Tag: M.W=150-200

Kato, Kahoko; Deng, Dian; Kita, Yusuke; Kamata, Keigo; Hara, Michikazu published the artcile< Primary amine synthesis by hydrogen-involving reactions over heterogeneous cobalt catalysts>, Reference of 3959-07-7, the main research area is primary amine selective preparation; nitrile hydrogenation cobalt catalyst; carbonyl compound reductive amination cobalt catalyst.

A composite of metallic cobalt and silica particles that exhibits high catalytic performance for the selective synthesis of primary amines RNH2 [R = heptyl, cyclohexyl, Bn, [5-(hydroxymethyl)oxolan-2-yl]methyl, etc.] via hydrogenation of nitriles RCN and reductive amination, even under mild conditions was reported. A mechanistic study revealed that the substrate nitrile and the product amine retarded the hydrogenation of secondary imine intermediates, which resulted in a selective reaction. On the basis of this knowledge, the selectivity for the primary amine was further improved by the addition of coordinating organic mols., which provided new insights into the control of selectivity toward primary amines unlike that with classical methods using ammonia.

Catalysis Science & Technology published new progress about Carbonyl compounds (organic) Role: RCT (Reactant), RACT (Reactant or Reagent). 3959-07-7 belongs to class bromides-buliding-blocks, and the molecular formula is C7H8BrN, Reference of 3959-07-7.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Zeynizadeh, Behzad; Mousavi, Hossein; Mohammad Aminzadeh, Farkhondeh published the artcile< A hassle-free and cost-effective transfer hydrogenation strategy for the chemoselective reduction of arylnitriles to primary amines through in situ-generated nickel (II) dihydride intermediate in water>, Synthetic Route of 3959-07-7, the main research area is benzonitrile reduction chemoseslective green chem; benzyl amine preparation.

A new, simple, efficient, inexpensive, and chemoselective transfer hydrogenation strategy was introduced for the straightforward reduction of arylnitriles to corresponding primary amines using sodium borohydride (NaBH4) and nickel acetate tetrahydrate (Ni(OAc)2•4H2O) through in situ-generated nickel (II) dihydride intermediate in the water medium at 50°. The presented methodol. featured moderate reaction conditions, nickel boride (Ni2B)-free trajectory, good-to-excellent yields of the products, relatively short reaction times, satisfactory chemoselectivity, and did not involve the use of toxic organic solvent and also any base or ligand.

Journal of Molecular Structure published new progress about Aromatic amides Role: SPN (Synthetic Preparation), PREP (Preparation). 3959-07-7 belongs to class bromides-buliding-blocks, and the molecular formula is C7H8BrN, Synthetic Route of 3959-07-7.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Shen, Qiuyan; Xu, Tianyi; Zhuang, Gui-lin; Zhuang, Yuan; Sun, Liming; Han, Xiguang; Wang, Xiaojun; Zhan, Wenwen published the artcile< Spatially Separated Photoinduced Charge Carriers for the Enhanced Photocatalysis Over the One-Dimensional Yolk-Shell In2Se3@N-C Nanoreactor>, Name: 4-Bromobenzylamine, the main research area is photoinduced charge carrier indium selenide nitrogen doped carbon nanoreactor; yolk shell nanorod photocatalysis catalyst amine oxidation adsorption; cross dehydrgenative coupling isoquinoline indole.

Charge separation is crucial for applications of semiconductors in photocatalysis, especially in the field of photocatalytic organic transformation involving both the electrons and holes. Herein, the authors have spatially separated the photoinduced charge carriers on a nanoscale by engineering both the composition and morphol. of a semiconductor-based photocatalyst. A yolk-shell nanorod structure (In2Se3@N-C YSR), which is composed of interpenetrated In2Se3 nanosheets as the core and an N-doped C layer as the shell, was fabricated. This yolk-shell structure with confined cavities can provide a high surface area and multiple light reflections. The spatial distribution of the In2Se3 nanosheets and N-doped C layer can provide spatially separated redox-active sites, due to the existence of a controlled transfer pathway from In2Se3 to N-doped C layer for electrons, which can be revealed by photocurrent measurements, time-resolved photoluminescence spectra, and d. functional theory (DFT) calculations Therefore, from the above merits, the obtained In2Se3@N-C YSR has exhibited highly enhanced photocatalytic activity toward photocatalytic organic transformations, including the selective oxidation of amines to imines and the cross-dehydrogenative coupling reaction. DFT calculations also indicated that the effective adsorption of the substrate on In2Se3@N-C also has a good influence on the photocatalytic process of organic transformation.

ACS Catalysis published new progress about Adsorption. 3959-07-7 belongs to class bromides-buliding-blocks, and the molecular formula is C7H8BrN, Name: 4-Bromobenzylamine.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Lu, Changhui; Li, Xiaohong; Chang, Shunqin; Zhang, Yuqi; Xing, Donghui; Wang, Shuo; Lin, Yueping; Jiang, Huanfeng; Huang, Liangbin published the artcile< Thioamide synthesis via copper-catalyzed C-H activation of 1,2,3-thiadiazoles enabled by slow release and capture of thioketenes>, Formula: C7H8BrN, the main research area is thiadiazole amine copper catalyst regioselective carbon hydrogen activation; thioamide preparation.

A Cu-catalyzed thioacylation of amines via a C-H activation/coordinated stabilization protocol to ensure the slow-release of thioketenes, which are captured by various amines to afford thioamides was developed. This method was characterized by its simplicity, efficiency and broad substrate scope in both 1,2,3-thiadiazoles and amines. Its versatility was further illustrated by the late-stage thioamidation of N-containing drugs, peptides, catalysts, and ligands. Mechanism studies demonstrate that the active Cu(I) species was formed via the reduction of Cu(II) during the induction period, and the rate-determining step was the C-H activation of 1,2,3-thiadiazole.

Organic Chemistry Frontiers published new progress about Amidation catalysts (thioamidation). 3959-07-7 belongs to class bromides-buliding-blocks, and the molecular formula is C7H8BrN, Formula: C7H8BrN.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Zhu, Xiaoming; Zhou, Fengru; Yang, Yuan; Deng, Guobo; Liang, Yun published the artcile< Catalyst- and Additive-Free Method for the Synthesis of 2-Substituted Benzothiazoles from Aromatic Amines, Aliphatic Amines, and Elemental Sulfur>, Reference of 3959-07-7, the main research area is benzothiazole green preparation cyclization aromatic amine sulfur; naphthothiazole green preparation cyclization aromatic amine sulfur.

Under catalyst- and additive-free conditions, a novel, convenient, environmentally friendly method was developed for the synthesis of 2-substituted benzothiazoles via the three-component one pot reaction from aromatic amines, aliphatic amines, and elemental sulfur. The reaction achieves double C-S and one C-N bond formations via cleavage of two C-N bonds and multiple C-H bonds. Furthermore, the mechanism research shows that DMSO acts as an oxidant in the cyclization reaction.

ACS Omega published new progress about Aliphatic amines Role: RCT (Reactant), RACT (Reactant or Reagent). 3959-07-7 belongs to class bromides-buliding-blocks, and the molecular formula is C7H8BrN, Reference of 3959-07-7.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Cui, Penglei; Li, Sida; Wang, Xianjin; Li, Ming; Wang, Chun; Wu, Lipeng published the artcile< Visible-Light-Promoted Unsymmetrical Phosphine Synthesis from Benzylamines>, SDS of cas: 3959-07-7, the main research area is photochem deaminative alkylation reaction benzylamine Katritzky salt phenylphosphine; unsym tertiary phosphine preparation electrochem fluorescence.

Herein, by applying visible-light photoredox catalysis, the authors have achieved the catalytic deaminative alkylation of diphenylphosphine and Ph phosphine with benzylamine-derived Katritzky salts at room temperature The use of Eosin Y as photoredox catalyst and visible light can largely promote the reaction. Unsym. tertiary phosphines were successfully synthesized, including phosphines with three different substituents that are otherwise difficult to obtain.

Organic Letters published new progress about Alkylation (photochem. deaminative alkylation reaction). 3959-07-7 belongs to class bromides-buliding-blocks, and the molecular formula is C7H8BrN, SDS of cas: 3959-07-7.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Liao, Xudong; Zhou, Yi; Ai, Chengmei; Ye, Cuijiao; Chen, Guanghui; Yan, Zhaohua; Lin, Sen published the artcile< SO2F2-mediated oxidation of primary and tertiary amines with 30% aqueous H2O2 solution>, Recommanded Product: 4-Bromobenzylamine, the main research area is azoxybenzene green preparation; aniline oxidation catalyst sulfuryl fluoride; aryl nitrile green preparation; amide green preparation; amine oxidation catalyst sulfuryl fluoride; oxide quinoline isoquinoline pyridine green preparation.

A highly efficient and selective oxidation of primary and tertiary amines employing SO2F2/H2O2/base system was described. Anilines were converted to the corresponding azoxybenzenes I [R = H, 4-Me, 3-Cl-4-Me, etc.], while primary benzylamines were transformed into nitriles ArC≡N [Ar = Ph, 4-ClC6H4, 4-MeOC6H4, etc.] and secondary benzylamines were rearranged to amides ArNHC(O)R1 [Ar = Ph; R1 = Me, Et]. For tertiary amine substrates quinolines, isoquinolines and pyridines, their oxidation products were the corresponding N-oxides II [R1 = R2 = Me; R3 = Me, Ph], III [R4 = H, 7-Me, 6-NO2; R5 = 2-Me, 3-Me, 4-Me], IV [R6 = H, 8-Cl, 6-Br] and V [R7 = H, 2,6-di-Me, 4-MeO, 2-Br, 4-oxiran-2-yl]. The reaction conditions were very mild and just involve SO2F2, amines, 30% aqueous H2O2 solution, and inorganic base at room temperature One unique advantage was that this oxidation system was just composed of inexpensive inorganic compounds without the use of any metal and organic compounds

Tetrahedron Letters published new progress about Amines Role: RCT (Reactant), RACT (Reactant or Reagent). 3959-07-7 belongs to class bromides-buliding-blocks, and the molecular formula is C7H8BrN, Recommanded Product: 4-Bromobenzylamine.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Yuan, Ling; Yuan, Gao-Qing published the artcile< Electrosynthesis of 1,3,5-trisubstituted 1,2,4-triazoles from phenylhydrazine, aldehydes and amines under mild conditions>, Safety of 4-Bromobenzylamine, the main research area is trisubstituted triazole preparation electrochem; phenylhydrazine aldehyde amine three component reaction.

A simple and convenient method for the electrosynthesis of 1,3,5-trisubstituted 1,2,4-triazoles with three components of phenylhydrazine, aldehydes and amines has been established. The electrolysis could be smoothly carried out at room temperature without addnl. strong oxidants and catalysts to afford the target product in good yields. This electrochem. route effectively extends synthetic field of 1,2,4-triazole derivatives

Tetrahedron published new progress about Aldehydes Role: RCT (Reactant), RACT (Reactant or Reagent). 3959-07-7 belongs to class bromides-buliding-blocks, and the molecular formula is C7H8BrN, Safety of 4-Bromobenzylamine.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Li, Xia; Ma, Xiaoming; Lang, Xianjun published the artcile< Blue light-powered hydroxynaphthoic acid-titanium dioxide photocatalysis for the selective aerobic oxidation of amines>, Formula: C7H8BrN, the main research area is hydroxynaphthoic acid titanium dioxide photocatalysis selective aerobic oxidation amine; Cooperative photocatalysis; Hydroxynaphthoic acid; Oxidation of amines; Photoredox-active ligand; Surface complexes.

Solar photocatalysis is the key to resolve many environmental challenges but is usually hard to achieve over a metal oxide semiconductor. Therefore, assembling π-conjugated mols. onto semiconductors becomes an efficient approach to solar conversion via ligand-to-metal charge transfer. Here, a rational design of ligands for titanium dioxide (TiO2) is presented to produce robust visible light photocatalysts. Three hydroxynaphthoic acids (HNAs) were selected as ligands by extending an extra benzene ring of salicylic acid (SA) at 3,4 or 4,5 or 5,6 positions. These ligands could regulate the performance of TiO2 in which 2-hydroxy-1-naphthoic acid (2H1NA) endows the best outcome. In detail, blue light-powered cooperative photocatalysis of 2H1NA-TiO2 with 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO, 5 mol%) inaugurates the expeditious formation of imines by oxidation of amines with atm. oxygen (O2). Interestingly, the increase of the O2 pressure from 1 atm to 0.4 MPa promoted the selective oxidation of benzylamine but thereafter declined with a further boost to 0.6 MPa. Notably, an electron transfer between the oxidatively quenched 2H1NA-TiO2 and TEMPO is established, offering a new pathway for environmental applications. This work presents a strategy in designing cutting-edge visible light photocatalysts via altering semiconductors with surface ligands.

Journal of Colloid and Interface Science published new progress about Blue light. 3959-07-7 belongs to class bromides-buliding-blocks, and the molecular formula is C7H8BrN, Formula: C7H8BrN.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Shao, Wenhao; Jiang, Hanjie; Ansari, Ramin; Zimmerman, Paul M.; Kim, Jinsang published the artcile< Heavy atom oriented orbital angular momentum manipulation in metal-free organic phosphors>, Quality Control of 576-83-0, the main research area is metal free organic phosphor orbital angular momentum.

Metal-free purely organic phosphors (POPs) are emerging materials for display technologies, solid-state lighting, and chem. sensors. However, due to limitations in contemporary design strategies, the intrinsic spin-orbit coupling (SOC) efficiency of POPs remains low and their emission lifetime is pinned in the millisecond regime. Here, we present a design concept for POPs where the two main factors that control SOC-the heavy atom effect and orbital angular momentum-are tightly coupled to maximize SOC. This strategy is bolstered by novel natural-transition-orbital-based computational methods to visualize and quantify angular momentum descriptors for mol. design. To demonstrate the effectiveness of this strategy, prototype POPs were created having efficient room-temperature phosphorescence with lifetimes pushed below the millisecond regime, which were enabled by boosted SOC efficiencies beyond 102 cm-1 and achieved record-high efficiencies in POPs. Electronic structure anal. shows how discrete tuning of heavy atom effects and orbital angular momentum is possible within the proposed design strategy, leading to a strong degree of control over the resulting POP properties.

Chemical Science published new progress about Angular momentum, orbital. 576-83-0 belongs to class bromides-buliding-blocks, and the molecular formula is C9H11Br, Quality Control of 576-83-0.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary