Month: April 2022

COA of Formula: C10BrFe. 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 Ferrocenylamines. Author is Herberhold, Max; Ellinger, Max; Kremnitz, Walter.

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.

In some applications, this compound(1273-73-0)COA of Formula: C10BrFe is unique.If you want to know more details about this compound, you can contact with the author or consult more relevant literature.

Reference:
Thiazolidine – Wikipedia,
Thiazolidine – 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: 2199-44-2, is researched, Molecular C9H13NO2, about Synthesis of novel tetrapyrroles and their zinc complexes, the main research direction is tetrapyrrole preparation complexation zinc; zinc tetrapyrrole complex preparation.Quality Control of Ethyl 3,5-Dimethyl-2-pyrrolecarboxylate.

2,2′-Tetramethyl-5,5′-bis(ethoxycarbonyl)-3,3′-dipyrromethane, prepared from 3,5-dimethyl-2-ethoxycarbonyl-1H-pyrrole and paraformaldehyde, was converted to the dicarboxylic acid and subsequently to the dialdehyde which was reacted with tert-butoxy 4-ethyl-3,5-dimethylpyrazole-2-carboxylate/3,4-diethyl-5-methylpyrazole-2-carboxylic acid/3,5-dimethyl-4-methoxycarbonylethylpyrrole-2-carboxylic acid to give I.2HBr (R = Me, R1 = Et or R = R1 = Et or R = Me, R1 = CH2CH2COOMe). I (R = Me, R1 = Et or CH2CH2COOMe) (HL) reacted with Zn(OAc)2 to give ZnL2.

In some applications, this compound(2199-44-2)Quality Control of Ethyl 3,5-Dimethyl-2-pyrrolecarboxylate is unique.If you want to know more details about this compound, you can contact with the author or consult more relevant literature.

Reference:
Thiazolidine – Wikipedia,
Thiazolidine – ScienceDirect.com

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 Free energy relationships of ionization energies measured by ultraviolet photoelectron spectroscopy in substituted pyrroles, published in 1981-04-30, which mentions a compound: 2199-44-2, Name is Ethyl 3,5-Dimethyl-2-pyrrolecarboxylate, Molecular C9H13NO2, SDS of cas: 2199-44-2.

The ionization energies of six 5-substituted-3-ethoxycarbonyl-2,4-dimethylpyrroles and seven 4-substituted 2-ethoxycarbonyl-3,5-dimethylpyrroles were determined by UPS. The relations between the lowest ionization potentials and σ were determined and the different influence of substituents in the α- and β-positions is discussed.

In some applications, this compound(2199-44-2)SDS of cas: 2199-44-2 is unique.If you want to know more details about this compound, you can contact with the author or consult more relevant literature.

Reference:
Thiazolidine – Wikipedia,
Thiazolidine – ScienceDirect.com

Zhestkov, V. P.; Mironov, A. F.; Evstigneeva, R. P. published an article about the compound: Ethyl 3,5-Dimethyl-2-pyrrolecarboxylate( cas:2199-44-2,SMILESS:O=C(C1=C(C)C=C(C)N1)OCC ).Recommanded Product: Ethyl 3,5-Dimethyl-2-pyrrolecarboxylate. 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:2199-44-2) through the article.

Alkylation of Et 3,5-dimethylpyrrole-2-carboxylate (I; R = CO2Et, R1 = H) by MeO2CCH2COCl in MeNO2 containing SnCl4 gave 65% pyrrole-3-propionate (I; R = CO2Et, R1 = COCH2CO2Me) which was alkylated by octyl bromide to give I [R = CO2Et, R1 = COCH(CO2Me)(CH2)7Me]. Subsequent decarboxylation at 200° gave 44% 2,4-dimethyl-3-(1-oxodecyl)pyrrole [I; R = H, R1 = CO(CH2)8Me].

In some applications, this compound(2199-44-2)Recommanded Product: Ethyl 3,5-Dimethyl-2-pyrrolecarboxylate is unique.If you want to know more details about this compound, you can contact with the author or consult more relevant literature.

Reference:
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 Moessbauer investigation of some derivatives of ferrocenes.Related Products of 1273-73-0.

The Moessbauer parameters of a series of ferrocene derivatives were determined The isomer shift values were independent from the nature of the substituent on the cyclopentadiene ring. The differences in the quadrupole splitting values gave information on the changes caused by the substituents in the electronic structure of the Fe central atom. The Moessbauer parameters were interpreted on the basis of MO-LCAO-SCF calculations of Shustorovich and Dyatkina. The results were in better accord with these than with the analogous calculations of Dahl and Ballhausen.

In some applications, this compound(1273-73-0)Related Products of 1273-73-0 is unique.If you want to know more details about this compound, you can contact with the author or consult more relevant literature.

Reference:
Thiazolidine – Wikipedia,
Thiazolidine – ScienceDirect.com

Popov, V. A.; Baboshin, Yu. V.; Belavina, I. G.; Cherkasov, N. Kh. published the article 《Conditions for extracting bases from the absorption fraction of coal tar》. Keywords: extraction coal tar base; absorption oil extraction coal tar base; sulfuric acid tar base extraction; phosphoric acid tar base extraction.They researched the compound: quinoliniumhydrogensulphate( cas:530-66-5 ).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:530-66-5) here.

The extraction of heterocyclic nitrogenous bases from absorption oil fractions containing ∼9% bases, 10% naphthalene, and up to 10% phenols with 30% H2SO4 [7664-93-9] or 30% H3PO4 [7664-38-2] is described. H2SO4 has a higher extraction efficiency than H3PO4, but H3PO4 is less corrosive and has less tendency to gum formation. The removal of phenols during H2SO4 treatment is not so complete and this may double the amount of unextracted bases. The presence of phenols also increases the acid consumption. The solubility of the acid sulfate and monophosphate in the absorption oil fraction is ∼0.15% by volume at 20°. This value agrees with the residual after treatment with 80% excess H2SO4. Treatment with H3PO4 under similar conditions leads to a 10-fold increase in the residual unextracted bases.

In some applications, this compound(530-66-5)Category: thiazolidine is unique.If you want to know more details about this compound, you can contact with the author or consult more relevant literature.

Reference:
Thiazolidine – Wikipedia,
Thiazolidine – ScienceDirect.com

In organic chemistry, atoms other than carbon and hydrogen are generally referred to as heteroatoms. The most common heteroatoms are nitrogen, oxygen and sulfur. Now I present to you an article called The structural systematics of protonation of some important nitrogen-base ligands. III. Some (univalent) anion salts of some hindered unidentate nitrogen bases, published in 2006, which mentions a compound: 530-66-5, mainly applied to crystal structure nitrogen base hindered unidentate salt; mol structure nitrogen base hindered unidentate salt, Synthetic Route of C9H9NO4S.

Recent structural studies of salts of the 2,2,6,6-tetramethylpiperidinium cation [tmpH]+ (chloride, bromide; thiocyanate) present as interesting dimeric or polymeric associations linked by pairs of directional H-bonds from the cationic = NH+2 moieties to ‘two-coordinate’ anions. Present single crystal x-ray studies have characterized the iodide, perchlorate, nitrate and trifluoroacetate complexes, all, like those of the preceding studies, [tmpH]+X- (anhydrous). A variety of forms are found: the nitrate compound is dimeric [[tmpH](O·NO·O)2[Htmp]], the trifluoroacetate compound being similar in form while the iodide and perchlorate salts are mixtures of dimers (with the anions essentially single atom bridges) and single-stranded helical polymers, the stoichiometric ratio of these being 1:1 and 2:1 in terms of [tmpH]X formula units, resp. A study of 4-keto-2,2,6,6-tetramethylpiperidinium thiocyanate shows it to be a dimer [[OtmpH](SCNNSC)[HtmpO]], unlike its previously studied chloride analog which is a cyclic tetramer. A new P21/n phase of diisopropylammonium chloride, derivative of the previously described P212121 and P21 forms, is reported, together with descriptions of protonated salts of the other hindered unidentate bases 2,6-lutidine (as the chloride salt), quinoline (as the perchlorate, trifluoroacetate, hexachlorostannate and bisulfate salts) and 2-quinaldine (as the chloride (anhydrous and monohydrate) and hexachlorostannate salts), all displaying arrays derivative of ion-pair formation (extended by anion-anion H-bonds as well in the bisulfate salt) and, in the case of the aromatic bases, dominated by parallel stacking.

In some applications, this compound(530-66-5)Synthetic Route of C9H9NO4S is unique.If you want to know more details about this compound, you can contact with the author or consult more relevant literature.

Reference:
Thiazolidine – Wikipedia,
Thiazolidine – ScienceDirect.com

Electric Literature of C10BrFe. 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 Copper bis(2,2,6,6-tetramethyl-3,5-heptanedionate) catalyzed synthesis of N-substituted ferrocenes. Author is Purecha, Vishal H.; Nandurkar, Nitin S.; Bhanage, Bhalchandra M.; Nagarkar, Jayashree M..

An efficient catalytic protocol for the Ullmann-type coupling reaction of both bromo and iodoferrocene with heterocyclic amines using a stable and well defined copper bis(2,2,6,6-tetramethyl-3,5-heptanedionate) complex has been developed. The protocol was applicable for the synthesis of wide variety of N-substituted ferrocenes and the desired products were obtained in good to excellent yields.

In some applications, this compound(1273-73-0)Electric Literature of C10BrFe is unique.If you want to know more details about this compound, you can contact with the author or consult more relevant literature.

Reference:
Thiazolidine – Wikipedia,
Thiazolidine – ScienceDirect.com

The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: 2-(7-Bromo-1H-indol-3-yl)acetic acid(SMILESS: O=C(O)CC1=CNC2=C1C=CC=C2Br,cas:63352-97-6) is researched.Related Products of 3326-71-4. The article 《A New Approach To Predict the Biological Activity of Molecules Based on Similarity of Their Interaction Fields and the logP and logD Values: Application to Auxins》 in relation to this compound, is published in Journal of Chemical Information and Computer Sciences. Let’s take a look at the latest research on this compound (cas:63352-97-6).

The activity of a biol. compound is dependent both on specific binding to a target receptor and its ADME (Absorption, Distribution, Metabolism, Excretion) properties. A challenge to predict biol. activity is to consider both contributions simultaneously in deriving quant. models. We present a novel approach to derive QSAR models combining similarity anal. of mol. interaction fields (MIFs) with prediction of logP and/or logD. This new classification method is applied to a set of about 100 compounds related to the auxin plant hormone. The classification based on similarity of their interaction fields is more successful for the indole than the phenoxy compounds The classification of the phenoxy compounds is however improved by taking into account the influence of the logP and/or the logD values on biol. activity. With the new combined method, the majority (8 out of 10) of the previously misclassified derivatives of phenoxy acetic acid are classified in accord with their bioassays. The recently determined crystal structure of the auxin-binding protein 1 (ABP1) enabled validation of our approach. The results of docking a few auxin related compounds with different biol. activity to ABP1 correlate well with the classification based on similarity of MIFs only. Biol. activity is, however, better predicted by a combined similarity of MIFs + logP/logD approach.

In some applications, this compound(63352-97-6)Computed Properties of C10H8BrNO2 is unique.If you want to know more details about this compound, you can contact with the author or consult more relevant literature.

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Thiazolidine – Wikipedia,
Thiazolidine – ScienceDirect.com

The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《Ferrocenylboronic and 1,1′-ferrocenylenediboronic acids and their reactions》. 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.

The reactions were run under N. To 92 g. (BuO)3B in Et2O was added with Dry Ice cooling an ethereal solution of ferrocenyl-Li prepared from 17.6 g. ferrocene by treatment with BuLli (from 39 g. BuCl and 7.6 g. Li). The mixture was allowed to come to room temperature; on the following day it was treated with aqueous H2SO4 and the organic layer extracted with aqueous KOH. The alk. extracts on acidification gave first 2.9 g. 1,1′-ferrocenylenediboronic acid (I) (total yield 13%), decomposing at 180°, then ferrocenylboronic acid (II), 26% yield, m. 1438°. The latter refluxed with aqueous ZnCl2 gave ferrocene; the diboronic acid is hydrolyzed similarly. Treatment of II with hot aqueous acetone solution of HgCl2 gave 76% yellow ferrocenylmercuric chloride, decompose 192-4° (from xylene). Similarly aqueous CuCl2 gave 84% chloroferrocene, m. 59-60° (from EtOH). CuBr2 gave 80% bromoferrocene, m. 32-3°. I and aqueous CuCl2 gave 1,1′-dichloroferrocene, m. 75-7° (from EtOH); CuBr2 gave 76% 1,1′-dibromoferrocene, m. 50-1° (from EtOH). Treatment of II with ammoniacal solution of Ag2O gave metallic Ag, and extraction with Et2O gave 52% diferrocenyl, decomposing 230°, along with 31% ferrocene. Diferrocenyl is sparingly soluble in petr. ether, soluble in MePh, C6H6, dioxane, and tetrahydrofuran.

In some applications, this compound(1273-73-0)Category: thiazolidine is unique.If you want to know more details about this compound, you can contact with the author or consult more relevant literature.

Reference:
Thiazolidine – Wikipedia,
Thiazolidine – ScienceDirect.com