Tag: M.W=100-150

Zhang, Liang; Kong, Xiangjin; Liu, Shuya; Zhao, Zhiguo; Yu, Qun; Wang, Wei; Wang, Yao published the artcile< Succinimide-Promoted Malonylamination of Alkenes with Amines and Iodonium Ylides via Trapping of Transient Aminium Radical Cations>, Synthetic Route of 10541-78-3, the main research area is succinimide promoted malonylamination alkene amine iodonium ylide.

A conceptually distinct strategy enabling malonylamination of alkenes with abundant amines and iodonium ylides without assistance of any transition metal was developed. Succinimide was identified as a proton shuttle that can not only largely accelerate the process of trapping highly unstable radical ion pairs with alkenes but also significantly improve the chem. yields.

Organic Letters published new progress about Addition reaction (carboamination). 10541-78-3 belongs to class ethers-buliding-blocks, and the molecular formula is C8H11NO, Synthetic Route of 10541-78-3.

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Shalini, Sorout; Matzger, Adam J. published the artcile< Ethylene oxide functionalization enhances the ionic conductivity of a MOF>, Category: ethers-buliding-blocks, the main research area is ethylene oxide ionic conductivity functionalization.

Varying the degree of ethylene oxide (EO) functionalization of the zirconium MOF UiO-68 affords two novel MOFs; UiO-68-EO and UiO-68-2EO exhibit solvent-free ionic conductivity upon loading LiTFSI in their pores. Incorporating EO chains provides a pathway for lithium ion migration between the coordinated sites and results in an ionic conductivity of 3.8 x 10-7 S cm-1 and 3.9 x 10-4 S cm-1 at 90 °C for UiO-68-EO/LiTFSI and UiO-68-2EO/LiTFSI resp.

Chemical Communications (Cambridge, United Kingdom) published new progress about Differential scanning calorimetry. 6482-24-2 belongs to class ethers-buliding-blocks, and the molecular formula is C3H7BrO, Category: ethers-buliding-blocks.

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Gao, Xinpei; Mariani, Alessandro; Jeong, Sangsik; Liu, Xu; Dou, Xinwei; Ding, Markus; Moretti, Arianna; Passerini, Stefano published the artcile< Prototype rechargeable magnesium batteries using ionic liquid electrolytes>, Formula: C3H7BrO, the main research area is magnesium ion speciation deposition dissolution process magnesium battery electrolyte; rechargeable magnesium battery ionic liquid electrolyte coordination sphere.

Understanding Mg-ion speciation is of utmost importance to the rational design of electrolytes for rechargeable magnesium batteries. Herein, we report an effort to better understand Mg-ion speciation in ionic liquid (IL) electrolytes through the design of alkoxy-functionalized cations with different alkoxy substituent. In contrast with previous studies focusing on the coordination sphere of Mg2+, the comparison of Raman spectroscopy, electrochem. and DFT calculation results of various IL-based electrolytes suggests that the coordination sphere of transient Mg+ plays a key role in Mg reversible deposition/dissolution process. Finally, a prototype Mg/V2O5 cell using the noncorrosive IL-based electrolyte is demonstrated for the first time, exhibiting a remarkable initial discharge capacity of 140 mAh g-1 and reversible capacity of 100 mAh g-1.

Journal of Power Sources published new progress about Battery electrolytes. 6482-24-2 belongs to class ethers-buliding-blocks, and the molecular formula is C3H7BrO, Formula: C3H7BrO.

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Kakinuma, Shohei; Shirota, Hideaki published the artcile< Femtosecond Raman-Induced Kerr Effect Study of Temperature-Dependent Intermolecular Dynamics in Pyrrolidinium-Based Ionic Liquids: Effects of Anion Species>, HPLC of Formula: 6482-24-2, the main research area is pyrrolidinium ionic liquid intermol dynamics anion RIKES.

We investigated the temperature dependence of the intermol. vibrational dynamics of pyrrolidinium-based ionic liquids (ILs) with 10 different anion species using femtosecond Raman-induced Kerr effect spectroscopy. The features of the temperature-dependent vibrational spectra vary with the different anions. In the case of the ILs with spherical top anions, such as tetrafluoroborate and hexafluorophosphate, and trifluoromethanesulfonate, the spectral intensity in the low-frequency region below 50 cm-1 increases with rising temperature, while that in the high-frequency region above 50 cm-1 remains almost unchanged. Similar temperature-dependent features were also found in the bis(fluorosulfonyl)amide and bis(perfluoroalkylsulfonyl)amide salts. However, the difference spectra at resp. temperature relative to 293 K indicate that the spectra of the bis(fluorosulfonyl)amide and bis(perfluoroalkylsulfonyl)amide salts are more temperature-sensitive in the low-frequency region below 50 cm-1 compared to those of the tetrafluoroborate, hexafluorophosphate, and trifluoromethanesulfonate salts. The spectra of 1-butyl-1-methylpyrrolidinium-based ILs with dicyanamide and tricyanomethide anions show a characteristic temperature dependence; in addition to an increase of the spectral intensity in the low-frequency region below 50 cm-1, a red shift of the spectra in the high-frequency side above 50 cm-1 was observed with increasing temperature This implies that the librational motions of planar dicyanamide and tricyanomethide anions contribute substantially to the low-frequency spectra. We also compared the temperature-dependent low-frequency spectra of 1-butyl-1-methylpyrrolidinium- and 1-(2-methoxyethyl)-1-methylpyrrolidinium-based ILs with some anions. Although the spectral shapes are slightly different in the range of 70-150 cm-1, which can be attributed to the intramol. vibrational modes of the cations, the temperature dependence of the spectral shapes is quite similar, indicating that the ether substitution in the cation side groups has little effects on the temperature dependence of the low-frequency spectra. The fragilities of the ILs were also estimated from the temperature-dependent viscosities and the glass-transition temperatures The fragility parameter seems to be correlated with the temperature dependence of the first moment of the low-frequency spectral bands mainly arising from the intermol. vibrations of the ILs.

Journal of Physical Chemistry B published new progress about Anions. 6482-24-2 belongs to class ethers-buliding-blocks, and the molecular formula is C3H7BrO, HPLC of Formula: 6482-24-2.

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Zhang, Ying; Gao, Huanjie; Guo, Jiabao; Zhang, Hao; Yao, Xiaoquan published the artcile< Selective electrochemical para-thiocyanation of aromatic amines under metal-, oxidant- and exogenous-electrolyte-free conditions>, Quality Control of 10541-78-3, the main research area is thiocyanato aromatic compound preparation green chem regioselective; aromatic amine ammonium thiocyanate electrochem oxidative thiocyanation.

An electrochem. oxidative para-C-H-thiocyanation of aromatic amines RN(R1)R2 [R = Ph, naphthalen-1-yl, 2-methylphenyl, etc.; R1 = H, Me, Et, n-Pr, Ph; R2 = Me, Et, Ph, etc.; R1R2 = -(CH2)4-, -(CH2)5-, -(CH2)2O(CH2)2-] has been developed to construct thiocyanato aromatic compounds ;R3N(R1)R2 (R3 = 4-(cyanosulfanyl)benzen-1-yl, 4-(cyanosulfanyl)-3,5-dimethylbenzen-1-yl, 4-(cyanosulfanyl)naphthalen-1-yl, etc.) under metal-, oxidant-, and exogenous-electrolyte-free conditions in an undivided cell. The transformation is compatible with a range of primary, secondary, and tertiary amines and shows good functional group tolerance. This approach provides an economical and environmentally benign way for para-thiocyanation of aromatic amines.

Chemical Communications (Cambridge, United Kingdom) published new progress about Aromatic amines Role: RCT (Reactant), SPN (Synthetic Preparation), RACT (Reactant or Reagent), PREP (Preparation). 10541-78-3 belongs to class ethers-buliding-blocks, and the molecular formula is C8H11NO, Quality Control of 10541-78-3.

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Yu, Zhaozhuo; Li, Zhengyi; Zhang, Lilong; Zhu, Kaixun; Wu, Hongguo; Li, Hu; Yang, Song published the artcile< A substituent- and temperature-controllable NHC-derived zwitterionic catalyst enables CO2 upgrading for high-efficiency construction of formamides and benzimidazoles>, Related Products of 10541-78-3, the main research area is carbon dioxide formamide benzimidazole zwitterionic catalyst.

Chemocatalytic upgrading of the greenhouse gas CO2 to valuable chems. and biofuels has attracted broad attention in recent years. Among the reported approaches, N-formylation of CO2 with an amine is of great significance due to its versatility in the construction of N-containing linear and cyclic skeletons. Herein, a stable N-heterocyclic carbene-carboxyl adduct (NHC-CO2) was facilely prepared and could be used as a recyclable zwitterionic catalyst for efficient CO2 reductive upgrading via either N-formylation or further coupling with cyclization under mild conditions (25°C, 1 atm CO2) using hydrosilane as a hydrogen source. More than 30 different alkyl and aromatic amines could be transformed into the corresponding formamides or benzimidazoles with remarkable yields (74%-98%). The electronic effect of the introduced substituent on NHC-CO2 was found to evidently affect the thermostability and nucleophilicity of the zwitterionic catalyst, which is directly correlated with its catalytic activity. Moreover, NHC-CO2 could supply CO2 by in situ decarboxylation at a specific temperature that is dependent on the introduced substituent type. Exptl. and computational studies showed that the carboxyl species on NHC-CO2 was not only a nucleophilic center, but also a C1 source which rapidly captures or substitutes ambient CO2 during hydrosilylation. In addition, a simple and green conceptual process was designed for the product purification and catalyst recycling, with a good feasibility for small-scale production

Green Chemistry published new progress about Cyclization. 10541-78-3 belongs to class ethers-buliding-blocks, and the molecular formula is C8H11NO, Related Products of 10541-78-3.

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Diez-Castellnou, Marta; Suo, Rongtian; Marro, Nicolas; Matthew, Saphia A. L.; Kay, Euan R. published the artcile< Rapidly Adaptive All-covalent Nanoparticle Surface Engineering>, Application of C3H7BrO, the main research area is gold nanoparticle surface engineering equilibration; acetals; adaptive colloidal nanoparticles; dynamic covalent chemistry; gold nanoparticles; hydrazones.

Emerging nanotechnologies demand the manipulation of nanoscale components with the same predictability and programmability as is taken for granted in mol. synthetic methodologies. Yet installing appropriately reactive chem. functionality on nanomaterial surfaces has previously entailed compromises in terms of reactivity scope, functionalization d., or both. Here, we introduce an idealized dynamic covalent nanoparticle building block for divergent and adaptive post-synthesis modification of colloidal nanomaterials. Acetal-protected monolayer-stabilized gold nanoparticles are prepared via operationally simple protocols and are stable to long-term storage. Tunable surface densities of reactive aldehyde functionalities are revealed on-demand, leading to a wide range of adaptive surface engineering options from one nanoscale synthon. Anal. tractable with mol. precision, interfacial reaction kinetics and dynamic surface constitutions can be probed in situ at the ensemble level. High functionalization densities combined with rapid equilibration kinetics enable environmentally adaptive surface constitutions and rapid nanoparticle property switching in response to simple chem. effectors.

Chemistry – A European Journal published new progress about Concentration (process). 6482-24-2 belongs to class ethers-buliding-blocks, and the molecular formula is C3H7BrO, Application of C3H7BrO.

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Fang, Wan-Yin; Qin, Hua-Li published the artcile< Cascade Process for Direct Transformation of Aldehydes (RCHO) to Nitriles (RCN) Using Inorganic Reagents NH2OH/Na2CO3/SO2F2 in DMSO>, Safety of 1-Bromo-2-methoxyethane, the main research area is nitrile chemoselective one step preparation; condensation aldehyde hydroxylamine sulfuryl fluoride; cascade oximation elimination reaction aldehyde hydroxylamine sulfuryl fluoride.

Aryl, α,β-unsaturated, and alkyl nitriles were prepared in one step from the corresponding aldehydes by treatment with hydroxylamine hydrochloride, Na2CO3, SO2F2, and DMSO at ambient temperature

Journal of Organic Chemistry published new progress about Aldehydes Role: RCT (Reactant), RACT (Reactant or Reagent). 6482-24-2 belongs to class ethers-buliding-blocks, and the molecular formula is C3H7BrO, Safety of 1-Bromo-2-methoxyethane.

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Shang, Yaping; Jonnada, Krishna; Yedage, Subhash Laxman; Tu, Hua; Zhang, Xiaofeng; Lou, Xin; Huang, Shijun; Su, Weiping published the artcile< Rhodium(III)-catalyzed indole synthesis at room temperature using the transient oxidizing directing group strategy>, Recommanded Product: 2-Methoxy-N-methylaniline, the main research area is alkyl indole preparation; internal alkyne aniline transient oxidizing directing group rhodium catalyst.

Rh-catalyzed reactions of N-alkyl anilines with internal alkynes at room temperature have been developed using an in situ generated N-nitroso group as a transient oxidizing directing group. Due to mild reaction conditions, this method enabled synthesis of a broad range of N-alkyl indoles, including even two indole-based medicinal compds I (R1 = Me, allyl, C6H5, etc.; R2 = 5-Me, 6-CH2OMe, 5-NO2, etc.) and II (R1 = Me, Et, i-Pr, etc.; R2 = H, 5-Me, 5-CO2Me, etc.; R3 = n-Bu, C6H5, 4-MeC6H5, etc.; R4 = Me, COMe, 3-FC6H5, etc.). This work disclosed the feasibility of the transient oxidizing directing group strategy in C-H functionalization reactions, which possesses the potential to enhance overall step-economy and impart new reactivity patterns to substrates.

Chemical Communications (Cambridge, United Kingdom) published new progress about Alkynes, internal Role: RCT (Reactant), RACT (Reactant or Reagent). 10541-78-3 belongs to class ethers-buliding-blocks, and the molecular formula is C8H11NO, Recommanded Product: 2-Methoxy-N-methylaniline.

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem

Kato, Eisuke; Oikawa, Kenichi; Takahashi, Keisuke; Kawabata, Jun published the artcile< Synthesis and the intestinal glucosidase inhibitory activity of 2-aminoresorcinol derivatives toward an investigation of its binding site>, Name: 2-Amino-3-methoxyphenol, the main research area is intestine glucosidase inhibitor aminoresorcinol derivative.

2-Aminoresorcinol is a potent and selective intestinal glucosidase inhibitor. Unlike the majority of glucosidase inhibitors, it shows an uncompetitive mode of inhibition. In this study, we tested the intestinal glucosidase inhibitory activity of various 2-aminoresorcinol derivatives We found that structural changes, in amino and two phenolic hydroxyl groups had a neg. impact on inhibitory activity, but methylation of the phenolic hydroxyl group was found to maintain its activity and replacement of the aromatic ring with an acyl or alkoxy carbonyl group at the 4th position also retained its activity. This enable us to design a mol. probe for further study of the inhibition mechanism of 2-aminoresorcinol.

Bioscience, Biotechnology, and Biochemistry published new progress about Carbonyl group. 40925-69-7 belongs to class ethers-buliding-blocks, and the molecular formula is C7H9NO2, Name: 2-Amino-3-methoxyphenol.

Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem