Category: 3959-07-07 00:00:00

Wu, Bang; Jiang, Xinyue; Liu, Yang; Li, Qiu-Yan; Zhao, Xinsheng; Wang, Xiao-Jun published the artcile< Vinylene-bridged donor-acceptor type porous organic polymers for enhanced photocatalysis of amine oxidative coupling reactions under visible light>, Safety of 4-Bromobenzylamine, the main research area is amine oxidative coupling photocatalysis porous organic polymer preparation property.

Porous organic polymers (POPs), owing to their abundant porosity, high stability and well-tunable properties, are promising candidates as heterogeneous photocatalysts for organic transformations. Here we report two vinylene-bridged donor-acceptor (D-A) structural POPs (TpTc-POP and TbTc-POP) that are facilely constructed by the electron-rich triarylamine and electron-deficient tricyanomesitylene as key building blocks by the organic base catalyzed Knoevenagel condensation. Both TpTc-POP and TbTc-POP possess hierarchical meso- and micro-pores with a high surface area. Furthermore, the unsubstituted vinylene linkages of D-A moieties in their polymer backbones extend their π-conjugation and render their broad absorption range in the visible-light region. Thus, these DA-POPs exhibited highly effective photocatalytic activities for aerobic oxidative coupling of amines to imines under visible light irradiation This study shows the great potential of conjugated POPs with a D-A structural feature in designing highly efficient and active heterogeneous photocatalytic systems.

RSC Advances published new progress about Adsorption. 3959-07-7 belongs to class bromides-buliding-blocks, and the molecular formula is C7H8BrN, Safety of 4-Bromobenzylamine.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Zhang, Yangmin; Yang, Hanmin; Chi, Quan; Zhang, Zehui published the artcile< Nitrogen-Doped Carbon-Supported Nickel Nanoparticles: A Robust Catalyst to Bridge the Hydrogenation of Nitriles and the Reductive Amination of Carbonyl Compounds for the Synthesis of Primary Amines>, Safety of 4-Bromobenzylamine, the main research area is primary amine preparation; nitrogen doped carbon supported nickel nanoparticle catalyst preparation; nitrile aldehyde hydrogenation reductive amination; amines; hydrogenation; nickel; nitrogen-doped carbon; reductive amination.

An efficient method was developed for the synthesis of primary amines either from the hydrogenation of nitriles or reductive amination of carbonyl compounds The reactions were catalyzed by nitrogen-doped mesoporous carbon (MC)-supported nickel nanoparticles (abbreviated as MC/Ni). The MC/Ni catalyst demonstrated high catalytic activity for the hydrogenation of nitriles into primary amines in high yields (81.9-99 %) under mild reaction conditions (80° and 2.5 bar H2). The MC/Ni catalyst also promoted the reductive amination of carbonyl compounds for the synthesis of primary amines at 80° and 1 bar H2. The hydrogenation of nitriles and the reductive amination proceeded through the same intermediates for the generation of the primary amines. To the best of knowledge, no other heterogeneous non-noble metal catalysts have been reported for the synthesis of primary amines under mild conditions, both from the hydrogenation of nitriles and reductive amination.

ChemSusChem published new progress about Aryl 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

Lian, Chengxi; Zhang, Chaoying; Zhao, Yingchun; Wang, Hui; Li, Xiufen; Huang, Longjiang published the artcile< Oxidative coupling of primary amines to imines catalyzed by CoCl2·6H2O>, COA of Formula: C7H8BrN, the main research area is imine preparation green chem; primary amine oxidative coupling cobalt catalyst; benzimidazole preparation green chem; phenylenediamine benzylamine oxidative coupling cobalt catalyst.

A high-performance, readily available and eco-friendly cobalt catalyst has been suggested for the first time for the additive-free oxidative coupling of primary amines RCHR1NH2 (R = Ph, 4-chlorophenyl, thiophen-2-yl, etc.; R1 = H, Me) to imines RC(R1)=NCHRR1. Different substituted benzylamine and heteroaryl methanamine compounds could be transformed into their corresponding imines in good to excellent yields over this catalyst. Meanwhile, it has been demonstrated that this catalyst can also afford the oxidative coupling of various benzylamines R2CH2NH2 (R2 = Ph, 3-fluorophenyl, thien-2-yl, etc.) with o-phenylenediamine to produce benzimidazole derivatives I in medium to good yields.

Applied Organometallic Chemistry published new progress about Aralkyl amines Role: RCT (Reactant), RACT (Reactant or Reagent). 3959-07-7 belongs to class bromides-buliding-blocks, and the molecular formula is C7H8BrN, COA of Formula: C7H8BrN.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Wang, Guanchao; Zhang, Ting; Yu, Weiwei; Si, Rui; Liu, Yuefeng; Zhao, Zhongkui published the artcile< Modulating Location of Single Copper Atoms in Polymeric Carbon Nitride for Enhanced Photoredox Catalysis>, Application of C7H8BrN, the main research area is copper atom polymeric carbon nitride photocatalyst photoredox benzylamine.

Introducing single-atom metals (SAMs) is a promising strategy to improve photocatalysis of polymeric carbon nitride (PCN), but current studies are limited to loading SAMs on the surface of PCN to serve as active sites. Herein, we report an intercalation-structured hollow carbon nitride sphere composed of carbon nitride nanosheets (HCNS) with atomically dispersed Cu1N3 moieties embedded within nanosheets (Cu1@HCNS) prepared by a facile mol. assembly approach. It exhibits far superior photoredox catalysis to the pristine HCNS and the modified HCNS with Cu1N3 moieties anchored on the surface of nanosheets (Cu1/HCNS) for solar hydrogen production (3261μmol g-1 h-1 rate with 7.1% of apparent quantum yield), in which the embedded single-atom Cu acts as a modifier to effectively modulate the electron structure and remarkably promote interfacial charge transfer of PCN rather than act as active sites to facilitate surface reaction. It can be extended to the nonoxygen coupling of benzylamine and derivants to corresponding imines, and the unexpectedly high reaction rate is achieved. The promoting effect strongly depends on the location of single-atom Cu in the PCN, and the coordination method is a very effective strategy to introduce single-atom metals in terms of the improvement in photocatalysis of PCN owing to the intensified metal-PCN interaction. This work opens up a window for further improving the photocatalytic efficiency of carbon nitride in terms of solar fuel production and clean organic synthesis.

ACS Catalysis published new progress about Imines Role: FMU (Formation, Unclassified), NUU (Other Use, Unclassified), FORM (Formation, Nonpreparative), USES (Uses). 3959-07-7 belongs to class bromides-buliding-blocks, and the molecular formula is C7H8BrN, Application of C7H8BrN.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Kadu, Vikas D.; Khadul, Siddheshwar P.; Kothe, Gokul J.; Mali, Ganesh A. published the artcile< Rapid One-Pot Aerobic Oxidative N-α-C(sp3)-H Functionalization of Arylmethylamines to Access Tetrasubstituted Imidazoles>, SDS of cas: 3959-07-7, the main research area is tetrasubstituted Imidazole preparation green chem; arylmethylamine one pot aerobic oxidative functionalization copper.

A simple copper catalyzed “”one-pot”” process has been developed for synthesis of polysubstituted imidazoles via direct oxidative N-α-C(sp3)-H functionalization of arylmethylamines. The readily available arylmethylamines as substrates have afforded tetrasubstituted imidazoles products up to 94% yields under mild and environmentally benign conditions. The explored substrates scope with 1,2-diketones and α-hydroxyketones have shown great utility for synthesis of tetrasubstituted imidazoles.

Asian Journal of Organic Chemistry published new progress about Aralkyl amines Role: RCT (Reactant), RACT (Reactant or Reagent). 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

Li, Yun-Fei; Zhang, Duo; Wang, Hui-Juan; Li, Fa-Bao; Sun, Liang; Liu, Li; Liu, Chao-Yang; Asiri, Abdullah M.; Alamry, Khalid A. published the artcile< Metal-Free Synthesis of N-Alkyl-2,5-Unsubstituted/Monosubstituted Fulleropyrrolidines: Reaction of [60]Fullerene with Paraformaldehyde and Amines>, Related Products of 3959-07-7, the main research area is alkyl fulleropyrrolidine thermal synthesis fullerene paraformaldehyde amines.

A series of scarce N-alkyl-2,5-unsubstituted/monosubstituted fulleropyrrolidines were synthesized in moderate to excellent yields by the simple one-step thermal reaction of [60]fullerene with primary/secondary amines in the presence of paraformaldehyde without the addition of valuable metal salts. Intriguingly, the reaction with primary amines unexpectedly afforded N-alkyl-2,5-unsubstituted fulleropyrrolidines instead of the anticipated 2,5-monosubstituted fulleropyrrolidines. A plausible reaction pathway is proposed to elucidate the above-mentioned reaction process based on the exptl. results.

Journal of Organic Chemistry published new progress about Fullerenes Role: SPN (Synthetic Preparation), PREP (Preparation) (pyrrolidines). 3959-07-7 belongs to class bromides-buliding-blocks, and the molecular formula is C7H8BrN, Related Products of 3959-07-7.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Hao, Huimin; Shi, Ji-Long; Xu, Hui; Li, Xia; Lang, Xianjun published the artcile< N-hydroxyphthalimide-TiO2 complex visible light photocatalysis>, COA of Formula: C7H8BrN, the main research area is hydroxyphthalimide titania visible light photocatalysis.

TiO2 is the most established semiconductor photocatalyst. The prominence of TiO2 is becoming increasingly obvious because its interfacial redox reactions have implication on a wide range processes such as energy conversion and environmental remediation. Herein, we exploited the surface complex created by the interaction between organic mols. with binding sites and accommodating surface of TiO2 for visible light-driven selective aerobic oxidation reactions. A novel surface complex formed between N-hydroxyphthalimide (NHPI) and TiO2 was discovered. The NHPI-TiO2 complex turned out to be an outstanding visible light photocatalyst and was successfully used in the selective oxidation of amines into imines with atm. O2 under blue LED irradiation The stability of the NHPI-TiO2 complex was preserved by 3 mol.% of (2,2,6,6-tetramethylpiperidin-1-yl)oxyl (TEMPO) acting as a cooperative catalyst. Moreover, selectivities for the imine products were also promoted by TEMPO. Superoxide anion radical (O·2-) were evidenced to be the primary reactive oxygen species (ROS) to execute the oxidative conversions. This work suggests that TiO2 surface complexes can be robust photocatalysts for visible light-driven selective aerobic reactions, provided that an appropriate cooperative redox catalyst exists to channel the photocatalytic electron transfer.

Applied Catalysis, B: Environmental published new progress about Attenuated-total-reflectance IR spectra. 3959-07-7 belongs to class bromides-buliding-blocks, and the molecular formula is C7H8BrN, COA of Formula: C7H8BrN.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Bai, Peng; Tong, Xinli; Wan, Jun; Gao, Yiqi; Xue, Song published the artcile< Flower-like Bi2O2CO3-mediated selective oxidative coupling processes of amines under visible light irradiation>, Recommanded Product: 4-Bromobenzylamine, the main research area is bismuth oxycarbonate amine oxidation photocatalyst.

The photocatalytic selective transformation of amines is a green and cost-effective technol. to obtain value-added products in chem. industry. In this work, a series of bismuth-based photocatalysts including Bi2MoO6, Bi2WO6, Bi5O7Cl, Bi5O7Br, Bi5O7I, BiPO4, BiVO4, Bi2O3 and various morphol. Bi2O2CO3 (flower-like, sponge-like, plate-like and spherical) were synthesized and employed in the aerobic oxidative coupling of benzylamine. It is found that flower-like Bi2O2CO3 exhibited the highest photocatalytic activity, in which a 100% conversion of benzylamine with 99.0% selectivity of N-benzylidenebenzylamine was obtained at room temperature Moreover, the photocatalytic oxidative coupling processes of various aromatic and aliphatic amines were further investigated, and excellent yields and selectivities of corresponding products are attained. Then, based on characterization results (XRD, SEM, BET and XPS, etc.) of catalyst, high photocatalytic activity of flower-like Bi2O2CO3 is attributed to thin nanopetals, low band gap, the morphol. and large sp. surface area. Finally, a possible reaction mechanism is proposed for the photocatalytic oxidative coupling of benzyl amine.

Journal of Catalysis published new progress about Nanoflowers. 3959-07-7 belongs to class bromides-buliding-blocks, and the molecular formula is C7H8BrN, Recommanded Product: 4-Bromobenzylamine.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Gong, Weitao; Deng, Xiaorong; Dong, Kaixun; Liu, Lu; Ning, Guiling published the artcile< A boranil-based conjugated microporous polymer for efficient visible-light-driven heterogeneous photocatalysis>, Recommanded Product: 4-Bromobenzylamine, the main research area is boranil based conjugated polymer visible light driven heterogeneous photocatalysis.

The incorporation of pure organic dyes into the backbone of conjugated microporous polymers (CMPs) opens a new avenue for facile construction of metal-free heterogeneous photocatalysts with tailor-made properties. Herein, we presented the design and synthesis of a new CMP based on a boranil dye which was exploited as an efficient heterogeneous photocatalyst. It exhibited superior photocatalytic performance toward aerobic oxidation of amines and sulfides compared with that of the boranil-free counterpart and featured wide visible-light absorption, a narrow optical bandgap, and more planar π-conjugation due to boron complexation. The present study establishes boranil dyes as efficient building blocks for fabricating new photocatalysts.

Polymer Chemistry published new progress about Adsorption. 3959-07-7 belongs to class bromides-buliding-blocks, and the molecular formula is C7H8BrN, Recommanded Product: 4-Bromobenzylamine.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Xiang, Ming; Xu, Zhihua; Wu, Qianhui; Wang, Yanchen; Yan, Zhaoxiong published the artcile< Selective electrooxidation of primary amines over a Ni/Co metal-organic framework derived electrode enabling effective hydrogen production in the membrane-free electrolyzer>, Reference of 3959-07-7, the main research area is metal organic framework hydrogen production electrooxidation.

The overall water electrolysis always needs an ion-conductive membrane to sep. the generated hydrogen and oxygen from the corresponding cathode and anode, which improves the manufacturing cost of the electrolyzer. The substitution of thermodynamically more favorable organic oxidation reactions for oxygen evolution reaction avoids the requirement of the membrane, accompanied by the generation of value-added products at the anode. Herein, with the help of the bimetallic Ni/Co metal-organic framework derivative (t-Ni/Co MOF) as the anodic electrocatalyst, we develop an oxidant-free condition for the selective conversion of primary amines into nitriles. Specifically, aromatic and aliphatic nitriles can be conveniently obtained with good yields and faradaic efficiencies over the t-Ni/Co MOF electrode when coupling with the hydrogen evolution reaction. Notably, benzylamine can be oxidized into benzonitrile even at an ultralow potential of 1.30 V vs. reversible hydrogen electrode (RHE) over the t-Ni/Co MOF electrode, which is lower than that of the reported Ni-based monometallic electrocatalysts for benzylamine elecrooxidn. Control experiments suggest that the reversible electron transfer process of Co2+ ↔ Co3+ at a relatively low potential contributes to the formation of higher valence Ni species, which accelerates the kinetics of the primary amine oxidation, simultaneously reducing power consumption for hydrogen production

Journal of Power Sources published new progress about Cyclic voltammetry. 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