Month: November 2022

Maeda, Bumpei published the artcilePhotoredox-Catalyzed Benzylic Esterification via Radical-Polar Crossover, Computed Properties of 104-01-8, the main research area is benzylic ester preparation; arylacetic acid diacetoxyiodobenzene photoredox decarboxylative esterification catalyst.

Photoredox-catalyzed C-O bond formation reactions are reported. The decarboxylative esterification reaction allows the conversion of a variety of arylacetic acids into the corresponding benzyl carboxylates. Furthermore, the use of (diacetoxyiodo)benzene allows the conversion of the benzylic C-H bond through hydrogen atom transfer. The reactions were applied to the divergent transformation of pharmaceuticals via decarboxylative or C-H esterification reactions.

Organic Letters published new progress about Carboxylic acids Role: RCT (Reactant), RACT (Reactant or Reagent) (arylacetic). 104-01-8 belongs to class isoquinoline, name is 4-Methoxyphenylacetic acid, and the molecular formula is C9H10O3, Computed Properties of 104-01-8.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Lee, Sang Eon published the artcileEffects of enzymatic modification of wheat protein on the formation of pyrazines and other volatile components in the Maillard reaction, Synthetic Route of 21834-92-4, the main research area is wheat gluten hydrolyzate pyrazine volatile Maillard reaction.

Enzymically hydrolyzed wheat gluten hydrolyzate (WGH) was deamidated using glutaminase to produce deamidated wheat gluten hydrolyzate (DWGH). Volatile components were analyzed in WGH and DWGH thermally reacted with glucose or fructose. In the reaction system containing glucose, 19 pyrazines, 2 furans, and 5 sulfur-containing components were detected in WGH, while 34 pyrazines, 4 furans, and 7 sulfur-containing components were found in DWGH. In the system containing fructose, 24 pyrazines, 3 furans, and 6 sulfur-containing components were identified in the thermal reaction of WGH, whereas 36 pyrazines, 4 furans, and 8 sulfur-containing components were found in DWGH. The volatile components increased in DWGH, both qual. and quant., mainly due to free ammonia released by deamidation. More volatiles were also developed in WGH and DWGH with fructose than with glucose. It was found that ammonia released from wheat protein via deamidation participated in the generation of diverse volatile components including pyrazines in the Maillard reaction.

Food Chemistry published new progress about Alcohols Role: FMU (Formation, Unclassified), FORM (Formation, Nonpreparative). 21834-92-4 belongs to class isoquinoline, name is 5-Methyl-2-phenylhex-2-enal, and the molecular formula is C13H16O, Synthetic Route of 21834-92-4.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Bian, Yinghui published the artcileUnderstanding the oxidation and reduction reactions of sulfur in rechargeable aluminum-sulfur batteries with deep eutectic solvent and ionic liquid electrolytes, Application In Synthesis of 598-50-5, the main research area is aluminum sulfur secondary battery deep eutectic solvent; ionic liquid electrolyte; aluminum-sulfur batteries; deep eutectic solvents; electrolytes; ionic liquids; oxidation.

Al-based batteries are promising next-generation rechargeable batteries owing to the abundance of raw materials and their high potential energy d. The Al-S system has attracted considerable attention because of its high energy d. and low cost. However, its low discharge voltage plateau (0.6-1.2 V) hampers its practical application. Herein, eight ionic liquids or deep eutectic solvents were studied as electrolyte candidates for an Al-S cell. This was the first study to demonstrate that an Al-S cell based on an AlCl3/acetamide electrolyte (1.3 molar ratio) showed high discharge voltage plateaus (1.65-1.95 V) and a charging cut-off voltage of 2.5 V in Al-S cells. An Al-S cell of 0.33 mAh capacity with the AlCl3/acetamide electrolyte successfully lit up a red LED (forward voltage 1.6-2.0 V) for around 2 h. This work may help in promoting the development of high-performance and low-cost Al-S cells.

ChemSusChem published new progress about Acrylic polymers Role: TEM (Technical or Engineered Material Use), USES (Uses). 598-50-5 belongs to class isoquinoline, name is 1-Methylurea, and the molecular formula is C2H6N2O, Application In Synthesis of 598-50-5.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Ishihara, Kazuaki published the artcileEnantio- and Site-Selective α-Fluorination of N-Acyl 3,5-Dimethylpyrazoles Catalyzed by Chiral π-CuII Complexes, Safety of 4-Methoxyphenylacetic acid, the main research area is enantioselective regioselective fluorination acyldimethylpyrazole chiral pi copper complex; asymmetric catalysis; copper; fluorination; pyrazoles; π-cation interactions.

Catalytic enantioselective α-fluorination reactions of carbonyl compounds are among the most powerful and efficient synthetic methods for constructing optically active α-fluorinated carbonyl compounds Nevertheless, α-fluorination of α-nonbranched carboxylic acid derivatives is still a big challenge because of relatively high pKa values of their α-hydrogen atoms and difficulty of subsequent synthetic transformation without epimerization. Herein we show that chiral copper(II) complexes of 3-(2-naphthyl)-L-alanine-derived amides are highly effective catalysts for the enantio- and site-selective α-fluorination of N-(α-arylacetyl) and N-(α-alkylacetyl) 3,5-dimethylpyrazoles [e.g., I → II (99%, 91% ee)]. The substrate scope of the transformation is very broad (25 examples including a quaternary α-fluorinated α-amino acid derivative). α. α-Fluorinated products were converted into the corresponding esters, secondary amides, tertiary amides, ketones, and alcs. with almost no epimerization in high yield.

Angewandte Chemie, International Edition published new progress about Acidity (LFER for acidity of N-acylpyrazoles vs. mol. electrostatic potential). 104-01-8 belongs to class isoquinoline, name is 4-Methoxyphenylacetic acid, and the molecular formula is C9H10O3, Safety of 4-Methoxyphenylacetic acid.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Wei, Duo published the artcileRhenium-Catalyzed Reduction of Carboxylic Acids with Hydrosilanes, Computed Properties of 104-01-8, the main research area is rhenium catalyzed photochem reduction carboxylic acid hydrosilane; disilylacetal preparation; aldehyde preparation.

Re2(CO)10 efficiently catalyzes the direct reduction of various carboxylic acids under mild conditions (rt, irradiation 350 or 395 nm). While aliphatic carboxylic acids were readily converted to the corresponding disilylacetals with low catalyst loading (0.5 mol %) in the presence of Et3SiH (2.2 equiv), aromatic analogs required more drastic conditions (Re2(CO)10 5 mol %, Ph2MeSiH 4.0 equiv) to afford the corresponding aldehydes after acid treatment.

Organic Letters published new progress about Acetals Role: SPN (Synthetic Preparation), PREP (Preparation) (disilylacetals). 104-01-8 belongs to class isoquinoline, name is 4-Methoxyphenylacetic acid, and the molecular formula is C9H10O3, Computed Properties of 104-01-8.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Zhen, Long published the artcileSynthesis of Thiocarbamoyl Fluorides and Isothiocyanates Using CF3SiMe3 and Elemental Sulfur or AgSCF3 and KBr with Amines, Recommanded Product: 4-Methoxy-N-methylaniline, the main research area is thiocarbamoyl fluoride isothiocyanate preparation amine sulfur trifluoromethyl trimethylsilane.

Reactions of thiocarbonyl fluoride derived from cheap, readily available, and widely used CF3SiMe3, elemental sulfur, and KF with secondary amines and primary amines at room temperature in THF provided a wide variety of thiocarbamoyl fluorides and isothiocyanates in moderate to excellent yields, resp. The two reactions show broad substrate scope and good functional group tolerance. Moreover, AgSCF3 reacts with secondary/primary amines under KBr at room temperature, affording quant. thiocarbamoyl fluorides/isothiocyanates, which feature late-stage application.

Organic Letters published new progress about Fluorides Role: SPN (Synthetic Preparation), PREP (Preparation) (thiocarbamoyl). 5961-59-1 belongs to class isoquinoline, name is 4-Methoxy-N-methylaniline, and the molecular formula is C8H11NO, Recommanded Product: 4-Methoxy-N-methylaniline.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Li, Jingyi published the artcileA broadly tuned mouse odorant receptor that detects nitrotoluenes, COA of Formula: C13H16O, the main research area is odorant receptor MOR25617 broad specificity nitrotoluene explosive biosensor.

Mammals employ large numbers of odorant receptors to sample and identify volatile chems. in the environment. These receptors are thought to vary not only in specificity for particular odorants, but also in breadth of tuning. That is, some odorant receptors are narrowly focused on a few closely related structures, while other odorant receptors may be “”broadly tuned””, responding to a wide variety of odorant structures. In this study, we have performed a detailed examination the mouse odorant receptor MOR256-17, demonstrating that this receptor is broadly tuned. This receptor responds to odorant structures that span a significant portion of a multi-dimensional odor space. However, we found that broad tuning was not a defining characteristic of other members the MOR256 subfamily. Two addnl. members of this odorant receptor subfamily (MOR256-8 and MOR256-22) were more narrowly focused on small sets of odorant structures. Interestingly, the receptive range of MOR256-17 encompassed a variety of nitrotoluenes, including various trinitrotoluene synthesis intermediates, degradation products and trinitrotoluene itself, suggesting the potential utility of odorant receptors in the development of sensing technologies for the detection of explosives and other forms of contraband.

Journal of Neurochemistry published new progress about Biosensors (for detection of explosives, potential use of odorant receptors in). 21834-92-4 belongs to class isoquinoline, name is 5-Methyl-2-phenylhex-2-enal, and the molecular formula is C13H16O, COA of Formula: C13H16O.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Wang, Xin-Xing published the artcileMetal-and oxidant-free electrochemical synthesis of aryl sulfides, Recommanded Product: 1,3-Dimethoxybenzene, the main research area is aryl sulfide preparation electrochem; arene disulfide sulfidation.

A metal- and oxidant-free electrochem. synthesis of aryl sulfides was developed through a C-H sulfidation reaction of arenes and disulfides. Compared with traditional organic synthesis methods, this direct electrochem. approach efficiently generates aryl sulfides under catalyst- and oxidant-free conditions with the superiorities of wide substrate compatibility, mild reaction condition and waster free. At room temperature, various aryl thiols could be transformed smoothly in an undivided cell. Based on cyclic voltammetry (CV) and control experiments, the possible reaction mechanism was also proposed. The gram-scale synthesis emphasizes the practicability of this electrochem. strategy.

Journal of the Electrochemical Society published new progress about Aromatic compounds, disulfides Role: RCT (Reactant), RACT (Reactant or Reagent). 151-10-0 belongs to class isoquinoline, name is 1,3-Dimethoxybenzene, and the molecular formula is C8H10O2, Recommanded Product: 1,3-Dimethoxybenzene.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Nishino, Kota published the artcilePalladium(II)/Copper(II)-Catalyzed C-H Sulfidation or Selenation of Arenes Leading to Unsymmetrical Sulfides and Selenides, Category: isoquinoline, the main research area is sulfide selenide preparation; arene sulfidation selenation palladium copper catalyst.

A novel palladium(II)/copper(II)-catalyzed sulfidation of the C-H bond in electron-rich arenes and in pentafluorobenzene with disulfides was developed. This catalytic system can be used to efficiently produce various types of either unsym. aryl sulfides or alkyl aryl sulfides. The present protocol could also be applied to the direct preparation of unsym. aryl selenides via C-H selenation.

European Journal of Organic Chemistry published new progress about Aromatic compounds, disulfides Role: RCT (Reactant), RACT (Reactant or Reagent). 151-10-0 belongs to class isoquinoline, name is 1,3-Dimethoxybenzene, and the molecular formula is C8H10O2, Category: isoquinoline.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Bazzi, Sakna published the artcileElectrogenerated Sm(II)-Catalyzed CO2 Activation for Carboxylation of Benzyl Halides, Category: isoquinoline, the main research area is phenylacetic acid preparation; benzyl halide carbon dioxide reductive electrochem carboxylation samarium catalyst.

Sm(II)-catalyzed carboxylation of benzyl halides is reported through the electrochem. reduction of CO2. The transformation proceeds under mild reaction conditions to afford the corresponding phenylacetic acids in good to excellent yields. This user-friendly and operationally simple protocol represents an alternative to traditional strategies, which usually proceeds through the C(sp3)-halide activation pathway.

Organic Letters published new progress about Aromatic carboxylic acids Role: SPN (Synthetic Preparation), PREP (Preparation). 104-01-8 belongs to class isoquinoline, name is 4-Methoxyphenylacetic acid, and the molecular formula is C9H10O3, Category: isoquinoline.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem