Tag: M.W:100-200

Formula: C10H24N2. 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: N1,N1,N6,N6-Tetramethylhexane-1,6-diamine, is researched, Molecular C10H24N2, CAS is 111-18-2, about Chemical adsorption strategy for DMC-MeOH mixture separation. Author is Zhang, Fucan; Liu, Ping; Zhang, Kan; Song, Qing-Wen.

The effective separation of di-Me carbonate (DMC) from its methanol mixture through simple, inexpensive and low energy-input method is a promising and challenging field in the process of organic synthesis. Herein, a reversible adsorption strategy through the assistance of superbase and CO2 for DMC/methanol separation at ambient condition was described. The process was demonstrated effectively via the excellent CO2 adsorption efficiency. Notably, the protocol was also suitable to other alc. (i.e., monohydric alc., dihydric alc., trihydric alc.) mixtures The study provided guidance for potential separation of DMC/alc. mixture in the scale-up production

Compound(111-18-2)Formula: C10H24N2 received a lot of attention, and I have introduced some compounds in other articles, similar to this compound(N1,N1,N6,N6-Tetramethylhexane-1,6-diamine), if you are interested, you can check out my other related articles.

Reference:
Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica

COA of Formula: C9H16O2. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: 2,6-Dimethyl-3,5-heptanedione, is researched, Molecular C9H16O2, CAS is 18362-64-6, about Acid-catalyzed acylation reaction via C-C bond cleavage: a facile and mechanistically defined approach to synthesize 3-acylindoles. Author is Xing, Qi; Li, Pan; Lv, Hui; Lang, Rui; Xia, Chungu; Li, Fuwei.

A facile acid-catalyzed acylation of indoles with 1,3-dione as an ecofriendly acylating agent (green chem. method) was developed. This protocol combines a carbon carbon bond (C-C-bond) cleavage and heterocyclic carbon hydrogen bond (C-H bond) functionalization to form new C-C bonds. Based on the detailed mechanistic studies, a credible mechanistic pathway was proposed. Under optimized conditions the synthesis of the target compounds was achieved by a reaction of 1H-indole derivatives with 3-methyl-2,4-pentanedione, 2,4-pentanedione, 3,5-heptanedione, 1,1,1,5,5,5-hexafluoro-2,4-pentanedione, 1,3-diphenyl-1,3-propanedione, 1-phenyl-1,3-butanedione, 3-oxobutanoic acid ester, 2-(acetyl)cyclohexanone using trifluoromethanesulfonic acid as a catalyst. The title compounds thus formed included 1-(1-methyl-1H-indol-3-yl)ethanone derivs, 1-(1-methyl-1H-indol-3-yl)-1-propanone, 2,2,2-trifluoro-1-(1-methyl-1H-indol-3-yl)ethanone.

From this literature《Acid-catalyzed acylation reaction via C-C bond cleavage: a facile and mechanistically defined approach to synthesize 3-acylindoles》,we know some information about this compound(18362-64-6)COA of Formula: C9H16O2, but this is not all information, there are many literatures related to this compound(18362-64-6).

Reference:
Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica

The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: 2,6-Dimethyl-3,5-heptanedione(SMILESS: CC(C)C(CC(C(C)C)=O)=O,cas:18362-64-6) is researched.Related Products of 435294-03-4. The article 《Equilibrium in the Catalytic Condensation of Carboxylic Acids with Methyl Ketones to 1,3-Diketones and the Origin of the Reketonization Effect》 in relation to this compound, is published in ACS Omega. Let’s take a look at the latest research on this compound (cas:18362-64-6).

Acetone is the expected ketone product of acetic acid decarboxylative ketonization reaction with metal oxide catalysts used in the industrial production of ketones and for biofuels upgrade. Decarboxylative cross-ketonization of a mixture of acetic and isobutyric acids yields highly valued unsym. Me iso-Pr ketone (MIPK) along with two less valuable sym. ketones, acetone and diisopropyl ketone (DIPK). We describe a side reaction of isobutyric acid with acetone yielding the cross-ketone MIPK with monoclinic zirconia and anatase titania catalysts in the absence of acetic acid. We call it re-ketonization reaction because acetone is deconstructed and used for the construction of MIPK. Isotopic labeling of the isobutyric acid’s carboxyl group shows that it is the exclusive supplier of the carbonyl group of MIPK, while acetone provides only Me group for MIPK construction. More branched ketones, MIPK or DIPK, are less reactive in their re-ketonization with carboxylic acids. The proposed mechanism of re-ketonization supported by DFT computations starts with acetone enolization and proceeds via its condensation with surface isobutyrate to a beta-diketone similar to beta-keto acids formation in the decarboxylative ketonization of acids. Decomposition of unsym. beta-diketones with water (or methanol) by the retro-condensation reaction under the same conditions over metal oxides yields two pairs of ketones and acids (or esters in case of methanol) and proceeds much faster compared to their formation. The major direction yields thermodynamically more stable products – more substituted ketones. DFT calculations predict even a larger fraction of the thermodynamically preferred pair of products. The difference is explained by some degree of a kinetic control in the opposite direction. Re-ketonization has lower reaction rates compared to regular ketonization. Still, a high extent of re-ketonization occurs unnoticeably during the decarboxylative ketonization of acetic acid as the result of acetone reaction with acetic acid. This degenerate reaction is the major cause of the inhibition by acetone of its own rate of formation from acetic acid at high conversions.

From this literature《Equilibrium in the Catalytic Condensation of Carboxylic Acids with Methyl Ketones to 1,3-Diketones and the Origin of the Reketonization Effect》,we know some information about this compound(18362-64-6)Name: 2,6-Dimethyl-3,5-heptanedione, but this is not all information, there are many literatures related to this compound(18362-64-6).

Reference:
Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica

The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: N1,N1,N6,N6-Tetramethylhexane-1,6-diamine(SMILESS: CN(C)CCCCCCN(C)C,cas:111-18-2) is researched.Reference of Boc-D-Prolinol. The article 《Molecular level nucleation mechanisms of hierarchical MFI and MOR zeolite structures via non-stochastic pathways》 in relation to this compound, is published in Nanoscale. Let’s take a look at the latest research on this compound (cas:111-18-2).

Understanding the chem. mechanism of crystal nucleation at the mol. level is crucial for the design of architectural structures of valuable materials in the future. In this study, it has been revealed that amorphous silicate precursors, which play a role in the nucleation processes of zeolitic frameworks, can be regularly fragmented in mass spectroscopy due to the hydroxyl functional groups in their mol. structures. In this way, by using the mass spectra acquired from LDI-TOF MS, the systematic evolution stages of a common 1D precursor converting to the 3D unit cells of MFI and MOR zeolite structures observed in the same reaction medium were constructed through a nucleation mechanism at the mol. level for the first time. Here we show a novel nucleation pathway that does not occur via stochastic assembly of atoms or distinct building blocks by mol. recognition. Each of the proposed nucleation mechanisms of these different frameworks carrying structural similarities is from different combinations of sequential self-attaching intramol. covalent couplings of identical origin precursors. The dynamic mol. structure capable of forming finite building units of target frameworks during the nucleation process of this precursor, which is the polymerized form of simple 6-membered siloxane chains, has been arranged around structure directing agents before a hydrothermal reaction.

From this literature《Molecular level nucleation mechanisms of hierarchical MFI and MOR zeolite structures via non-stochastic pathways》,we know some information about this compound(111-18-2)SDS of cas: 111-18-2, but this is not all information, there are many literatures related to this compound(111-18-2).

Reference:
Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica

Related Products of 111-18-2. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: N1,N1,N6,N6-Tetramethylhexane-1,6-diamine, is researched, Molecular C10H24N2, CAS is 111-18-2, about Preparation of Silicalite-1 Nanosheets and its Application in Vapor-Phase Beckmann Rearrangement of Cyclohexanone Oxime. Author is Ge, Chao; Li, Xiaofeng; Zhao, Zhou; Yan, Zhifeng; Lian, Dandan; Lu, Jianjun.

Silicalite-1 nanosheets catalyst with a hierarchical architecture was hydrothermally synthesized using [C18H37-N+(CH3)2-C6H12-N+(CH3)2-C6H13](Br)-2 as template. It has been studied systematically by investigating the influence of different synthesis parameters and crystallization kinetics under tumbling conditions. Highly crystalline silicalite-1 nanosheets with large external surface was obtained by regulating the crystallization time and the amount of water, template and the alkalinity It was examined as catalyst for vapor-phase Beckmann rearrangement of cyclohexanone oxime to caprolactam and exhibited an excellent catalytic performance and long catalytic lifetime. This can be attributed to nest silanol groups located on the large external surface of the nanosheets. Furthermore, the high mesoporosity of nanosheets shorten the diffusion path length and reduce coking deposition, which remarkably improve catalyst stability.

From this literature《Preparation of Silicalite-1 Nanosheets and its Application in Vapor-Phase Beckmann Rearrangement of Cyclohexanone Oxime》,we know some information about this compound(111-18-2)Related Products of 111-18-2, but this is not all information, there are many literatures related to this compound(111-18-2).

Reference:
Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica

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: 111-18-2, is researched, Molecular C10H24N2, about Synthesis of Aluminophosphate Molecular Sieves in Alkaline Media, the main research direction is aluminophosphate mol sieve alk; AlPOs; alkaline media; aluminophosphate molecular sieves; crystallization mechanism; liquiid phase.Safety of N1,N1,N6,N6-Tetramethylhexane-1,6-diamine.

Unlike conventional aluminosilicate zeolites synthesized in alk. media, aluminophosphate mol. sieves (AlPOs) have always been prepared under acidic conditions in the past three decades; this has been regarded as one of essential factors for synthesis, except for the case of silica-substituted analogs (SAPOs). For the first time, we demonstrate herein a simple and generalized route for synthesizing various types of aluminophosphate mol. sieves in alk. media. A series of aluminophosphate sieves and their analogs have been prepared with different quaternary ammonium cations as structure-directing agents in this manner. The above successes have extended the systematic media from acidic or neutral to alk. for the preparation of a series of aluminophosphate mol. sieves, which possibly open an alternative route for the synthesis of aluminophosphate mol. sieves.

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Reference:
Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica

Electric Literature of C9H16O2. 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: 2,6-Dimethyl-3,5-heptanedione, is researched, Molecular C9H16O2, CAS is 18362-64-6, about Enthalpies of combustion of four methyl-substituted heptane-3,5-diones and benzoylacetone. Author is Ferrao, Maria Luisa C. C. H.; Ribeiro da Silva, M. A. V.; Suradi, S.; Pilcher, G.; Skinner, H. A..

The standard enthalpies of combustion of 2,2- and 2,6-dimethyl-, 2,2,6-trimethyl-, and 2,2,6,6-tetramethyl-3,5-heptanediones and PhCOCH2COMe (I) in O at 298.15 K were measured in a static bomb calorimeter. The standard enthalpies of formation of these ketones were calculated for the keto-enol equilibrium mixtures in the condensed state and for the liquid and gaseous enol forms from the above results. An estimate of the enthalpy of formation of I suggests that it exists predominantly in the enol form in the gaseous state.

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Reference:
Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica

The chemical properties of alicyclic heterocycles are similar to those of the corresponding chain compounds. Compound: 2-Chloro-5-methylpyridine-3,4-diamine, is researched, Molecular C6H8ClN3, CAS is 18232-91-2, about Design, synthesis, and evaluation of imidazo[4,5-c]pyridin-4-one derivatives with dual activity at angiotensin II type 1 receptor and peroxisome proliferator-activated receptor-γ, the main research direction is imidazopyridinone preparation angiotensin antagonist; ppar gamma imidazopyridinone preparation partial agonist.Name: 2-Chloro-5-methylpyridine-3,4-diamine.

Identification of a series of imidazo[4,5-c]pyridin-4-one derivatives, e.g., I and II, that act as dual angiotensin II type 1 (AT1) receptor antagonists and peroxisome proliferator-activated receptor-γ (PPARγ) partial agonists is described. Starting from a known AT1 antagonist template, conformational restriction was introduced by incorporation of an indane ring that when combined with appropriate substitution at the imidazo[4,5-c]pyridin-4-one provided a novel series possessing the desired dual activity. The mode of interaction of this series with PPARγ was corroborated through the X-ray crystal structure of I bound to the human PPARγ ligand binding domain. Modulation of activity at both receptors through substitution at the pyridone nitrogen led to the identification of potent dual AT1 antagonists/PPARγ partial agonists. Among them, II was identified possessing potent dual pharmacol. (AT1 IC50 = 7 nM; PPARγ EC50 = 295 nM, 27% max) and good ADME properties.

From this literature《Design, synthesis, and evaluation of imidazo[4,5-c]pyridin-4-one derivatives with dual activity at angiotensin II type 1 receptor and peroxisome proliferator-activated receptor-γ》,we know some information about this compound(18232-91-2)Name: 2-Chloro-5-methylpyridine-3,4-diamine, but this is not all information, there are many literatures related to this compound(18232-91-2).

Reference:
Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica

Nagatani, Takeshi published the article 《Production of mono-valent anion selective anion-exchange membranes for electrodialysis of seawater》. Keywords: anion exchange membrane tetramethyl hexanediamine seawater.They researched the compound: N1,N1,N6,N6-Tetramethylhexane-1,6-diamine( cas:111-18-2 ).Safety of N1,N1,N6,N6-Tetramethylhexane-1,6-diamine. 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:111-18-2) here.

Anion exchange membranes for salt production are required to have monovalent ion selective permeability in order to prevent operational troubles caused by gypsum scale (CaSO4) generation in seawater port reduction by electrodialysis. The author has established a method for the production of anion exchange membranes with selective permeation of monovalent ions by using TMHDA as a treatment agent. The purpose of this project was to establish a new method for producing an ion exchange membrane, and a study was conducted on a method for producing an ion exchange membrane using two methods, an electron beam graft polymerization method and a pore-filling method. The production route of the anion exchange membrane consists of the following four steps: (1) electron beam irradiation, (2) graft polymerization, (3) TMHDA treatment and (4) introduction of anion exchange groups.

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Reference:
Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica

The preparation of ester heterocycles mostly uses heteroatoms as nucleophilic sites, which are achieved by intramolecular substitution or addition reactions. Compound: N1,N1,N6,N6-Tetramethylhexane-1,6-diamine( cas:111-18-2 ) is researched.Computed Properties of C10H24N2.Mohanty, Aruna Kumar; Song, Young Eun; Jung, Boram; Kim, Jung Rae; Kim, Nowon; Paik, Hyun-jong published the article 《Partially crosslinked comb-shaped PPO-based anion exchange membrane grafted with long alkyl chains: synthesis, characterization and microbial fuel cell performance》 about this compound( cas:111-18-2 ) in International Journal of Hydrogen Energy. Keywords: diamine crosslinked PPO anion exchange membrane microbial fuel cell. Let’s learn more about this compound (cas:111-18-2).

Anion exchange membranes (AEMs) with higher ion exchange capacities (IECw) are limited to applications due to excessive swelling and higher water uptake. Crosslinked macromol. structures have been a strategy to balance between ionic conductivity and swelling in membranes. However, highly crosslinked AEMs are usually mech. brittle and poorer in ion transport. Thus we report a series of partially diamine crosslinked (X = 10%, 15%, 20%) comb-shaped AEMs functionalized with dimethylhexadecylammonium groups exhibiting improved flexibility, water uptake and swelling properties over conventional un-crosslinked or fully crosslinked materials. The higher conductivities in these PPO AEM(X) (for example, X = 20%, IECw = 1.96 mmol/g, σ(OH-) ∼ 67 mS/cm at 80°C) are attributed to the distinct nanophase separation as observed in SAXS and AFM analyses. Finally, the microbial fuel cell performances of the membranes were compared with com. available cation and anion exchange membranes.

There is still a lot of research devoted to this compound(SMILES：CN(C)CCCCCCN(C)C)Computed Properties of C10H24N2, and with the development of science, more effects of this compound(111-18-2) can be discovered.

Reference:
Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica