Category: bromides-buliding-blocks

Chen, Xiulei; Zhou, Zhen; Li, Zhong; Xu, Xiaoyong published the artcile< Synthesis and nematicidal activities of 1,2,3-benzotriazin-4-one containing 4,5-dihydrothiazole-2-thiol derivatives against Meloidogyne incognita>, Category: bromides-buliding-blocks, the main research area is benzotriazinone dihydrothiazole thiol preparation nematocidal activity.

A series of novel 1,2,3-benzotriazin-4-one derivatives containing 4,5-dihydrothiazole-2-thiol I (R = H, 5-OMe, 7-F, 8-NO2, etc.) was synthesized. The bioassay results showed that compounds I (R = 7-OMe, 6-NO2, 7-Cl (A)) exhibited good control efficacy against the cucumber root-knot nematode disease caused by Meloidogyne incognita at the concentration of 10.0 mg L-1 in vivo. Compound (A) showed excellent nematicidal activity with inhibition 68.3% at a concentration of 1.0 mg L-1. It suggested that the structure of 1,2,3-benzotriazin-4-one containing 4,5-dihydro-thiazole-2-thiol could be optimized further.

Phosphorus, Sulfur and Silicon and the Related Elements published new progress about Benzotriazines Role: AGR (Agricultural Use), BSU (Biological Study, Unclassified), RCT (Reactant), SPN (Synthetic Preparation), BIOL (Biological Study), USES (Uses), RACT (Reactant or Reagent), PREP (Preparation). 20776-50-5 belongs to class bromides-buliding-blocks, and the molecular formula is C7H6BrNO2, Category: bromides-buliding-blocks.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Feng, Xin; Cui, Hai-Lei; Xu, Shi; Wu, Li; Chen, Ying-Chun published the artcile< Organocatalytic Direct Vinylogous Michael Addition of α,β-Unsaturated γ-Butyrolactam to α,β-Unsaturated Aldehydes and an Illustration to Scaffold Diversity Synthesis>, Formula: C9H7BrO, the main research area is alkyl butyrolactam stereoselective preparation; unsaturated butyrolactam aldehyde diastereoselective enantioselective regioselective chemoselective Michael addition; alkaloid stereoselective preparation; butyrolactam reductive amination intramol aza Michael addition; diastereoselective reductive radical conjugate addition cyclization.

The first organocatalytic regio- and chemoselective direct vinylogous Michael addition of N-Boc α,β-unsaturated γ-butyrolactam to α,β-unsaturated aldehydes is reported. The desired adducts, e.g. I, with multiple orthogonal sets of functionalities were obtained in excellent enantioselectivity (up to 98% ee) with low to outstanding diastereoselectivity (d.r. up to > 20:1). Moreover, it has been demonstrated that the products were quite valuable for scaffold diversity synthesis. A number of enantioenriched natural-product-like or drug-like mols. with fused bi-, tri-, and polycyclic structures, e.g. II, have been efficiently constructed, which might have potentials in the later explorations for the biol. related studies.

Chemistry – A European Journal published new progress about Alkaloids Role: PRP (Properties), RCT (Reactant), SPN (Synthetic Preparation), RACT (Reactant or Reagent), PREP (Preparation). 3893-18-3 belongs to class bromides-buliding-blocks, and the molecular formula is C9H7BrO, Formula: C9H7BrO.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Cheng, Hua; Yang, Lu; Liu, Hong-Fu; Zhang, Rui; Chen, Cheng; Wu, Yuan; Jiang, Wen published the artcile< N-(4-(2-chloro-4-(trifluoromethyl)phenoxy)phenyl)picolinamide as a new inhibitor of mitochondrial complex III: Synthesis, biological evaluation and computational simulations>, Application In Synthesis of 81107-97-3, the main research area is chlorotrifluoromethylphenoxyphenylpicolinamide preparation mitochondria complex III inhibitor; Amide; Biological evaluation; Computational simulation; Diaryl ether; Inhibitor; Mitochondrial complex III.

Mitochondrial complex III is one of the most promising targets for a number of pharmaceuticals and fungicides. Due to the wide-spread use of complex III-inhibiting fungicides, a considerable increase of resistance occurred worldwide. Therefore, inhibitors with novel scaffolds and potent activity against complex III are still in great demand. A new series of amide compounds bearing the diaryl ether scaffold were designed and prepared, followed by the biol. evaluation. Gratifyingly, several compounds demonstrated potent activity against succinate-cytochrome c reductase (SCR, a mixture of mitochondrial complex II and complex III), with compound N-(4-(2-chloro-4-(trifluoromethyl)phenoxy)phenyl)picolinamide possessing the best inhibitory activity (IC50 = 0.91 ± 0.09μmol/L). Addnl. studies verified that N-(4-(2-chloro-4-(trifluoromethyl)phenoxy)phenyl)picolinamide was a new inhibitor of complex III. Moreover, computational simulations elucidated that N-(4-(2-chloro-4-(trifluoromethyl)phenoxy)phenyl)picolinamide should bind to the Qo site of complex III. The authors believe this work will be valuable for the preparation and discovery of more complex III inhibitors.

Bioorganic & Medicinal Chemistry Letters published new progress about 81107-97-3. 81107-97-3 belongs to class bromides-buliding-blocks, and the molecular formula is C7H4BrF3O, Application In Synthesis of 81107-97-3.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

An, Shuyi; Guo, Zhifen; Liu, Xin; Che, Yan; Xing, Hongzhu; Chen, Peng published the artcile< Visible-light-responsive lanthanide coordination polymers for highly efficient photocatalytic aerobic oxidation of amines and thiols>, Electric Literature of 3959-07-7, the main research area is coordination polymer lanthanide anthracene ethyne dibenzoate fluorobenzoate complex preparation; photochem oxidation catalyst lanthanide anthracene ethyne dibenzoate fluorobenzoate polymeric; crystal structure lanthanide anthracene ethyne dibenzoate fluorobenzoate polymeric complex.

Development of visible-light-induced photocatalytic reactions using mol. oxygen as the terminal oxidant is intriguing in view of the current environmental and energy issues. The authors report herein the synthesis and characterization of a series of novel photocatalysts of lanthanide coordination polymers (Ln-CPs) with desirable characters of wide-range visible-light adsorption and excellent chem. stability. They show excellent selectivity and yield for the aerobic oxidation of amines and thiols to produce imines and disulfide, resp. Mechanism studies including ESR and radical quenching indicate these Ln-CPs are highly efficient to activate mol. oxygen into highly reactive oxygen species of superoxide radical and singlet oxygen via photoinduced electron and energy transfer, resp. It is notable that the photocatalytic oxidation of thiols into disulfide have never been reported using a CP photocatalyst prior to this study. Meanwhile, the synthesized CPs exhibits superior photocatalytic performance to other reported ones for amine oxidation due to the synergy of singlet oxygen and superoxide radical species. The work provides an in-depth understanding of the photoinduced oxygen activation based on a CP photocatalyst to accomplish a visible-light-induced reaction, illustrating the great potential of photoactive CPs for green synthesis.

New Journal of Chemistry 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, Electric Literature of 3959-07-7.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Shchegolkov, Evgeny V.; Burgart, Yanina V.; Matsneva, Daria A.; Borisevich, Sophia S.; Kadyrova, Renata A.; Orshanskaya, Iana R.; Zarubaev, Vladimir V.; Saloutin, Victor I. published the artcile< Polyfluoroalkylated antipyrines in Pd-catalyzed transformations>, Name: 3-Bromobenzotrifluoride, the main research area is aryl phenylethynyl polyfluoroalkylated antipyrine preparation antiviral; arylhalogenide arylation Suzuki Sonogashira palladium catalyst.

In the direct C-H arylation with arylhalogenides in the presence of Pd(OAc)2, trifluoromethyl-containing antipyrine reacts very slowly and incompletely owing to the low nucleophilicity of its C4 center. However, it was effective in modifying polyfluoroalkyl-substituted 4-bromo- and 4-iodo antipyrines by the Suzuki and Sonogashira reactions. It was established that using Pd2(dba)3 as catalyst and XPhos as phosphine ligand was the optimal catalytic system for the synthesis of 4-aryl- and 4-phenylethynyl-3-polyfluoroalkyl-antipyrines. Moreover, iodo-derivatives as the initial reagents were found to be more advantageous compared to bromo-containing analogs. It was found that 4-phenylethynyl-5-CF3-antipyrine has a moderate activity against the influenza virus A/Puerto Rico/8/34 (H1N1) and 4-iodo-5-CF3-antipyrine reveals a weak activity against the vaccine virus (strain Copenhagen) and bovine diarrhea virus (strain VC-1).

RSC Advances published new progress about Antiviral agents. 401-78-5 belongs to class bromides-buliding-blocks, and the molecular formula is C7H4BrF3, Name: 3-Bromobenzotrifluoride.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Gensch, Tobias; Smith, Sleight R.; Colacot, Thomas J.; Timsina, Yam N.; Xu, Guolin; Glasspoole, Ben W.; Sigman, Matthew S. published the artcile< Design and Application of a Screening Set for Monophosphine Ligands in Cross-Coupling>, Application of C9H11Br, the main research area is arene aryl boronic acid palladium phosphine Suzuki coupling; bromobenzene aminobenzimidazole palladium phosphine chemoselective Buchwald Hartwig amination.

A virtual library, kraken, which is representative of the monodentate P(III)-ligand chem. space, was utilized as the basis to represent the discrete ligands as continuous variables. Using dimensionality reduction and clustering techniques, a Phosphine Optimization Screening Set (PHOSS) of 32 com. available ligands was suggested that samples this chem. space completely and evenly. The application of this screening set was presented in the identification of active catalysts for various cross-coupling reactions and show how well-distributed sampling of the chem. space facilitates identification of active catalysts. Furthermore, how proximity in ligand space can be a useful guide to further explore ligands when very few active catalysts are known was demonstrated.

ACS Catalysis published new progress about Aryl halides Role: RCT (Reactant), RACT (Reactant or Reagent). 576-83-0 belongs to class bromides-buliding-blocks, and the molecular formula is C9H11Br, Application of C9H11Br.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Barik, Soumen; Das, Rohan Chandra; Balanna, Kuruva; Biju, Akkattu T. published the artcile< Kinetic Resolution Approach to the Synthesis of C-N Axially Chiral N-Aryl Aminomaleimides via NHC-Catalyzed [3 + 3] Annulation>, Category: bromides-buliding-blocks, the main research area is phenyl aminopyrrolidione bromopropenal arene heterocyclic carbene cycloaddition kinetic resolution; aryl pyrrolopyridine trione preparation.

Chiral NHC-catalyzed kinetic resolution of N-aryl aminomaleimides allowing the synthesis of C-N axially chiral N-aryl aminomaleimides via remote chirality control was presented. The catalytically generated α,β-unsaturated acylazoliums from 2-bromoenals underwent selective [3 + 3] annulation with one of the enantiomers of maleimide to furnish fused-dihydropyridinone (bearing axial/central chirality, up to 6:1 dr, >99:1 er) leaving the enantioenriched opposite enantiomer (up to >99:1 er). Studies on C-N bond rotation barrier and dependence on temperature were also provided.

Organic Letters published new progress about [3+3] Cycloaddition reaction (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

Ge, Liang; Wang, Ding-Xing; Xing, Renyi; Ma, Di; Walsh, Patrick J.; Feng, Chao published the artcile< Photoredox-catalyzed oxo-amination of aryl cyclopropanes>, Application of C21H22BrP, the main research area is aryl cyclopropane azole iridium photocatalyst ring opening oxidative amination; azolylalkyl ketone regioselective preparation.

A photoredox-coupled ring-opening oxo-amination of electronically unbiased cyclopropanes, which enabled the expedient construction of a host of structurally diverse β-amino ketone derivatives Through one electron oxidation, the relatively inert aryl cyclopropanes were readily converted into reactive radical cation intermediates, which in turn participate in the ensuing ring-opening functionalizations. Based on mechanistic studies, the present oxo-amination was proposed to proceed through an SN2-like nucleophilic attack/ring-opening manifold. This protocol featured wide substrate scope, mild reaction conditions, and use of dioxygen as an oxidant both for catalyst regeneration and oxygen-incorporation. Moreover, a one-pot formal aminoacylation of olefins was described through a sequential cyclopropanation/oxo-amination.

Nature Communications published new progress about Aminoacylation (regioselective). 1530-33-2 belongs to class bromides-buliding-blocks, and the molecular formula is C21H22BrP, Application of C21H22BrP.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Adeniji, Adegoke O.; Twenter, Barry M.; Byrns, Michael C.; Jin, Yi; Chen, Mo; Winkler, Jeffrey D.; Penning, Trevor M. published the artcile< Development of Potent and Selective Inhibitors of Aldo-Keto Reductase 1C3 (Type 5 17β-Hydroxysteroid Dehydrogenase) Based on N-Phenyl-Aminobenzoates and Their Structure-Activity Relationships>, Product Details of C9H9BrO3, the main research area is aldo keto reductase inhibitor phenyl aminobenzoate preparation SAR.

Aldo-keto reductase 1C3 (AKR1C3; type 5 17β-hydroxysteroid dehydrogenase) is overexpressed in castration resistant prostate cancer (CRPC) and is implicated in the intratumoral biosynthesis of testosterone and 5α-dihydrotestosterone. Selective AKR1C3 inhibitors are required because compounds should not inhibit the highly related AKR1C1 and AKR1C2 isoforms which are involved in the inactivation of 5α-dihydrotestosterone. NSAIDs, N-phenylanthranilates in particular, are potent but nonselective AKR1C3 inhibitors. Using flufenamic acid, 2-{[3-(trifluoromethyl)phenyl]amino}benzoic acid, as lead compound, five classes of structural analogs were synthesized and evaluated for AKR1C3 inhibitory potency and selectivity. Structure-activity relationship (SAR) studies revealed that a meta-carboxylic acid group relative to the amine conferred pronounced AKR1C3 selectivity without loss of potency, while electron withdrawing groups on the phenylamino B-ring were optimal for AKR1C3 inhibition. Lead compounds did not inhibit COX-1 or COX-2 but blocked the AKR1C3 mediated production of testosterone in LNCaP-AKR1C3 cells. These compounds offer promising leads toward new therapeutics for CRPC.

Journal of Medicinal Chemistry published new progress about Antitumor agents. 17100-65-1 belongs to class bromides-buliding-blocks, and the molecular formula is C9H9BrO3, Product Details of C9H9BrO3.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Chen, Xiang-Yu; Chen, Kun-Quan; Sun, De-Qun; Ye, Song published the artcile< N-Heterocyclic carbene-catalyzed oxidative [3+2] annulation of dioxindoles and enals: cross coupling of homoenolate and enolate>, Recommanded Product: 3-(4-Bromophenyl)acrylaldehyde, the main research area is spirocyclic oxindole lactone preparation; dioxindole enal oxidative annulation heterocyclic carbene catalyst.

The N-heterocyclic carbene-catalyzed oxidative [3+2] annulation of dioxindoles I (R = H, Bn; X = H, 4-Br, 5-H3CO, 6-Br) and enals R1CH=CHCHO (R1 = n-C6H13, HC=CHCH3, 4-FC6H4, etc.) was developed for giving the corresponding spirocyclic oxindole-γ-lactones II and III in good yields with high to excellent diastereo- and enantioselectivities. The challenging aliphatic enals worked effectively using this strategy. The oxidative cross coupling of homoenolate and enolate via single electron transfer was proposed as the key step for the reaction.

Chemical Science published new progress about Cross-coupling reaction, stereoselective. 3893-18-3 belongs to class bromides-buliding-blocks, and the molecular formula is C9H7BrO, Recommanded Product: 3-(4-Bromophenyl)acrylaldehyde.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary