Category: 13788-92-6

Liu, Wei; Deng, Wei; Sun, Saisai; Yu, Chunyan; Su, Xubo; Wu, Aliang; Yuan, Youlang; Ma, Zhonglin; Li, Ke; Yang, Hongfang; Peng, Xuanjia; Dietrich, Justin published the artcile< A Strategy for the Synthesis of Sulfonamides on DNA>, HPLC of Formula: 13788-92-6, the main research area is sulfonamide DNA preparation sulfinic acid sulfinate amine ligation.

An efficient method is reported to synthesize sulfonamides on DNA from sulfinic acids or sodium sulfinates and amines in the presence of iodine under mild conditions. This method demonstrates a major expansion of scope of sulfonamide formation on DNA through the utilization of a novel sodium carbonate-sodium sulfinate bifunctional reagent class.

Organic Letters published new progress about Amines Role: RCT (Reactant), SPN (Synthetic Preparation), RACT (Reactant or Reagent), PREP (Preparation) (DNA-conjugated). 13788-92-6 belongs to class pyrazoles-derivatives, and the molecular formula is C9H7BrN2, HPLC of Formula: 13788-92-6.

Referemce:
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics

Wang, Huai-Wei; Wu, Jia-Xue; Qiao, Yu-Han; Li, Yong-Fei; Li, Da-Cheng; Dou, Jian-Min; Yao, Qing-Xia; Lu, Yi published the artcile< RhIII-Catalyzed Direct Heteroarylation of C(sp3)-H and C(sp2)-H Bonds in Heterocycles with N-Heteroaromatic Boronates>, Recommanded Product: 1-(4-Bromophenyl)-1H-pyrazole, the main research area is methyl quinoline heteroaryl boronate rhodium catalyst heteroarylation; heteroaryl methyl quinoline preparation; phenyl pyridine heteroaryl boronate rhodium catalyst heteroarylation; heteroaromatic phenyl pyridine preparation.

A RhIII-catalyzed heteroarylation of C(sp3)-H and C(sp2)-H bonds in heterocycles with organoboron reagents were disclosed. This protocol displayed high efficiency and excellent functional group tolerance. A range of heterocyclic boronates with strong coordinating atoms, including pyridine, pyrimidine, pyrazole, thiophene and furan derivatives, extensively served as the coupling reagents. The direct heteroarylation method could supply potential application in terms of the synthesis of drug mols. with multiple heterocycles.

Organic Letters published new progress about Anilines Role: RCT (Reactant), RACT (Reactant or Reagent). 13788-92-6 belongs to class pyrazoles-derivatives, and the molecular formula is C9H7BrN2, Recommanded Product: 1-(4-Bromophenyl)-1H-pyrazole.

Referemce:
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics

Tan, Guangying; Das, Mowpriya; Maisuls, Ivan; Strassert, Cristian A.; Glorius, Frank published the artcile< Rhodium-Catalyzed Dealkenylative Arylation of Alkenes with Arylboronic Compounds>, Synthetic Route of 13788-92-6, the main research area is biaryl preparation; alkene arylboronic compound dealkenylative arylation rhodium catalyst; C−C bond cleavage; alkenes; dealkenylation arylation; organic fluorescent molecules; rhodium catalysis.

Herein, the first example of rhodium-catalyzed dealkenylative arylation of alkenes with arylboronic compounds, thereby providing an unconventional access to biaryls with excellent chemoselectivity was diclosed. In this method, C(aryl)-C(alkenyl) and C(alkenyl)-C(alkenyl) bonds in various alkenes and 1,3-dienes could be cleaved via a hydrometalation and followed by β-carbon elimination pathway for Suzuki-Miyaura reactions. Furthermore, a series of novel organic fluorescent mols. with excellent photophys. properties were efficiently constructed with this protocol.

Angewandte Chemie, International Edition published new progress about Alkenes Role: RCT (Reactant), SPN (Synthetic Preparation), RACT (Reactant or Reagent), PREP (Preparation). 13788-92-6 belongs to class pyrazoles-derivatives, and the molecular formula is C9H7BrN2, Synthetic Route of 13788-92-6.

Referemce:
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics

Wei, Wen; Yu, Hao; Zangarelli, Agnese; Ackermann, Lutz published the artcile< Deaminative meta-C-H alkylation by ruthenium(II) catalysis>, COA of Formula: C9H7BrN2, the main research area is alkyl arene preparation chemoselective regioselective; heteroarene Katritzky pyridinium salt deaminative alkylation ruthenium catalyst.

A ruthenium-catalyzed meta-C-H deaminative alkylation with easily accessible amino acid-derived Katritzky pyridinium salts I (R = H, CO2Me, N-[(2S)-1-methoxy-1-oxopropan-2-yl]carbamoyl; R1 = CO2CH2CH3, CH2C6H5, 1H-indol-3-ylmethyl, etc.) has been described. Likewise, remote C-H benzylations were accomplished with high levels of chemoselectivity and remarkable functional group tolerance. The meta-C-H activation approach combined with the deaminative strategy represents a rare example of selectively converting C(sp3)-N bonds into C(sp3)-C(sp2) bonds.

Chemical Science published new progress about Alkylation catalysts, regioselective (deaminative, chemoselective). 13788-92-6 belongs to class pyrazoles-derivatives, and the molecular formula is C9H7BrN2, COA of Formula: C9H7BrN2.

Referemce:
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics

Dong, Xinrui; Jiang, Wenhua; Hua, Dexiang; Wang, Xiaohui; Xu, Liang; Wu, Xiaoxing published the artcile< Radical-mediated vicinal addition of alkoxysulfonyl/fluorosulfonyl and trifluoromethyl groups to aryl alkyl alkynes>, Safety of 1-(4-Bromophenyl)-1H-pyrazole, the main research area is trifluoromethylalkenylsulfonate ester sulfonyl fluoride preparation diastereoselective; aryl alkyl alkyne alkoxy fluorosulfonyl trifluoromethylation radical mediator.

The addition of sulfonyl radicals to alkenes and alkynes is a valuable method for constructing useful highly functionalized sulfonyl compounds The underexplored alkoxy- and fluorosulfonyl radicals are easily accessed by CF3 radical addition to readily available allylsulfonic acid derivatives and then β-fragmentation. These substituted sulfonyl radicals add to aryl alkyl alkynes to give vinyl radicals that are trapped by trifluoromethyl transfer to provide tetra-substituted alkenes bearing the privileged alkoxy- or fluorosulfonyl group on one carbon and a trifluoromethyl group on the other. This process exhibits broad functional group compatibility and allows for the late-stage functionalization of drug mols., demonstrating its potential in drug discovery and chem. biol. And alkyl allylsulfonates/allylsulfonyl fluoride.

Chemical Science published new progress about Alkynes, aryl Role: RCT (Reactant), SPN (Synthetic Preparation), RACT (Reactant or Reagent), PREP (Preparation) (alkyl). 13788-92-6 belongs to class pyrazoles-derivatives, and the molecular formula is C9H7BrN2, Safety of 1-(4-Bromophenyl)-1H-pyrazole.

Referemce:
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics

Song, Bao; Cao, Ningtao; Zhang, Jie; Xie, Jianwei published the artcile< Copper pyrithione (CuPT)-catalyzed/mediated amination and thioarylation of (hetero)aryl halides: A competition>, Electric Literature of 13788-92-6, the main research area is arylhalide pyrazole copper pyrithione catalyst amination coupling reaction; arylpyrazole preparation; copper pyrithione aryl halide thioarylation coupling reaction; aryl thiopyridineoxide preparation.

A facile method for the synthesis of N-arylheterocycles and di(hetero)aryl sulfides under mild condition was described. In these transformations, copper pyrithione (CuPT) was used as the copper catalyst for CN coupling, while served as catalyst and coupled partner for CS coupling with high yields and broad substrate tolerance. The S-arylation process was also utilized for the construction of valuable bioactive 2-sulfonylpyridine 1-oxide derivatives

Molecular Catalysis published new progress about Amination. 13788-92-6 belongs to class pyrazoles-derivatives, and the molecular formula is C9H7BrN2, Electric Literature of 13788-92-6.

Referemce:
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics

Vorobyeva, Evgeniya; Gerken, Viktoria C.; Mitchell, Sharon; Sabadell-Rendon, Albert; Hauert, Roland; Xi, Shibo; Borgna, Armando; Klose, Daniel; Collins, Sean M.; Midgley, Paul A.; Kepaptsoglou, Demie M.; Ramasse, Quentin M.; Ruiz-Ferrando, Andrea; Fako, Edvin; Ortuno, Manuel A.; Lopez, Nuria; Carreira, Erick M.; Perez-Ramirez, Javier published the artcile< Activation of Copper Species on Carbon Nitride for Enhanced Activity in the Arylation of Amines>, Recommanded Product: 1-(4-Bromophenyl)-1H-pyrazole, the main research area is graphitic carbon nitride copper activation amine arylation.

We report the promoting effect of graphitic carbon nitride in Cu-catalyzed N-arylation. The abundance of pyridinic coordination sites in this host permits the adsorption of copper iodide from the reaction medium. The key to achieving high activity is to confine active Cu species on the surface, which is accomplished by introducing atomically dispersed metal dopants to block diffusion into the bulk of the carrier. The alternative route of incorporating metal during the synthesis of graphitic carbon nitride is ineffective as Cu is thermodynamically more stable in inactive subsurface positions. A combination of X-ray absorption, X-ray photoelectron, and ESR spectroscopy, d. functional theory, and kinetic Monte Carlo simulations is employed to determine the location and associated geometry as well as the electronic structure of metal centers. N-Arylation activity correlates to the surface coverage by copper, which varies during the reaction due to an interplay between site formation via adsorption from the reaction medium and deactivation by diffusion into the bulk of the material, and is highest when an Fe dopant is used to hinder such movement through the lattice.

ACS Catalysis published new progress about Adsorption (of CuI). 13788-92-6 belongs to class pyrazoles-derivatives, and the molecular formula is C9H7BrN2, Recommanded Product: 1-(4-Bromophenyl)-1H-pyrazole.

Referemce:
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics

Zhang, Dong; Gao, Di; Cai, Jinlin; Wu, Xiaoyu; Qin, Hong; Qiao, Kai; Liu, Chengkou; Fang, Zheng; Guo, Kai published the artcile< The ruthenium-catalyzed meta-selective C-H nitration of various azole ring-substituted arenes>, Computed Properties of 13788-92-6, the main research area is ruthenium catalyst meta selective nitration azole arene green chem.

The efficient ruthenium-catalyzed meta-selective CAr-H nitration of azole ring substituted arenes has been developed. In this work, Ru3(CO)12 was used as the catalyst, AgNO2 as the nitro source, HPcy3+·BF4- as the ligand, pivalic acid as the additive, and DCE as the solvent, and a wide spectrum of arenes bearing thiazole, pyrazolyl or removable oxazoline directing groups were tolerated in this meta-selective CAr-H nitration, affording the nitrated products in moderate to good yields. Moreover, this study reveals a gentler and environmentally friendly way to access meta-nitration arenes compared to the traditional process.

Organic & Biomolecular Chemistry published new progress about Azoles Role: RCT (Reactant), SPN (Synthetic Preparation), RACT (Reactant or Reagent), PREP (Preparation). 13788-92-6 belongs to class pyrazoles-derivatives, and the molecular formula is C9H7BrN2, Computed Properties of 13788-92-6.

Referemce:
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics

Garcia da Silva, Artur Christian; Rodrigues, Bruna dos Santos; Andrade, Wanessa Machado; Marques dos Santos, Thais Rosa; de Carvalho, Flavio Silva; Sanz, German; Vaz, Boniek G.; Liao, Luciano M.; Menegatti, Ricardo; Valadares, Marize Campos published the artcile< Antiangiogenic and antitumoral activity of LQFM126 prototype against B16F10 melanoma cells>, Computed Properties of 13788-92-6, the main research area is Nutlin analog antiangiogenic antitumoral agent melanoma cell; Antitumor drugs; Apoptosis; LQFM126; Melanoma; Molecular simplification; Nutlins.

Inhibition of mouse double minute 2 homolog (MDM2)-p53 interaction and reactivation of p53 signaling have been explored as effective anticancer therapeutic strategy. The potent and specific antitumor activity shown by Nutlins, first class of MDM2-p53 inhibitors discovered, has made these compounds potential antitumor candidates. To this end, we synthesized Nutlin-1 and Nutlin-2 analogs through mol. simplification and selected the compound with the most efficient antitumoral activity. Cytotoxicity of Nutlin-2 analog LQFM126 on B16F10 melanoma cells induced intense cytoplasmic vacuolization, reduction of cell size, chromatin condensation, cytoplasmic degeneration and nuclear fragmentation. LQFM126 antiproliferative effects mediated cell cycle retention in G0/G1 phase and increased the levels of cell cycle regulatory proteins p21 and p27. This Nutlin analog increased mitochondrial membrane potential, activated caspase-8, -9 and -3/7 and reduced VEGF levels in B16F10 cells. Therefore, LQFM126 promoted alterations suggestive of apoptosis, G0/G1 cell cycle arrest and suppression of angiogenesis through modulation of VEGF expression in B16F10 cells. Addnl., LQFM126 was classified as UN GHS category 4 (LD50 > 300-2000 mg/kg), suggesting it has low acute systemic toxicity. LQFM126 can be a promising prototype for anticancer therapy.

Chemico-Biological Interactions published new progress about Angiogenesis. 13788-92-6 belongs to class pyrazoles-derivatives, and the molecular formula is C9H7BrN2, Computed Properties of 13788-92-6.

Referemce:
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics

Huang, He; Strater, Zack M.; Rauch, Michael; Shee, James; Sisto, Thomas J.; Nuckolls, Colin; Lambert, Tristan H. published the artcile< Electrophotocatalysis with a trisaminocyclopropenium radical dication>, Computed Properties of 13788-92-6, the main research area is radical dication trisaminocyclopropenium photoelectrochem catalyst; C−H functionalization; Electrophotocatalysis; oxidation; radical dication; trisaminocyclopropenium ion.

Visible-light photocatalysis and electrocatalysis are two powerful strategies for the promotion of chem. reactions. Here, these two modalities are combined in an electrophotocatalytic oxidation platform. This chem. employs a trisaminocyclopropenium (TAC) ion catalyst, which is electrochem. oxidized to form a cyclopropenium radical dication intermediate. The radical dication undergoes photoexcitation with visible light to produce an excited-state species with oxidizing power (3.33 V vs. SCE) sufficient to oxidize benzene and halogenated benzenes via single-electron transfer (SET), resulting in C-H/N-H coupling with azoles. A rationale for the strongly oxidizing behavior of the photoexcited species is provided, while the stability of the catalyst is rationalized by a particular conformation of the cis-2,6-dimethylpiperidine moieties.

Angewandte Chemie, International Edition published new progress about C-H bond activation. 13788-92-6 belongs to class pyrazoles-derivatives, and the molecular formula is C9H7BrN2, Computed Properties of 13788-92-6.

Referemce:
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics