Category: 478935-29-4

A novel chemoenzymatic synthesis of propyl caffeate using lipase-catalyzed transesterification in ionic liquid was written by Pang, Na;Gu, Shuang-Shuang;Wang, Jun;Cui, Hong-Sheng;Wang, Fang-Qin;Liu, Xi;Zhao, Xing-Yu;Wu, Fu-An. And the article was included in Bioresource Technology in 2013.Computed Properties of C10H20N2O4S The following contents are mentioned in the article:

Pr caffeate has the highest antioxidant capacity in the caffeate alkyl esters family, but industrial production of Pr caffeate is hindered by low yields using either the chem. or enzymic catalysis method. To set up a high-yield process for obtaining Pr caffeate, a novel chemoenzymic synthesis method using lipase-catalyzed transesterification of an intermediate Me caffeate or Et caffeate and 1-propanol in ionic liquid was established. The maximum Pr caffeate yield of 98.5% was obtained using lipase-catalyzed transesterification under the following optimal conditions: Novozym 435 as a biocatalyst, [Bmim][CF₃SO₃] as a medium, a molar ratio of Me caffeate to 1-propanol of 1:5, a mass ratio of Me caffeate to lipase of 1:20, and a reaction temperature of 60 °C. The two-step conversion of caffeic acid to Pr caffeate via Me caffeate is an efficient way to prepare Pr caffeate with an overall yield of 82.7%. This study involved multiple reactions and reactants, such as 1-Hexyl-3-methyl-1H-imidazol-3-ium hydrogensulfate (cas: 478935-29-4Computed Properties of C10H20N2O4S).

1-Hexyl-3-methyl-1H-imidazol-3-ium hydrogensulfate (cas: 478935-29-4) belongs to imidazole derivatives. Imidazole is a heterocyclic compound with a five-membered planar ring. It is amphoteric and highly polar. The pharmacophore of imidazole exists in bioactive compounds including amino acids, plant growth regulators and therapeutic agents.n increase of the alkyl chain length of the alcohols. Computed Properties of C10H20N2O4S

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Synthesis and optical properties of [C₆₀/C₇₀] fullerene derivatives containing spirobifluorene and imidazole units was written by Li, Caihua;Zeng, Heping;Ouyang, Xinhua;Wang, Ruixiang;Ji, Wei. And the article was included in Journal of Optoelectronics and Advanced Materials in 2011.Quality Control of 1-Hexyl-3-methyl-1H-imidazol-3-ium hydrogensulfate The following contents are mentioned in the article:

A series of [C₆₀/C₇₀] fullerene derivatives containing different spirobifluorene and tri-Ph imidazole were synthesized and confirmed by IR, ¹H NMR, ¹³C NMR, MALDI-TOF-MS. Their optical limiting properties were investigated by nanosecond and femtosecond laser systems. Results showed that fullerene derivatives exhibited high optical limiting properties. Lower OL thresholds of 13.7, 14.9, 15.3, 23.3, and 24.0 J/cm² were observed for C₇₀-SBF, C₆₀-TPI, C₆₀-SBF, C₆₀-FSBF, and C₆₀-BTPI resp. with the linear transmittance of 75%, which implied that these optical limiting properties increased with the degree of conjugation and electron-donating or electron-accepting abilities of donors or acceptors in donor-acceptor (D-A) structures. The strong D and A with large conjugation is an effective way to enhance OL properties. This study involved multiple reactions and reactants, such as 1-Hexyl-3-methyl-1H-imidazol-3-ium hydrogensulfate (cas: 478935-29-4Quality Control of 1-Hexyl-3-methyl-1H-imidazol-3-ium hydrogensulfate).

1-Hexyl-3-methyl-1H-imidazol-3-ium hydrogensulfate (cas: 478935-29-4) belongs to imidazole derivatives. Among the different heterocyclic compounds, imidazole is better known due to its broad range of chemical and biological properties. Imidazole has become an important synthon in the development of new drugs. Imidazole based anticancer drug find applications in cancer chemotherapy. It is used as buffer component for purification of the histidine tagged recombinant proteins in immobilized metal-affinity chromatography (IMAC).Quality Control of 1-Hexyl-3-methyl-1H-imidazol-3-ium hydrogensulfate

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Acetone-soluble cellulose acetate extracted from waste blended fabrics via ionic liquid catalyzed acetylation was written by Sun, Xunwen;Lu, Canhui;Zhang, Wei;Tian, Dong;Zhang, Xinxing. And the article was included in Carbohydrate Polymers in 2013.Category: imidazoles-derivatives The following contents are mentioned in the article:

Isolation of cellulose from waste polyester/cotton blended fabrics (WBFs) is a bottleneck for recycling and exploiting waste textiles. The objective of this study was to provide a new environmental-friendly and efficient approach for extracting cellulose derivatives and polyester from WBFs. A Bronsted acidic ionic liquid (IL) N-methyl-imidazolium bisulfate, [Hmim]HSO₄, was used as a novel catalyst for acetylation of cellulose rather than a solvent with the aim to overcome low isolation efficiency associated with the very high viscosity and relatively high costs of ILs. The extraction yield of acetone-soluble cellulose acetate (CA) was 49.3%, which corresponded to a conversion of 84.5% of the cellulose in the original WBFs; meanwhile, 96.2% of the original poly(ethylene terephthalate) (PET) was recovered. The extracted CA was characterized by ¹H NMR, FTIR, XRD and TGA anal., and the results indicated that high purity acetone-soluble CA and carbohydrate-free PET could be isolated in this manner from WBFs. This study involved multiple reactions and reactants, such as 1-Hexyl-3-methyl-1H-imidazol-3-ium hydrogensulfate (cas: 478935-29-4Category: imidazoles-derivatives).

1-Hexyl-3-methyl-1H-imidazol-3-ium hydrogensulfate (cas: 478935-29-4) belongs to imidazole derivatives. Among the different heterocyclic compounds, imidazole is better known due to its broad range of chemical and biological properties. Imidazole has become an important synthon in the development of new drugs. The pharmacophore of imidazole exists in bioactive compounds including amino acids, plant growth regulators and therapeutic agents.n increase of the alkyl chain length of the alcohols. Category: imidazoles-derivatives

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Synthesis of ethyl 2-chloropropionate catalyzed by acidic imidazolium ionic liquids was written by Zhou, Xiansi;Liu, Jiabin;Luo, Wenfeng;Zhang, Yiwen;Song, Hang. And the article was included in Huaxue Yanjiu Yu Yingyong in 2011.Formula: C10H20N2O4S The following contents are mentioned in the article:

The synthesis of Et 2-chloropropanoate in acidic imidazolium ionic liquids was studied. Four imidazolium ionic liquids were prepared and employed as catalysts in the esterification. Their acidities were measured by Hammett method and the acidity-catalytic activity relationship was investigated. [Hmim]HSO₄ was found to be the most efficient catalyst. The effects of reaction time, reaction temperature, the molar ratio of alc. to acid, the amount of ILs on the yield of Et 2-chloropropanoate were investigated. The optimum esterification conditions were obtained: reaction time was 2h, n(2-chloropropanoic acid):n(IL):n(ethanol)=1:1:2 and reaction temperature was 90°C. The yield of Et 2-chloropropanoate was 85.5% and the purity of product detected by GC was 99% under the optimum conditions. Even if the catalyst was repeatedly used for 5 times, the catalytic activity maintains stable. The reusability of the IL was excellent and it could be reused for 5 times without obviously catalytic activity decrease. This study involved multiple reactions and reactants, such as 1-Hexyl-3-methyl-1H-imidazol-3-ium hydrogensulfate (cas: 478935-29-4Formula: C10H20N2O4S).

1-Hexyl-3-methyl-1H-imidazol-3-ium hydrogensulfate (cas: 478935-29-4) belongs to imidazole derivatives. The solubility of imidazoles in ethers is lower than that in alcohols and decreases with increasing chain length of the ethers . In contrast, the solubility of benzimidazoles in alcohols (C3–C6) is higher than in water and generally decreases with a Many drugs contain an imidazole ring, such as certain antifungal drugs, the nitroimidazole series of antibiotics, and the sedative midazolam.Formula: C10H20N2O4S

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Comparable Ionicity of the Solutions of Aprotic and Protic Ionic Liquids by Anion Substitution was written by Jain, Preeti;Kumar, Anil. And the article was included in Journal of Solution Chemistry in 2017.Computed Properties of C10H20N2O4S The following contents are mentioned in the article:

Temperature dependent molar conductances and fluidities of bisulfate and Et sulfate anion-based ionic liquids were measured. The extent of dissociation of the ionic liquids was estimated from the Walden plot in term of ionicity. The ionicity mainly depends on the magnitude of Coulombic forces, altered by the anion’s Lewis basicity. Aqueous solutions of aprotic ionic liquids, in general, possesses ionicity in the range of ≈70-99%. This article reveals that the substitution of the anion by bisulfate and ethylsulfate reduces the ionicity of aqueous solution of these ionic liquids to the range of 10-37%. This is very close to that exhibited by some of the protic ionic liquids and phosphonium based ionic liquids with sweetner anions. The concentration dependent molar conductance of these ionic liquids has been fitted to Mahiuddin and Ismail’s equation. To our surprise, the molar conductances of bisulfate-based aprotic ionic liquids are remarkably high, even though these ionic liquids possess lower ionicity. This study involved multiple reactions and reactants, such as 1-Hexyl-3-methyl-1H-imidazol-3-ium hydrogensulfate (cas: 478935-29-4Computed Properties of C10H20N2O4S).

1-Hexyl-3-methyl-1H-imidazol-3-ium hydrogensulfate (cas: 478935-29-4) belongs to imidazole derivatives. Among the different heterocyclic compounds, imidazole is better known due to its broad range of chemical and biological properties. Imidazole has become an important synthon in the development of new drugs. Imidazole has been usedin the lysis, wash and elution buffer for the purification of histidine tagged Sonic Hedgehog(shh-N) protein, in elution buffer in stepwise gradient for the purification of histidine tagged aldo keto reductases using nickel affinity chromatography, as a component of homogenization buffer for the purification of phagosomal compartments from dendritic cells.Computed Properties of C10H20N2O4S

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Highly efficient synthesis of biodiesel catalyzed by CF₃SO₃H-functionalized ionic liquids: experimental design and study with response surface methodology was written by Zhang, Hui;Li, Yuqi;Lu, Zexiang;Wu, Mei;Shi, Ronghui;Chen, Lihui. And the article was included in Reaction Kinetics, Mechanisms and Catalysis in 2017.Quality Control of 1-Hexyl-3-methyl-1H-imidazol-3-ium hydrogensulfate The following contents are mentioned in the article:

Five SO₃H and CF₃SO₃H-functionalized ionic liquids (ILs) with different acidity were synthesized. The catalytic performances of various ILs were evaluated for producing biodiesel in the esterification reaction and the yield of biodiesel increased with the increase of ILs’ acid strength. [Bsmim]CF₃SO₃ was found to be a highly-efficient catalyst for increasing the biodiesel yield due to its greatly enhanced Bronsted acidity, and it was also an environmental friendly solvent for its good recyclability and hydrophilicity. The exptl. design and study were carried out by using the response surface methodol. (RSM) for optimizing the production process. The optimum biodiesel yield of nearly 99% was achieved at the conditions that the catalyst amount of 11%, the molar ratio of methanol to oleic acid of 9:1, the reaction time of 3 h and the reaction temperature of 62 °C were used. In addition, the catalyst showed an excellent reusability. This study involved multiple reactions and reactants, such as 1-Hexyl-3-methyl-1H-imidazol-3-ium hydrogensulfate (cas: 478935-29-4Quality Control of 1-Hexyl-3-methyl-1H-imidazol-3-ium hydrogensulfate).

1-Hexyl-3-methyl-1H-imidazol-3-ium hydrogensulfate (cas: 478935-29-4) belongs to imidazole derivatives. Among the different heterocyclic compounds, imidazole is better known due to its broad range of chemical and biological properties. Imidazole has become an important synthon in the development of new drugs. Imidazole based anticancer drug find applications in cancer chemotherapy. It is used as buffer component for purification of the histidine tagged recombinant proteins in immobilized metal-affinity chromatography (IMAC).Quality Control of 1-Hexyl-3-methyl-1H-imidazol-3-ium hydrogensulfate

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Kinetic analysis and process modeling for cellulose valorization in cooperative ionic liquid pairs was written by Liu, Sijie;Tang, Luo;Long, Jinxing;Guan, Jianyu;Li, Xuehui. And the article was included in Catalysis Today in 2016.Reference of 478935-29-4 The following contents are mentioned in the article:

Studies on kinetic anal. and process modeling are important and necessary for the development of novel and efficient technol. for cellulose utilization. In this study, a kinetic model for the batch reactor was described for catalytic cellulose degradation in cooperative ionic liquid pairs based on an intensive anal. of the exptl. parameters. Our fitting results show that the proposed model agrees well with the exptl. data. The kinetic parameters obtained from the above model were subsequently applied to the continuous stirred tank reactor (CSTR) by constructing a math. process model for the continuous operation of cellulose degradation combined with product separation The effects of reaction temperature, retention time, extract flow rate and distribution coefficients were intensively investigated. The numerical results demonstrate that relatively high temperature and larger retention time are favorable in cellulose conversion, whereas the product distribution coefficient and extract flow rate mainly affect the concentration of the hexane-soluble fraction (volatile chems.). The findings presented in this work will serve as a beneficial reference for further biomass transformation of industrial purpose. This study involved multiple reactions and reactants, such as 1-Hexyl-3-methyl-1H-imidazol-3-ium hydrogensulfate (cas: 478935-29-4Reference of 478935-29-4).

1-Hexyl-3-methyl-1H-imidazol-3-ium hydrogensulfate (cas: 478935-29-4) belongs to imidazole derivatives. 1H-imidazole is an imidazole tautomer which has the migrating hydrogen at position 1. It is a conjugate base of an imidazolium cation. It is a conjugate acid of an imidazolide. It is a tautomer of a 4H-imidazole. This ring system is present in important biological building blocks, such as histidine and the related hormone histamine.Reference of 478935-29-4

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Synthesis of bisphenol F through hydroxyalkylation of phenol catalyzed by Bronsted acidic ionic liquid was written by Wang, Qing;Liu, Jie;Wu, Zhi-min;Li, Yong-fei;Xiao, Dan;Tian, Juan;Tan, Ying;Liu, Yue-jin. And the article was included in Gaoxiao Huaxue Gongcheng Xuebao in 2014.Application of 478935-29-4 The following contents are mentioned in the article:

A series of Bronsted acidic ionic liquids based on N-methylimidazole cation [C₆mim] with different alkyl chain lengths and counter anions (HSO₄^–, H₂PO₄^–, CH₃COO^–) were synthesized. The structure and acidity of these ionic liquids were characterized, and the catalytic activities under different reaction conditions were investigated. The ionic liquid with HSO₄^– anion and alkyl chain length of C₆ attached to the cation exhibits the highest catalytic activity for bisphenol F (BPF) synthesis. Under the reaction conditions of temperature 90°C, reaction time 60 min, phenol/formaldehyde molar ratio 6:1 and catalyst/formaldehyde molar ratio 1:1, [C₆mim][HSO₄] shows excellent reaction activity with 80.5% yield and over 90% selectivity for bisphenol F synthesis. The ionic liquid was also found to have good reusability and low corrosion effects. These results suggest that the acidic ionic liquid [C₆mim][HSO₄] is a potential green approach to produce BPF. This study involved multiple reactions and reactants, such as 1-Hexyl-3-methyl-1H-imidazol-3-ium hydrogensulfate (cas: 478935-29-4Application of 478935-29-4).

1-Hexyl-3-methyl-1H-imidazol-3-ium hydrogensulfate (cas: 478935-29-4) belongs to imidazole derivatives. The solubility of imidazoles in ethers is lower than that in alcohols and decreases with increasing chain length of the ethers . In contrast, the solubility of benzimidazoles in alcohols (C3–C6) is higher than in water and generally decreases with a Many drugs contain an imidazole ring, such as certain antifungal drugs, the nitroimidazole series of antibiotics, and the sedative midazolam.Application of 478935-29-4

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Kinetic study on esterification of biodiesel component prepared in acidic ionic liquids was written by Bo, Yang;Lu, Qinfang;Li, Guochao. And the article was included in Gongye Cuihua in 2010.Product Details of 478935-29-4 The following contents are mentioned in the article:

Four kinds of Brφnsted acidic ionic liquids with nitrogen chem. groups and different anions were synthesized. The kinetics of esterification of Me oleate was studied using Brφnsted acidic ionic liquids as the catalysts. Through experiments of kinetics and by Matlab programs and regression of the exptl. data, the reaction dynamics parameters were determined and the reaction dynamic model was set up. The catalytic activities of ionic liquids were investigated. The results that showed under the coaction of anions and cations, the kinetic equation of esterification was as follows: r=k(c_A0-x)^1.72(c_B0-x)^2.01-k_-1x^1.85, and the sequence of reaction rate constants k of nine kinds of ionic liquids in catalyst system was as follows: [MPy]HSO₄ > [Py]HSO₄ > [Et₃NH]HSO₄ > [MPy]H₂PO₄ > [Py]H₂PO₄ > [Et₃NH]H₂PO₄ > [HMIm]HSO₄ > [HMIm]H₂PO₄ > [MPy]NO₃. This study involved multiple reactions and reactants, such as 1-Hexyl-3-methyl-1H-imidazol-3-ium hydrogensulfate (cas: 478935-29-4Product Details of 478935-29-4).

1-Hexyl-3-methyl-1H-imidazol-3-ium hydrogensulfate (cas: 478935-29-4) belongs to imidazole derivatives. 1H-imidazole is an imidazole tautomer which has the migrating hydrogen at position 1. It is a conjugate base of an imidazolium cation. It is a conjugate acid of an imidazolide. It is a tautomer of a 4H-imidazole. Imidazole also acts as a microtubule destabilizing agents and inhibits topoisomerase and Cytochrome P450 Family 26 Subfamily A Member 1 (CYP26A1) enzymes.Product Details of 478935-29-4

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Synthesis of dioctyl succinate catalyzed by task-specific ionic liquids under microwave irradiation and electrical heating was written by Long, Yu-lin;Chen, Bing;Yang, Jun;Yin, Wan-xiang. And the article was included in Huaxue Yanjiu Yu Yingyong in 2012.Computed Properties of C10H20N2O4S The following contents are mentioned in the article:

A series of task-specific ionic liquids(TSILs) that bear an alkane sulfonic acid group were synthesized. Esterification of succinic acid with octanol was investigated using these TSILs as catalysts in both microwave irradiation and traditional heating ways. Effect of the anion and cation of the TSILs on catalytic performance was also investigated. Compared with elec. heating way, TSILs exhibited an enhanced reaction efficiency and short reaction time under microwave irradiation Effect of catalyst amount, reaction time and the acid-to-alc. ratio on conversion of succinic acid was systematically investigated. The results showed that the conversion of succinic acid reached 95.74% by using[PSPy]HSO₄ as the catalyst under succinic acid/octanol molar ratio of 1:4, succinic acid mass fraction of 3wt% in TSILs, reaction temperature of 150°C, reaction time of 15 min and power of 400W. In addition, the [PSPy]HSO₄ exhibited excellent stability and catalytic activity. It could be reused six times without considerable loss of activity and still had a conversion of 93.58%. This study involved multiple reactions and reactants, such as 1-Hexyl-3-methyl-1H-imidazol-3-ium hydrogensulfate (cas: 478935-29-4Computed Properties of C10H20N2O4S).

1-Hexyl-3-methyl-1H-imidazol-3-ium hydrogensulfate (cas: 478935-29-4) belongs to imidazole derivatives. Among the different heterocyclic compounds, imidazole is better known due to its broad range of chemical and biological properties. Imidazole has become an important synthon in the development of new drugs. Many drugs contain an imidazole ring, such as certain antifungal drugs, the nitroimidazole series of antibiotics, and the sedative midazolam.Computed Properties of C10H20N2O4S

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem