Tag: M.W:200-300

The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《Some reactions of halogen derivatives of ferrocene. Ferrocenylamine. Ferrocenyl acetate》. Authors are Nesmeyanov, A. N.; Sazonova, V. A.; Drozd, 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).Category: thiazolidine. Through the article, more information about this compound (cas:1273-73-0) is conveyed.

cf. C.A. 50, 2558a; 54, 6673h. Refluxing 0.3 g. bromoferrocene (I) with 1 g. Cu(OAc)2 in 30 ml. 50% EtOH 15 min. gave 90% ferrocenyl acetate, m. 64.5-6.5° (EtOH); hydrolysis and treatment with BzCl gave ferrocenyl benzoate, m. 108.5-9.5°. Ferrocenyl acetate was similarly prepared in 84% yield from chloroferrocene. Heating 0.6 g. I with 1.5 g. Cu phthalimide 2 hrs. at 135-40° gave after extraction with Et2O 64% N-ferrocenylphthalimide, m. 156-7° (EtOH); chloroferrocene gave a 53% yield. Refluxing the imide with N2H4.H2O in EtOH under N 40 min. gave after an aqueous treatment 82% ferrocenylamine, m. 153-5°, which with Ac2O in pyridine at room temperature gave 82% N-acetylferrocenylamine, m. 169-71°. Heating I with Cu(CN)2 2 hrs. at 140° gave 84% ferrocenecarbonitrile, m. 105.5-6.5°; the yield was 42% when the reaction was run 3 hrs. in pyridine with chloroferrocene and when a small amount of the nitrile was originally present in the reaction mixture

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COA of Formula: C10H8BrNO2. 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: 2-(7-Bromo-1H-indol-3-yl)acetic acid, is researched, Molecular C10H8BrNO2, CAS is 63352-97-6, about Growth of Avena coleoptiles and pH drop of protoplast suspensions induced by chlorinated indoleacetic acids.

Several indoleacetic acids, substituted in the benzene ring, were compared in the Avena straight growth bioassay. 4-Chloroindoleacetic acid (I) [2519-61-1], a naturally occurring plant hormone, was one of the strongest hormones in this bioassay. With an optimum at 10-6 mol/L, it was more active than indoleacetic acid [87-51-4], 2,4-dichlorophenoxyacetic acid [94-75-7], and naphthaleneacetic acid [86-87-3]. 5-Chloro- [1912-45-4] and 6-chloroindoleacetic acid [1912-44-3] are very strong auxins as well. Other derivatives tested have a lower activity. 5,7-Dichloro- [1912-40-9] and 5-hydroxyindoleacetic acid [54-16-0] have very low auxin activity at 10-4 mol/L and may be antiauxins. Some of the derivatives were compared for their effect on pH decline in stem protoplast suspensions of Helianthus annuus and Pisum sativum. The change of pH occurs without a lag period or with only a very short one. Derivatives which are very active in the Avena straight growth assay cause a larger pH decline than indoleacetic acid, while inactive derivatives cause effectively no pH decline.

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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 Direct C-C-coupling of ferrocenyl- and cymantrenyllithium with 5-(het)aryl-1,2,5-oxadiazolo[3,4-b]pyrazines.Computed Properties of C10BrFe.

A direct C-C-coupling of ferrocenyl- and cymantrenyllithium with 5-(het)aryl-1,2,5- oxadiazolo[3,4-b]pyrazines was accomplished. Main characteristics of the SNH-reaction products were obtained, as well as crystallog. data on the spatial structure of oxadiazolopyrazinylferrocenes and -cymantrenes synthesized.

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The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《Diazo compounds of ferrocene》. Authors are Nesmeyanov, A. N.; Drozd, V. N.; Sazonova, V. A..The article about the compound:Bromoferrocenecas:1273-73-0,SMILESS:Br[C-]12[Fe+2]3456789([C-]%10C6=C7C8=C9%10)C1=C3C4=C25).Reference of Bromoferrocene. Through the article, more information about this compound (cas:1273-73-0) is conveyed.

cf. CA 52, 14579b. Since ferrocenediazonium salts cannot be prepared with HNO2 owing to destruction of the ring by this acid, an indirect method was devised. Diazoaminoferrocene was added at -4(1° to concentrated HCl and the mixture gradually warmed to -20°, when a violet color of the diazonium salt appeared, while at -15°, N evolution commenced and terminated at -5°; crystals of chloroferrocene precipitated After dilution and extraction with Et2O, the organic extract was washed with aqueous KOH and H2O, and evaporated yielding 72% chloroferrocene (I), m. 57-8°. The mother liquor after neutralization and extraction with Et2O gave 62% ferrocenylamine, m. 154-5°. Similar treatment of benzenediazoaminoferrocene gave 76% I and traces of ferrocenylamine; similar decompn, in concentrated HBr or HI gave 70% bromoferrocene, m. 32-3°, or 72% iodoferrocene, m. 42 4°, resp. Similar reaction with 40% H2SO4 in the presence of Et2O gave a solution containing hydroxyferrocene, which was isolated as the benzoyl derivative, m. 108.5-9 5° in 3% yield. Benzenediazoaminoferrocene hydrolyzed as above in concentrated HCl, warmed to -20° to form the diazonium salt solution, and treated with 2-C10H7OH in 10% KOH in the cold gave, after chromatog. purification on Al2O3, 48% 1-ferroceneazo-2-naphthol (II), m. 151-2°, a green solid, along with 28% I; II gave violet solutions in organic solvents and was insoluble in alkalies. 1,1′-Bis(benzenediazoamino)ferrocene treated similarly in the cold with concentrated HCl gave a violet solution of the bis(diazonium salt), which with 2-C10H7OH as above gave a little II, 35% red 1-benzeneazo-2-naphthol, and 24% black ferrocene-1,1′-bis(1-azo-2-naphthol), decompg 212-13°.

After consulting a lot of data, we found that this compound(1273-73-0)Reference of Bromoferrocene can be used in many types of reactions. And in most cases, this compound has more advantages.

Reference:
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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.Reference of Bromoferrocene. The article 《Structure of stable telluradiphosphirane bearing bulky ferrocenyl ligands》 in relation to this compound, is published in Chemistry Letters. Let’s take a look at the latest research on this compound (cas:1273-73-0).

Chalcogenation reactions of 1,2-bis(ferrocenyl)diphosphene, Fc*P:PFc* (Fc* = 2,5-bis(3,5-di-t-butylphenyl)ferrocenyl), with elemental sulfur (S8) and tellurium afforded the corresponding thia- and telluradiphosphirane derivatives as stable crystalline compounds, resp. The sterically demanding ferrocenyl group would afford sufficient crystallinity and stability to the heterocyclic compounds; the structures of these three-membered ring heterocycles were revealed by x-ray crystallog. anal.

The article 《Structure of stable telluradiphosphirane bearing bulky ferrocenyl ligands》 also mentions many details about this compound(1273-73-0)Formula: C10BrFe, you can pay attention to it, because details determine success or failure

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Thiazolidine – Wikipedia,
Thiazolidine – ScienceDirect.com

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 Mechanically-tunable quantum interference in ferrocene-based single-molecule junctions.Synthetic Route of C10BrFe.

Ferrocenes are ubiquitous organometallic building blocks that comprise a Fe atom sandwiched between two cyclopentadienyl (Cp) rings that rotate freely at room temperature Of widespread interest in fundamental studies and real-world applications, they have also attracted some interest as functional elements of mol.-scale devices. Here, the impact of the configurational degrees of freedom of a ferrocene derivative on its single-mol. junction conductance is investigated. Measurements indicate that the conductance of the ferrocene derivative, which is suppressed by two orders of magnitude as compared to a fully conjugated analog, can be modulated by altering the junction configuration. Ab initio transport calculations show that the low conductance is a consequence of destructive quantum interference effects that arise from the hybridization of metal-based d-orbitals and the ligand-based π-system. By rotating the Cp rings, the hybridization, and thus the quantum interference, can be mech. controlled, resulting in a conductance modulation that is seen exptl.

The article 《Mechanically-tunable quantum interference in ferrocene-based single-molecule junctions》 also mentions many details about this compound(1273-73-0)Synthetic Route of C10BrFe, you can pay attention to it, because details determine success or failure

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Thiazolidine – ScienceDirect.com

HPLC of Formula: 1273-73-0. 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 Titanium-nitrogen compounds. XVII. σ-(Ferrocenyl)dialkylamidotitanium. Author is Buerger, Hans; Kluess, Carsten.

Mono- and dilithioferrocene react with dialkylamidotitanium bromides (R2N)3TiBr (R = Me, Et) to yield h1-ferrocenyltitanium dialkylamides (II, III, IV). In these compounds the cyclopentadienyl groups are π-linked to Fe and σ-bonded to Ti; the structures are rigid in the NMR time scale. Dependent on the NR2 substituent, the TiC σ-bond is stable up to ∼60° for short periods.

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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.Nesmeyanov, A. N.; Perevalova, E. G.; Lemenovskii, D. A.; Kosina, A. N.; Grandberg, K. I. researched the compound: Bromoferrocene( cas:1273-73-0 ).Application In Synthesis of Bromoferrocene.They published the article 《Ferrocenylgold-triphenylphosphine》 about this compound( cas:1273-73-0 ) in Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya. Keywords: gold ferrocenyl phosphines; ferrocenyl phosphines gold; phosphines gold ferrocenyl; ferrocenes; iron organic compound. We’ll tell you more about this compound (cas:1273-73-0).

To ferrocenyllithium from 2.8 g ferrocene in THF-Et2O with BuLi under argon was added 2 g ClAuPPh3, and after 2 hr the mixture quenched in H2O to yield 81% orange ferrocenyl-goldtriphenylphosphine, C5H5FeC5H4AuPPh3, decomposed 150°; ir and NMR spectral data given. Chromatog. on Al2O3 decomposed this to ferrocene. BrAuPPh3 in the above reaction gave the same complex in 67% yield. Treated with dry HCl in C6H6 the product gave ferrocene and ClAuPPh3, m. 242-3°; HI gave diferrocenyl in trace amounts along with nearly 100% ferrocene and IAuPPh3, m. 224-5°. HCN similarly converted the complex into ferrocene and AuCN.PPh3, m. 203.5-204°. Bromination gave bromoferrocene, m. 30-1°, and 81% BrAuPPh3. ClAuPPh3 in Et2O under argon treated with BuLi 5 hr gave 86% oily BuAuPPh3, which darkened in air. It was purified by freezing in liquid pentane at -70°.

After consulting a lot of data, we found that this compound(1273-73-0)Application In Synthesis of Bromoferrocene can be used in many types of reactions. And in most cases, this compound has more advantages.

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Thiazolidine – Wikipedia,
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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.Daeneke, Torben; Mozer, Attila J.; Kwon, Tae-Hyuk; Duffy, Noel W.; Holmes, Andrew B.; Bach, Udo; Spiccia, Leone researched the compound: Bromoferrocene( cas:1273-73-0 ).Category: thiazolidine.They published the article 《Dye regeneration and charge recombination in dye-sensitized solar cells with ferrocene derivatives as redox mediators》 about this compound( cas:1273-73-0 ) in Energy & Environmental Science. Keywords: ferrocene derivative redox mediator dye regeneration charge recombination DSSC. We’ll tell you more about this compound (cas:1273-73-0).

Ferrocene compounds are promising redox shuttles for application in dye-sensitized solar cells (DSCs). Chem. modification of the cyclopentadienyl rings is easily achievable affording almost unlimited variation of the redox properties. This allows fine-tuning of the driving force for dye-regeneration and optimization of the energy conversion efficiency of DSCs. Herein, six ferrocene derivatives have been chosen for investigation which cover the large redox potential range of 0.85 V, by virtue of simple alkylation and halogenation of the cyclopentadienyl ring, and enable improved matching of the energy levels of the sensitizer and the electrolyte. Although the focus of this work was to examine the effect of the redox potential on charge transfer processes, DSCs were fabricated which achieved high energy conversion efficiencies of over 5%. Charge transfer reactions were studied to reveal the dependence of the dye regeneration rate, recombination losses and recombination pathways on the reaction driving force. An increase in redox potential led to a higher efficiency due to higher open circuit potentials until a threshold is reached. At this threshold, the driving force for dye regeneration (18 kJ mol-1, ΔE = 0.19 V) becomes too small for efficient device operation, leading to rapid recombination between the oxidized dye and electrons in the TiO2 conduction band. As a result of this work guidelines can be formulated to aid the selection of redox couples for a particular sensitizer in order to maximize the utilization of incident solar energy.

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Reference:
Thiazolidine – Wikipedia,
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Reference of Bromoferrocene. 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: Bromoferrocene, is researched, Molecular C10BrFe, CAS is 1273-73-0, about A new synthesis of diferrocenyl ketones. Author is Salazar, D. C. O’Connor; Cowan, D. O..

Diferrocenyl ketone and [1.1]ferrocenophane-1,12-dione (I) were obtained in 86% and 13% yields, resp., via a simple route analogous to the Barbier synthesis involving N,N-disubstituted carbamyl chlorides and the appropriate bromoferrocene derivatives

After consulting a lot of data, we found that this compound(1273-73-0)Reference of Bromoferrocene can be used in many types of reactions. And in most cases, this compound has more advantages.

Reference:
Thiazolidine – Wikipedia,
Thiazolidine – ScienceDirect.com