Category: 1271-48-3

An article , which mentions 1271-48-3, molecular formula is C12H10FeO2. The compound – 1,1′-Ferrocenedicarboxaldehyde played an important role in people’s production and life., 1271-48-3

A facile transesterification route to ferrocenyl esters

In the presence of tetrabutylammonium hydroxide as catalyst and at room temperature, ethyl ferrocenecarboxylate, ethyl ferrocenylacetate, ethyl 3-ferrocenylpropanoate, 1,1?-ferrocenyl-bis(ethyl propanoate), ethyl 3-ferrocenylpropenoate and 1,1?-ferrocenyl-bis(ethyl propenoate) undergoes facile transesterification reaction with aliphatic, benzyl and allyl alcohols to furnish the corresponding ferrocenyl esters in good to excellent yields. Ring closing metathesis of the ester Fc-1,1?-(CHCH-CO2CH 2CHCH2)2 yields the corresponding closed loop ferrocenyl ester.

A facile transesterification route to ferrocenyl esters

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1271-48-3, Catalysts function by providing an alternate reaction mechanism that has a lower activation energy than would be found in the absence of the catalyst. In a patent, 1271-48-3, molecular formula is C12H10FeO2, introducing its new discovery.

A double-allyl three-carbon ester ferrocene monomer and its preparation method (by machine translation)

The invention relates to a double-allyl three-carbon ester ferrocene monomer and its preparation method. In order to 1, 1 ‘- double-(1 – methoxy – 3 – butenyl) ferrocene and 1 – methoxy – 1 – (trimethyl siloxy) – 2 – methyl – 1 – propylene as the raw material, at the low temperature, boron trifluoride ether complex adds by drops three, to obtain 1, 1’ – double-[1 – (1 – methoxy carbo- acid radical – 1 – methyl – ethyl) – 3 – ene butyl] ferrocene compound; diene propyl substituted three-carbon methyl ester ferrocene not only can be used for the melt polycondensation of the polyester, but also has the double bond giving it take part in the polymerization reaction capability of the, therefore is a novel ferrocene base monomer. (by machine translation)

A double-allyl three-carbon ester ferrocene monomer and its preparation method (by machine translation)

Note that a catalyst decreases the activation energy for both the forward and the reverse reactions and hence accelerates both the forward and the reverse reactions.1271-48-3, you can also check out more blogs about1271-48-3

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In an article, published in an article,authors is Beer, Paul D., once mentioned the application of 1271-48-3, Name is 1,1′-Ferrocenedicarboxaldehyde,molecular formula is C12H10FeO2, is a conventional compound. this article was the specific content is as follows. 1271-48-3

Anion interaction with ferrocene-functionalised cyclic and open-chain polyaza and aza-oxa cycloalkanes

A family of ferrocene-functionalised receptors of different topologies have been used as receptors for anions. The compounds have been designed to contain both amine nitrogen and ether oxygen atoms and comprises from monoaza to pentaaza derivatives both open-chain (L1, L2, L3) or cyclic (L4, L5) and having from one to five ferrocenyl groups. Solution studies directed to determine the protonation constants of L1, L2 and L3 have been carried out in water (0.1 mol dm3 KNO3, 25 C) and those of L4 and L5 in 1,4-dioxane-water (70:30 v/v, 0.1 mol dm-3 KNO3, 25 C). The protonation behaviour of the receptors can be explained taking into account electrostatic considerations. Speciation studies in the presence of phosphate have been carried out in water for L’, L2 and L3 and in dioxane-water for L4 and L5. Speciation studies have also been performed in the presence of ATP with L1, L2 and L3 in water. Selectivity of a mixture of receptors against a certain anion is discussed in terms of ternary diagrams. The shift of the redox potential of the ferrocenyl groups as a function of the pH has been studied. The difference between the oxidation potentials at basic and acidic pH has been determined experimentally and is compared with that theoretically predicted using an electrostatic model previously reported. The electrochemical shift in the presence of ATP and phosphate has been measured in water for L1, L2 and L3 and in the presence of phosphate and sulfate in 1,4-dioxane-water for L4 and L5 as a function of the pH. The electrochemical response found against those anions is quite poor with maximum cathodic shifts off. 30tO mV. The electrochemical response induced by HSO4 and H2PO4- has also been studied in acetonitrile solutions where a large cathodic shift for H2PO4- up to ca. 200 mV was found. The Royal Society of Chemistry 2000.

Anion interaction with ferrocene-functionalised cyclic and open-chain polyaza and aza-oxa cycloalkanes

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Let¡¯s face it, organic chemistry can seem difficult to learn. Especially from a beginner¡¯s point of view. Like 1271-48-3, Name is 1,1′-Ferrocenedicarboxaldehyde. In a document type is Article, introducing its new discovery., 1271-48-3

Chemical and electrochemical formation of pseudorotaxanes composed of alkyl(ferrocenylmethyl)ammmonium and dibenzo[24]crown-8

Protonation of p-xylylaminomethylferrocene (1) and n- hexylaminomethylferrocene (2) by HCl and NH4PF6 forms the ferrocenylmethyl(alkyl)ammonium salt. Inclusion of the compounds by dibenzo[24]crown-8 (DB24C8) produces [2]pseudorotaxanes, [(DB24C8)(1-H)] +(PF6) and [(DB24C8)(2-H)]+(PF6), respectively. X-ray diffraction of the former product indicates an interlocked structure composed of the axis and the macrocyclic molecule. Intermolecular N-H…O and C-H…O interactions and stacking of the aromatic planes are observed. [(DB24C8)(1-H)]+(PF6), in the solid state, is characterized by IR spectroscopy and elemental analyses. A similar reaction of 1,1?-bis(p-xylylaminomethyl)ferrocene (3) forms a mixture of [2] and [3]pseudorotaxanes, [(DB24C8)(3-H2)]2+(PF 6)2 and [(DB24C8)2(3-H2)] 2+(PF6)2. The latter product having two DB24C8 molecules is isolated and characterized by X-ray crystallography. Formation of these pseudorotaxanes in a CD3CN solution is evidenced by 1H NMR and mass spectrometry. Electrochemical oxidation of 1-3 at 0.4 V (vs Ag+/Ag) in the presence of TEMPOH (1-hydroxy-2,2,6,6- tetramethylpiperidine) and DB24C8 affords the corresponding pseudorotaxanes. The ESR spectrum of the reaction mixture indicates the formation of a TEMPO radical in high yield. Details of the conversion of the dialkylamino group of the ligand to the dialkylammonium group are investigated by using a flow electrolysis method linked to spectroscopic measurements. The proposed mechanism for the reaction involves the ferrocenium species, formed by initial oxidation, which undergoes electron transfer from nitrogen to the Fe(III) center, producing a cation radical at the nitrogen. Transfer of hydrogen from TEMPOH to the cation radical and inclusion of the resulting dialkylammonium species by DB24C8 yields the pseudorotaxanes.

Chemical and electrochemical formation of pseudorotaxanes composed of alkyl(ferrocenylmethyl)ammmonium and dibenzo[24]crown-8

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Chemistry is an experimental science, and the best way to enjoy it and learn about it is performing experiments. 1271-48-3. Introducing a new discovery about 1271-48-3, Name is 1,1′-Ferrocenedicarboxaldehyde

Organometallic-Organic Hybrid Crystals from Ferrocenyl Dipyridine and Binaphthol: Different Crystal Structures and Nonlinear Optical Properties Depending upon the Reaction Medium and Optical Purity of Binaphthol

The hydrogen bond directed molecular recognition between 1,1?-bis(ethenyl-4-pyridyl)-ferrocene (1) and (¡À)-1,1?-binaphthol (2)/(-)-1,1?- binaphthol ((-)-2) has been studied by cocrystallization in different solvents. Single-crystal X-ray structures reveal that 3:2, 2:1, and 1:1 complexes (3, 4, and 5, respectively) of 1,1?-bis(ethenyl-4-pyridyl)ferrocene (1) and (¡À)-1,1-binaphthol (2) are formed in tetrahydrofuran, methanol, and ethanol, respectively. 5 has a noncentrosymmetric packing arrangement, and an efficiency of 0.3 times that of urea in second-harmonic generation has been measured at 1295 nm. An X-ray crystal structure of 6, 1:1 complex of 1 with (-)-2 in ethanol, reveals that all the molecular dipoles are aligned in the same direction (i.e, a polar crystal), but 6 has modest nonlinear optical properties (ca. 0.4 times that of urea).

Organometallic-Organic Hybrid Crystals from Ferrocenyl Dipyridine and Binaphthol: Different Crystal Structures and Nonlinear Optical Properties Depending upon the Reaction Medium and Optical Purity of Binaphthol

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Iron Catalysis in Organic Synthesis: A Critical Assessment of What It Takes To Make This Base Metal a Multitasking Champion

 

1271-48-3, An article , which mentions 1271-48-3, molecular formula is C12H10FeO2. The compound – 1,1′-Ferrocenedicarboxaldehyde played an important role in people’s production and life.

The highly regiospecific synthesis and crystal structure determination of 1,1?-2,5? substituted ring-locked ferrocenes

1,1?-Ferrocene biscarboxaldehyde (1) has been prepared and the aldehyde groups were subsequently protected with acetal groups to produce 1,1?-bisacetalferrocene (2). A ring-locked ferrocene was synthesised by further derivatisation of the cyclopentadiene rings at the 2,2? positions with phosphine substituents to produce 2,2?-bis-(acetal)-1,1?-diphenylphosphinoferrocene (3), which was subsequently coordinated to either a nickel chloride (5) or nickel bromide (6) metal centre. The ring-locked ferrocene complexes produced 2,5?-bis-(acetal)-1,1?-diphenylphosphinoferrocene substitution patterns. The acetal protecting groups of 2,2?-bis-(acetal)-1,1?-diphenylphosphinoferrocene were removed to produce 1,1?-bis-carboxaldehyde-2,2?-diphenylphosphinoferrocene (4). The Cp rings of 1,1?-bisacetalferrocene were also further derivatised at the 2,2? positions with a silane to produce the ring-locked 1,1?-siloxane-2,5?-bisacetalferrocenophane (7). The acetal protecting groups were removed from this to produce 1,1?-siloxane-2,5?-ferrocenophanecarboxaldehyde (8). For both the phosphine and siloxane electrophiles, the substitution on the Cp rings gives chiral products (obtained as racemic mixtures). Due to the highly regioselective nature of the reaction and diastereoselectivity in the products only C2-symmetric compounds were observed without the presence of meso diastereoisomers. Subsequent ring-locking forced the Cp rings to rotate, leading to 1,1?-ring-locked ferrocenes with 2,5?-arrangement of the acetal groups (i.e. on opposite faces of the ferrocene unit).

The highly regiospecific synthesis and crystal structure determination of 1,1?-2,5? substituted ring-locked ferrocenes

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1271-48-3, Chemistry is the science of change. But why do chemical reactions take place? Why do chemicals react with each other? The answer is in thermodynamics and kinetics.In a document type is Article, the author is Ghosh, Avishek and a compound is mentioned, 1271-48-3, 1,1′-Ferrocenedicarboxaldehyde, introducing its new discovery.

Selective functionalization of ferrocenyl compounds using a novel solvent free synthetic method for the preparation of bioactive unsymmetrical ferrocenyl derivatives

A novel solvent free synthetic method has been designed by using rice husk ash (RHA) as solid support for the selective functionalization of ferrocenyl derivatives and described the synthesis of a 1,1?-unsymmetrically bi-functionalized ferrocenyl compounds for their biological evaluation. Single crystal X-ray structural evaluation showed some interesting intra-molecular hydrogen bonding interactions across the chains of the ferrocenyl molecule, while DFT calculation revealed the significance of the orientation between the two cyclopentadienyl rings for the hydrogen bonding interaction. Redox and antibacterial properties have been studied to understand the electronic and biological effect of different hydrazone system and their potential for future application.

Selective functionalization of ferrocenyl compounds using a novel solvent free synthetic method for the preparation of bioactive unsymmetrical ferrocenyl derivatives

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Iron Catalysis in Organic Synthesis | Chemical Reviews,
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1271-48-3, Chemistry is the experimental science by definition. We want to make observations to prove hypothesis. For this purpose, we perform experiments in the lab. 1271-48-3, Name is 1,1′-Ferrocenedicarboxaldehyde,introducing its new discovery.

Site-selective cation-pi interaction as a way of selective recognition of the caesium cation using sumanene-functionalized ferrocenes

The first sumanene-ferrocene probes for efficient and selective caesium cation (Cs+) recognition are reported. The working mechanism of the sumanene moiety as the sensing unit was based on the site-selective cation-pi interaction in its neutral state. The interactions with Cs+ were characterized by high association constant values together with low limits of detection.

Site-selective cation-pi interaction as a way of selective recognition of the caesium cation using sumanene-functionalized ferrocenes

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