in 1950, which mentions a compound: 530-66-5, Name is quinoliniumhydrogensulphate, Molecular C9H9NO4S, SDS of cas: 530-66-5.

The reaction of BzCl with quinoline (I) and CHNa(CO2Et)2 did not yield the desired 1,2-dihydroquinoline, since most of the I was recovered; the products (as determined by hydrolysis) are CHBz(CO2Et)2 and Bz(BzO)C:C(CO2Et)2. I (63 g.) and 156 g. KSCN in 600 ml. H2O, treated (7 min.) with 148 g. BzCl and stirred 1 hr., give 77% quinolinium thiocyanate, light yellow, m. 141-1.5°; FeCl3 gives a deep red color; heated 1 hr. on the steam bath with concentrated HCl it yields quinolinium H sulfate, m. 162-4°.

Compound(530-66-5)SDS of cas: 530-66-5 received a lot of attention, and I have introduced some compounds in other articles, similar to this compound(quinoliniumhydrogensulphate), if you are interested, you can check out my other related articles.

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SDS of cas: 1273-73-0. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: Bromoferrocene, is researched, Molecular C10BrFe, CAS is 1273-73-0, about Electron-Transfer Properties of an Efficient Nonheme Iron Oxidation Catalyst with a Tetradentate Bispidine Ligand. Author is Comba, Peter; Fukuzumi, Shunichi; Kotani, Hiroaki; Wunderlich, Steffen.

The electron-transfer properties are reported for an FeV=O complex (I) with the tetradentate bispidine ligand. The electron transfer from dibromoferrocene (Br2Fc) to I is confirmed by the UV/Vis spectral changes, with an increase of the absorption observed at 690 nm for the Br2Fc+ cation and the concomitant decrease of the absorption of I at 760 nm.

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Epoxy compounds usually have stronger nucleophilic ability, because the alkyl group on the oxygen atom makes the bond angle smaller, which makes the lone pair of electrons react more dissimilarly with the electron-deficient system. Compound: Bromoferrocene, is researched, Molecular C10BrFe, CAS is 1273-73-0, about The observation of ion-pairing effect based on substituent effect of ferrocene derivatives.HPLC of Formula: 1273-73-0.

The ion-pairing effect was studied based on the substituent effect of ferrocene (Fc) derivatives using cyclic voltammetry. The presence of ion-pairing strongly affected the electrochem. redox behavior in the organic solvent. The formal redox potential (E0′, the average of anodic and cathodic peak potential) shifted neg. with the increasing ion-pairing effect. That was because the formation of ion pair (Fc+·ClO-4) was beneficial to equilibrium shift from Fc to Fc+ in thermodn. Electron-donating and electron-withdrawing substituents of ferrocene derivatives were employed for a deep study of ion-pairing effect, resp. Both ion-pairing effect and electron-donating substituent effect facilitated the neg. shift of E0′ for ferrocene derivatives, showing the pos. cooperativity. While the electron-withdrawing substituent effect resulted in the pos. shift of E0′ for ferrocene derivatives and was unfavorable for the oxidation of Fc derivatives, reflecting the neg. cooperativity with ion-pairing effect. The reversal phenomenon of weak electron-withdrawing substituent was revealed when the ion-pairing effect was stronger than the electron-withdrawing substituent effect, indicating that the ion-pairing function has a significant effect on electrochem. behavior of ferrocene derivatives

From this literature《The observation of ion-pairing effect based on substituent effect of ferrocene derivatives》,we know some information about this compound(1273-73-0)HPLC of Formula: 1273-73-0, but this is not all information, there are many literatures related to this compound(1273-73-0).

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Formula: C10BrFe. The mechanism of aromatic electrophilic substitution of aromatic heterocycles is consistent with that of benzene. Compound: Bromoferrocene, is researched, Molecular C10BrFe, CAS is 1273-73-0, about Electron-Transfer Properties of an Efficient Nonheme Iron Oxidation Catalyst with a Tetradentate Bispidine Ligand. Author is Comba, Peter; Fukuzumi, Shunichi; Kotani, Hiroaki; Wunderlich, Steffen.

The electron-transfer properties are reported for an FeV=O complex (I) with the tetradentate bispidine ligand. The electron transfer from dibromoferrocene (Br2Fc) to I is confirmed by the UV/Vis spectral changes, with an increase of the absorption observed at 690 nm for the Br2Fc+ cation and the concomitant decrease of the absorption of I at 760 nm.

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Thiazolidine – Wikipedia,
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Epoxy compounds usually have stronger nucleophilic ability, because the alkyl group on the oxygen atom makes the bond angle smaller, which makes the lone pair of electrons react more dissimilarly with the electron-deficient system. Compound: (R)-4-(tert-Butyl)-2-(5-(trifluoromethyl)pyridin-2-yl)-4,5-dihydrooxazole, is researched, Molecular C13H15F3N2O, CAS is 1428537-19-2, about Ni-Catalyzed Ligand-Controlled Regiodivergent Reductive Dicarbofunctionalization of Alkenes.Application In Synthesis of (R)-4-(tert-Butyl)-2-(5-(trifluoromethyl)pyridin-2-yl)-4,5-dihydrooxazole.

Transition-metal-catalyzed dicarbofunctionalization of alkenes involving intramol. Heck cyclization followed by intermol. cross-coupling has emerged as a powerful engine for building heterocycles with sterically congested quaternary carbon centers. However, only exo-cyclization/cross-coupling products can be obtained; endo-selective cyclization/cross-coupling has not been reported yet and still poses a formidable challenge. We herein report the first example of catalyst-controlled dicarbofunctionalization of alkenes for the regiodivergent synthesis of five- and six-membered benzo-fused lactams bearing all-carbon quaternary centers. Using a chiral Pyrox- or Phox-type bidentate ligand, 5-exo cyclization/cross-couplings proceed favorably to produce indole-2-ones in good yields with excellent regioselectivity and enantioselectivities (up to 98% ee). When C6-carboxylic acid-modified 2,2′-bipyridine was used as the ligand, 3,4-dihydroquinolin-2-ones were obtained in good yields through 6-endo-selective cyclization/cross-coupling processes. This transformation is modular and tolerant of a variety of functional groups. The ligand rather than the substrate structures precisely dictates the regioselectivity pattern. Moreover, the synthetic value of this regiodivergent protocol was demonstrated by the preparation of biol. relevant mols. and structural scaffolds.

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The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《Ferrocene and related organometallic π-complexes. IV. Some Ullmann reactions of haloferrocenes》. Authors are Rausch, Marvin D..The article about the compound:Bromoferrocenecas:1273-73-0,SMILESS:Br[C-]12[Fe+2]3456789([C-]%10C6=C7C8=C9%10)C1=C3C4=C25).Application In Synthesis of Bromoferrocene. Through the article, more information about this compound (cas:1273-73-0) is conveyed.

cf. CA 54, 22540e. Haloferrocenes were found to undergo the Ullmann coupling reaction readily. Iodoferrocene (I) and Cu bronze form biferrocenyl (II) in quant. yield at 150°. Both I and 1-iodo-2-nitrobenzene (III) formed coupling products in 95-100% yield at temperatures as low as 60°. A series of ferrocenyl aryl ethers were prepared by the Ullmann condensation of I and K aryloxides. I was prepared in 60-70% yield by the reaction of chloromercuriferrocene and iodine in xylene at 75-80°, m. 49-9.5° (MeOH-H2O). Bromo- (IV) and chloroferrocene (V) were obtained by the reaction of ferrocenylboronic acid with CuBr and CuCl, resp. I (0.936 g.) and 1.9 g. Cu bronze heated 16 hrs. at 140-50°, the mixture extracted with hot C6H6, and the extract evaporated gave 0.510 g. II, m. 239-40° (decomposition). In experiments in which less pure I was used the yield of II was appreciably less than quant. Similar reactions in which I was replaced by IV and V gave yields of 97 and 65% II, resp. I (0.405 g.), 0.83 g. Cu bronze, and 4 g. biphenyl heated 16 hrs. at 130°, and then 3 hrs. at 158-60°, and the residues chromatographed gave a total of 76% II. Reactions in which HCONMe2 was used as solvent and diluent gave mostly ferrocene. When the reaction was carried out using Zn and heating 19 hrs. at 150° and the product chromatographed on Al2O3, 17% II was obtained. II was less soluble in common organic solvents than ferrocene. The infrared and ultraviolet spectra of II were discussed. III (4.98 g.) and 12.7 g. Cu bronze heated 60 hrs. at 60° gave 2.3 g. 2,2′-dinitrobiphenyl, m. 125°. Similarly, 4.98 g. 1,3-I(O2N)C6H4 and 12.7 g. Cu bronze afforded a crude product which when chromatographed on Al2O3 gave 1% 3,3′-dinitrobiphenyl, m. 197-8°, and 4.20 g. unchanged material. In a reaction similar to that described above 20.4 g. PhI and 1 g. Cu bronze gave 16 g. unchanged PhI and no trace of Ph2. I (0.624 g.) and 1.28 g. Cu bronze gave 97% II. I (0.405 g.), 0.324 g. III, and 1.65 g. Cu bronze gave a crude product which when chromatographed on Al2O3 gave 71% II, and 7.5% 2-nitrophenylferrocene, m. 116-17°. Ferrocenyl aryl ethers were prepared by the following typical procedure. 2-Naphthol (1.44 g.) and 0.28 g. KOH heated at 150° until all the KOH dissolved, 0.936 g. I and 0.02 g. Cu bronze added, the mixture heated 16 hrs. at 115°, cooled, the contents washed with 10% KOH, extracted with refluxing C6H6, and the product chromatographed on Al2O3 gave 0.11 g. ferrocene and 0.12 g. ferrocenyl 2-naphthyl ether, m. 143-3.5° (heptane). The following further ferrocenyl aryl ethers were prepared (aryl group, m.p., and % yield given): Ph, 93-3.5°, 28; 3-(3-phenoxyphenoxy)phenyl, 74-4.5°, 50; 2-biphenylyl, 141-2°, 62; 4-BrC6H4, 87-7.5°, 22. All ferrocenyl aryl ethers exhibited strong absorption in the 1270-1230 cm.-1 region. When heated in sealed capillaries the ethers did not appear to decompose

Compound(1273-73-0)Application In Synthesis 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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