Category: bromides-buliding-blocks

Chen, Tiffany Q.; Pedersen, P. Scott; Dow, Nathan W.; Fayad, Remi; Hauke, Cory E.; Rosko, Michael C.; Danilov, Evgeny O.; Blakemore, David C.; Dechert-Schmitt, Anne-Marie; Knauber, Thomas; Castellano, Felix N.; MacMillan, David W. C. published the artcile< Unified Approach to Decarboxylative Halogenation of (Hetero)aryl Carboxylic Acids>, HPLC of Formula: 401-78-5, the main research area is hetero aryl halide preparation photochem; aryl hetero carboxylic acid decarboxylative halogenation copper catalyst.

A general catalytic method for direct decarboxylative halogenation of (hetero)aryl carboxylic acids RC(O)OH (R = 4-sulfamoylphenyl, 5-methylpyridin-2-yl, isoquinolin-1-yl, etc.) via ligand-to-metal charge transfer was reported. This strategy accommodates an exceptionally broad scope of substrates. An aryl radical intermediate is leveraged toward divergent functionalization pathways: (1) atom transfer to access bromo- or iodo(hetero)arenes or (2) radical capture by copper and subsequent reductive elimination to generate chloro- or fluoro(hetero)arenes. The proposed ligand-to-metal charge transfer mechanism is supported through an array of spectroscopic studies.

Journal of the American Chemical Society published new progress about Aromatic carboxylic acids Role: RCT (Reactant), RACT (Reactant or Reagent). 401-78-5 belongs to class bromides-buliding-blocks, and the molecular formula is C7H4BrF3, HPLC of Formula: 401-78-5.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Rajput, Santosh; Gardner, Christopher R.; Failes, Timothy W.; Arndt, Greg M.; Black, David StC.; Kumar, Naresh published the artcile< Synthesis and anticancer evaluation of 3-substituted quinolin-4-ones and 2,3-dihydroquinolin-4-ones>, Quality Control of 14062-30-7, the main research area is antitumor quinolinone dihydroquinolinone preparation; Anticancer; Dihydroquinolin-4-one; Quinolin-4-one.

A series of 3-aryl-5,7-dimethoxyquinolin-4-ones I [R1 = Ph, 4-BrC6H4, 4-MeC6H4, etc.] and 3-aryl-5,7-dimethoxy-2,3-dihydroquinolin-4-ones II [ R2 = Ph, 4-BrC6H4, 4-MeC6H4, etc.] were synthesized in good yields. Demethylation under a range of conditions afforded the corresponding 5-hydroxy and 5,7-dihydroxy derivatives Biol. evaluation against a range of cancer cells lines showed that the quinolin-4-one scaffold was more cytotoxic than the reduced 2,3-dihydroquinolin-4-one scaffold. The most active monohydroxy compound demonstrated 85.9-99% reduction in cell viability against the cell lines tested.

Bioorganic & Medicinal Chemistry published new progress about Antitumor agents. 14062-30-7 belongs to class bromides-buliding-blocks, and the molecular formula is C10H11BrO2, Quality Control of 14062-30-7.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Wang, Feijun; Zhang, Yong Jian; Yang, Guoqiang; Zhang, Wanbin published the artcile< Highly enantioselective Pd(II)-catalyzed Wacker-type cyclization of 2-allylphenols by use of bisoxazoline ligands with axis-unfixed biphenyl backbone>, Formula: C9H9BrO3, the main research area is oxazoline biphenyl ligand preparation catalyst asym Wacker cyclization; allylphenol asym Wacker cyclization oxazolinylbiphenyl palladium catalyst; benzofuran dihydro asym synthesis.

A series of axis-unfixed bisoxazoline ligands with different steric and electronic properties was synthesized. Due to the different steric interactions, the ligands afforded only one of the two possible diastereomeric Pd(II)-complexes upon metal coordination. The Pd(II) complex of (S,aS)-2,2′-dioxazolin-2-ylbiphenyl I showed excellent catalytic activities and enantioselectivities in Wacker-type cyclization of allylphenols with ≤98% ee.

Tetrahedron Letters published new progress about Allylic compounds Role: RCT (Reactant), RACT (Reactant or Reagent). 17100-65-1 belongs to class bromides-buliding-blocks, and the molecular formula is C9H9BrO3, Formula: C9H9BrO3.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Zhang, Kaiheng; Sheng, Xiang; Deiana, Luca; Svensson Grape, Erik; Ken Inge, A.; Himo, Fahmi; Cordova, Armando published the artcile< Solvent Dependency in Stereoselective δ-Lactam Formation of Chiral α-Fluoromalonate Derivatives: Stereodivergent Synthesis of Heterocycles with Fluorine Containing Stereocenters Adjacent to Tertiary Stereocenters>, SDS of cas: 3893-18-3, the main research area is bicyclic lactam stereoselective preparation.

The discovery and investigation of solvent dependency in stereoselective intramol. amidation of chiral 5-aminofunctionalized-2-fluoromalonate ester derivatives, which gave access to highly functionalized δ-lactams with a quaternary fluorine-containing stereocenter was disclosed. Exptl. work together with d. functional theory calculations led to understanding of how to direct and switch the stereochem. outcome of the stereoselective δ-lactam formation. The merging of this solvent-dependent stereoselective switch with asym. catalysis and cascade reactions gave access to an unprecedented strategy for stereodivergent synthesis of all possible stereoisomers of fluorine-containing stereocenters adjacent to tertiary stereocenters of a wide range of heterocyclic compounds with 95->99% ee in one-pot. It was also useful for application in total synthesis of fluorine-containing pharmaceuticals.

Advanced Synthesis & Catalysis published new progress about Amidation (intramol.). 3893-18-3 belongs to class bromides-buliding-blocks, and the molecular formula is C9H7BrO, SDS of cas: 3893-18-3.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Chacon-Huete, Franklin; Lasso, Juan David; Szavay, Paul; Covone, Jason; Forgione, Pat published the artcile< Synthesis of 2,5-diaryl nonsymmetric furans C6-platform chemicals via catalytic conversion of biomass and the formal synthesis of dantrolene>, Application In Synthesis of 2725-82-8, the main research area is diarylfuran preparation biomass furancarboxylic acid decarboxylation arylation aryl bromide.

Biomass-derived commodity chem. 5-hydroxymethyl furfural is an underutilized C6-platform chem. derived from cellulose that is ideal to prepare next-generation value-added products. We have developed an efficient synthetic strategy to access 2,5-diaryl nonsym. furans from 5-hydroxymethyl furfural utilizing decarboxylative cross-couplings. A key finding was that the presence of the hydroxymethyl handle enhances the yields of the palladium-catalyzed decarboxylative cross-coupling reaction. The method provides access to a broad-range nonsym. 2,5-diaryl furans where each arene can be systematically introduced as required. Addnl., this green synthetic strategy was employed for a formal synthesis of the muscle relaxant Dantrolene in excellent yields.

Journal of Organic Chemistry published new progress about Aryl bromides Role: RCT (Reactant), RACT (Reactant or Reagent). 2725-82-8 belongs to class bromides-buliding-blocks, and the molecular formula is C8H9Br, Application In Synthesis of 2725-82-8.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Yang, Zongfan; Hao, Wenjing; Su, Xi; Zhang, Ting; Chen, Weihua; Zhang, Guang; Chen, Long published the artcile< Metallosalphen-Based 2D Covalent Organic Frameworks with an Unprecedented tju Topology via K-Shaped Two-in-One Monomers>, Reference of 3480-11-3, the main research area is preparation transition metal salphen covalent organic framework topol condensation; transition metal salphen COF photocatalytic bromination methyl phenyl ether.

Increasing research interest was raised in two-dimensional covalent organic frameworks (2-dimensional COFs) probably due to their intriguing structural features and versatile functions. However, due to the relatively limited configuration of precursors, the documented 2-dimensional COFs to date were limited to only nine topologies which greatly restricts their development. Herein, the authors newly designed and synthesized three K-shaped two-in-one building units (Ni-Salphen, Cu-Salphen, and Zn-Salphen), which not only feature a special configuration distinguished from the reported monomers but also integrate metallosalphen functional moieties. Self-polycondensation of these K-shaped monomers facilely afforded three new metallosalphen-based COFs (Ni-Salphen-COF, Cu-Salphen-COF, and Zn-Salphen-COF) with an unprecedented tju topol. (tju = Tianjin University) that does not exist in the database of ToposPro. Regarding to the densely and uniformly distributed metallosalphens in the skeletons, the photocatalytic bromination performance of the three COFs were further investigated. Among them, Ni-Salphen-COF exhibited the highest performance on both conversion efficiency (>99%) and selectivity (>90%).

Chemistry of Materials published new progress about Alkyl aryl ethers, aryl Me Role: RCT (Reactant), RACT (Reactant or Reagent). 3480-11-3 belongs to class bromides-buliding-blocks, and the molecular formula is C8H5BrS2, Reference of 3480-11-3.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Shelp, Russell A.; Ciro, Anthony; Pu, Youge; Merchant, Rohan R.; Hughes, Jonathan M. E.; Walsh, Patrick J. published the artcile< Strain-release 2-azaallyl anion addition/borylation of [1.1.1]propellane: synthesis and functionalization of benzylamine bicyclo[1.1.1]pentyl boronates>, Safety of 4-Bromobenzylamine, the main research area is bicyclopentane diarylmethanamine preparation; benzylamine bicyclopentyl boronate preparation arylbromide Suzuki coupling palladium catalyst; benzyl ketimine propellane pinacol boronate borylation three component.

A three-component reaction between N-benzyl ketimines (C6H5)2C=NCH2Ar (Ar = 4-chlorophenyl, pyridin-3-yl, 1-benzothiophen-2-yl, etc.), [1.1.1]propellane, and pinacol boronates such as bis(pinacolato)diboron and i-PrOBpin to generate benzylamine bicyclo[1.1.1]pentane (BCP) pinacol boronates I was reported. These structures are analogs to highly sought diarylmethanamine cores, which are common motifs in bioactive mols. The versatility of the boronate esters I (Ar = Ph, 3,5-difluorophenyl, 4-trifluoromethoxyphenyl) handle via downstream functionalization through a variety of reactions, including a challenging Pd-catalyzed (hetero)arylation that exhibits a broad substrate scope was demonstrated. These methods enable the synthesis of high-value BCP benzylamines II (R1 = naphthalen-2-yl, 4-(dimethylsulfamoyl)phenyl, pyridin-4-yl, etc.) and were inaccessible by existing methods. Furthermore, the successful application of these newly developed (hetero)arylation conditions to a variety of challenging tertiary pinacol boronates, including nitrogen-containing heterocycles, 1,1-disubstituted cyclopropanes, and other BCP cores e.g., 4,4,5,5-tetramethyl-2-(1-phenylcyclopropyl)-1,3,2-dioxaborolane were demonstrated.

Chemical Science published new progress about Addition reaction. 3959-07-7 belongs to class bromides-buliding-blocks, and the molecular formula is C7H8BrN, Safety of 4-Bromobenzylamine.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Sun, Shuang-Shuang; Mo, Zu-Yu; Chen, Yan-Yan; Xu, Yan-Li published the artcile< Synthesis of Selenyl-Substituted Quinoline Derivatives via Substrate-Controlled Three-Component Domino Reactions>, Computed Properties of 29124-57-0, the main research area is cyclohexanedione aminobenzaldehyde diselenide tandem three component selenylation; selenyl dihydroacridinone preparation; alkanedione aminobenzaldehyde diselenide tandem three component selenylation; diselenoacetyl quinoline preparation.

A simple and efficient method for the preparation of selenyl-substituted quinoline derivatives through a Csp3 selenylation of in-situ generated 3-acetyl quinolines was developed. This protocol was easy to handle, scalable and good functional group tolerant, providing a rapid method to 3-selenoacetyl quinoline and 3-diselenoacetyl quinoline derivatives

Journal of Organic Chemistry published new progress about Acridines Role: PRP (Properties), SPN (Synthetic Preparation), PREP (Preparation). 29124-57-0 belongs to class bromides-buliding-blocks, and the molecular formula is C7H6BrNO, Computed Properties of 29124-57-0.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Carrico, Dora; Ohkanda, Junko; Kendrick, Howard; Yokoyama, Kohei; Blaskovich, Michelle A.; Bucher, Cynthia J.; Buckner, Frederick S.; Van Voorhis, Wesley C.; Chakrabarti, Debopam; Croft, Simon L.; Gelb, Michael H.; Sebti, Said M.; Hamilton, Andrew D. published the artcile< In vitro and in vivo antimalarial activity of peptidomimetic protein farnesyltransferase inhibitors with improved membrane permeability>, Computed Properties of 16426-64-5, the main research area is FRI2148 prodrug preparation antimalarial Plasmodium farnesyltransferase inhibitor.

A series of protein farnesyltransferase inhibitor ester prodrugs of FTI-2148 were synthesized in order to evaluate the effects of ester structure modification on antimalarial activity and for further development of a farnesyltransferase inhibitor with in vivo activity. Evaluation against P. falciparum in red blood cells showed that all the investigated esters exhibited significant antimalarial activity, with the benzyl ester 16 showing the best inhibition (ED50 = 150 nM). Addnl., compound I displayed in vivo activity and was found to suppress parasitemia by 46.1% at a dose of 50 mg kg-1 day-1 against Plasmodium berghei in mice. The enhanced inhibition potency of the esters is consistent with improved cell membrane permeability compared to that of the free acid. The results of this study suggest that protein farnesyltransferase is a valid antimalarial drug target and that the antimalarial activity of these compounds derives from a balance between the hydrophobic character and the size and conformation of the ester moiety.

Bioorganic & Medicinal Chemistry published new progress about Antimalarials. 16426-64-5 belongs to class bromides-buliding-blocks, and the molecular formula is C7H4BrNO4, Computed Properties of 16426-64-5.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Li, Wenjun; Li, Xin; Ye, Tingting; Wu, Wenbin; Liang, Xinmiao; Ye, Jinxing published the artcile< Asymmetric organocatalytic Michael/α-alkylation reaction of α,β-unsaturated aldehyde with chloroacetophenone>, Category: bromides-buliding-blocks, the main research area is unsaturated aldehyde chloroacetophenone Jorgensen Hayashi catalyst asym Michael alkylation; cyclopropanecarboxaldehyde stereoselective preparation.

Asym. organocatalytic Michael/α-alkylation reactions of α,β-unsaturated aldehydes with chloroacetophenones have been developed. The biol. useful cyclopropane motifs, e.g. I, were synthesized with high yields and up to >99% ee, >30:1 dr through Jorgensen-Hayashi catalyst under mild conditions.

Tetrahedron Letters published new progress about Alkylation catalysts, stereoselective. 3893-18-3 belongs to class bromides-buliding-blocks, and the molecular formula is C9H7BrO, Category: bromides-buliding-blocks.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary