Month: October 2022

Yang, Yu-Jie; Ji, Yuanyuan; Qi, Liangliang; Wang, Guanjun; Hui, Xin-Ping published the artcile< Asymmetric Synthesis of Cyclopenta[3,4]pyrroloindolones via N-Heterocyclic Carbene-Catalyzed Michael/Aldol/Lactamization Cascade Reaction>, COA of Formula: C9H7BrO, the main research area is heterocyclic carbene catalyst asym Michael aldol lactamization cascade reaction; asym Michael aldol lactamization cascade reaction enal indole enone; functionalized cyclopentapyrroloindolone stereoselective preparation.

The N-heterocyclic carbene-catalyzed asym. Michael/aldol/lactamization cascade reaction of enals and indole-derived enones for the synthesis of functionalized cyclopenta[3,4]pyrroloindolones with four consecutive stereogenic centers, e.g. I, has been achieved. The products were obtained in good yield with high diastereoselectivity and excellent enantioselectivity.

Organic Letters published new progress about Aldol addition catalysts, stereoselective. 3893-18-3 belongs to class bromides-buliding-blocks, and the molecular formula is C9H7BrO, COA of Formula: C9H7BrO.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Baker, Stephen J.; Zhang, Yong-Kang; Akama, Tsutomu; Wheeler, Conrad; Plattner, Jacob J.; Rosser, Richard M.; Reid, Ronald P.; Nixon, Neil S. published the artcile< Synthesis of isotopically labelled (3-14C)- and (3,3-2H2)-5-fluoro-1,3-dihydro-1-hydroxy-2,1-benzoxaborole (AN2690), a new antifungal agent for the potential treatment of onychomycosis>, HPLC of Formula: 6942-39-8, the main research area is fluoro dihydro hydroxy benzoxaborole AN2690 radiolabeled antifungal onychomycosis.

5-Fluoro-1,3-dihydro-1-hydroxy-2,1-benzoxaborole (AN2690) is a new antifungal agent for the potential treatment of onychomycosis. During the preclin. development phase, it was necessary to synthesize the radioisotope [3-14C]-5-fluoro-1,3-dihydro-1-hydroxy-2,1-benzoxaborole and the deuterium isotope [3,3-2H2]-5-fluoro-1,3-dihydro-1-hydroxy-2,1-benzoxaborole for in vitro studies. We report the synthesis of these two isotopically labeled derivatives

Journal of Labelled Compounds and Radiopharmaceuticals published new progress about Fungicides. 6942-39-8 belongs to class bromides-buliding-blocks, and the molecular formula is C8H6BrFO2, HPLC of Formula: 6942-39-8.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Xu, Guolin; Gao, Peng; Colacot, Thomas J. published the artcile< Tunable Unsymmetrical Ferrocene Ligands Bearing a Bulky Di-1-adamantylphosphino Motif for Many Kinds of Csp2-Csp3 Couplings>, Name: 2,4,6-Trimethylbromobenzene, the main research area is adamantyl phosphino linked ferrocene ligand preparation palladium complex; Murahashi Feringa Kumada Corriu Negishi Suzuki Miyaura coupling reaction.

A class of ferrocene-based unsym. bidentate ligands containing a di(1-adamantyl)phosphino group, Fc(PAd2)(PR2) (R = Ph, Cy, iPr, tBu) abbreviated as MPhos ligands, and their corresponding (MPhos)PdCl2 pre-catalysts were synthesized in very good yields and fully characterized using techniques including single-crystal X-ray crystallog. These pre-catalysts were utilized for Csp2-Csp3 couplings for many kinds of name reactions such as Murahashi-Feringa, Kumada-Corriu, Negishi, and Suzuki-Miyaura with good substrate scope and isolated yields. About nine “”drug-like”” mols. were also tested successfully to demonstrate their potential applications in active pharmaceutical ingredient (API) synthesis. The tunability of the catalyst system enabled the matching of sterics and electronics of the ligand with that of the substrates to have desirable results for over five dozen systems in good yields and selectivity.

ACS Catalysis published new progress about Adamantanes Role: CAT (Catalyst Use), SPN (Synthetic Preparation), USES (Uses), PREP (Preparation). 576-83-0 belongs to class bromides-buliding-blocks, and the molecular formula is C9H11Br, Name: 2,4,6-Trimethylbromobenzene.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Cao, Qun; Nicholson, William I.; Jones, Andrew C.; Browne, Duncan L. published the artcile< Robust Buchwald-Hartwig amination enabled by ball-milling>, Category: bromides-buliding-blocks, the main research area is arylhalide secondary amine Buchwald Hartwig amination palladium ball milling.

An operationally simple mechanochem. method for the Pd catalyzed Buchwald-Hartwig amination of arylhalides with secondary amines has been developed using a Pd PEPPSI catalyst system. The system is demonstrated on 30 substrates and applied in the context of a target synthesis. Furthermore, the performance of the reaction under aerobic conditions has been probed under traditional solution and mechanochem. conditions, the observations are discussed herein.

Organic & Biomolecular Chemistry 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, Category: bromides-buliding-blocks.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Lin, Hua-Chen; Knox, Gary J.; Pearson, Colin M.; Yang, Chao; Carta, Veronica; Snaddon, Thomas N. published the artcile< A Pd-H/Isothiourea Cooperative Catalysis Approach to anti-Aldol Motifs: Enantioselective α-Alkylation of Esters with Oxyallenes>, Category: bromides-buliding-blocks, the main research area is oxyallene pentafluorophenyl acetate palladium benzotetramisole enantioselective diastereoselective alkylation; pentafluorophenyl oxypentenoate preparation; methyl oxy butenyl carbamate preparation; Allenes; C1-Ammonium Enolates; Enantioselectivity; Isothioureas; Palladium Catalysis.

To complement the array of substrate-based strategies, and regulate enolate geometry at the catalyst level, a direct catalytic alkylation of esters with oxyallenes was developed. Synergizing metal hydride reactivity with Lewis base catalysis resulted in a broad reaction scope with useful levels of stereocontrol (up to >99% ee). Facile derivatization of these ambiphilic linchpins was demonstrated, providing access to high-value vicinal stereocenter-containing motifs, including 1,2-amino alcs.

Angewandte Chemie, International Edition published new progress about Alkylation catalysts, stereoselective. 3959-07-7 belongs to class bromides-buliding-blocks, and the molecular formula is C7H8BrN, Category: bromides-buliding-blocks.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Yokoyama, Akihiro; Ishii, Arisa; Ohishi, Tomoyuki; Kikkawa, Shoko; Azumaya, Isao published the artcile< Synthesis of a coronene analogue containing an amide bond by Pd-mediated intramolecular C-C bond formation of 2-halogenated 4-(alkylamino)benzoic acid cyclic trimer>, Quality Control of 16426-64-5, the main research area is coronene amide synthesis palladium mediated intramol cyclization.

A coronene analog containing amide linkage was synthesized from a halogenated cyclic triamide by palladium-mediated intramol. C-C bond formation (I → II). The cyclic triamide was formed from the condensation of 2-chloro-4-(isobutylamino)benzoic acid in the presence of dichlorotriphenylphosphorane in 1,1,2,2-tetrachloroethane. By contrast, the condensation of 2-bromo counterpart required silicon tetrachloride in pyridine. The intramol. C-C bond formation, which yielded the target coronene analog, occurred during the reaction of bromo-substituted cyclic triamide with palladium(II) acetate, triphenylphosphine, and potassium carbonate in N,N-dimethylformamide.

Tetrahedron Letters published new progress about Arylation (intramol.). 16426-64-5 belongs to class bromides-buliding-blocks, and the molecular formula is C7H4BrNO4, Quality Control of 16426-64-5.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Torres-Moya, Ivan; Harbuzaru, Alexandra; Donoso, Beatriz; Prieto, Pilar; Ponce Ortiz, Rocio; Diaz-Ortiz, Angel published the artcile< Microwave Irradiation as a Powerful Tool for the Preparation of n-Type Benzotriazole Semiconductors with Applications in Organic Field-Effect Transistors>, HPLC of Formula: 3480-11-3, the main research area is benzotriazole n type semiconductor green preparation DFT; microwave irradiation organic field effect transistor UV absorption visible; OFETs; benzotriazole; microwave irradiation.

In this work, a complex pyrazine-decorated benzotriazole derivative I that was challenging to prepare under conventional conditions was obtained via microwave irradiation Improved process and yields, dramatically decreased reaction times and environmentally friendly synthetic procedure were the key factors of this methodol. In addition, this useful derivative could be applied in organic electronics, specifically in organic field-effect transistors (OFETs), exhibiting the highest electron mobilities reported to date for benzotriazole discrete mols., of around 10-2 cm2V-1s-1.

Molecules published new progress about Benzothiazoles Role: PRP (Properties), RCT (Reactant), SPN (Synthetic Preparation), RACT (Reactant or Reagent), PREP (Preparation). 3480-11-3 belongs to class bromides-buliding-blocks, and the molecular formula is C8H5BrS2, HPLC of Formula: 3480-11-3.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Yadav, Veena D.; Kumar, Lalan; Kumari, Poonam; Kumar, Sakesh; Singh, Maninder; Siddiqi, Mohammad I.; Yadav, Prem N.; Batra, Sanjay published the artcile< Synthesis and Assessment of Fused β-Carboline Derivatives as Kappa Opioid Receptor Agonists>, Recommanded Product: 3-(4-Bromophenyl)acrylaldehyde, the main research area is embryonic kidney cell kappa opioid receptor agonist cAMP; beta-carboline; kappa opioid receptor agonist; molecular modeling; nitrogen heterocycle; pain.

The synthesis of 5-formyl-6-aryl-6H-indolo[3,2,1-de][1,5] naphthyridine-2-carboxylates by reaction between 1-formyl-9H-β-carbolines and cinnamaldehydes in the presence of pyrrolidine in water with microwave irradiation is described. Pharmacophoric modification of the formyl group offered several new fused β-carboline derivatives, which were investigated for their κ-opioid receptor (KOR) agonistic activity. Two compounds 4 a and 4 c produced appreciable agonist activity on KOR with EC50 values of 46±19 and 134±9 nM, resp. Moreover, compound-induced KOR signaling studies suggested both compounds to be extremely G-protein-biased agonists. The analgesic effect of 4 a was validated by the increase in tail flick latency in mice in a time-dependent manner, which was completely blocked by the KOR-selective antagonist norBNI. Moreover, unlike U50488, an unbiased full KOR agonist, 4 a did not induce sedation. The docking of 4 a with the human KOR was studied to rationalize the result.

ChemMedChem published new progress about Alkenes Role: BUU (Biological Use, Unclassified), BIOL (Biological Study), USES (Uses). 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

Badir, Shorouk O.; Sim, Jaehoon; Billings, Katelyn; Csakai, Adam; Zhang, Xuange; Dong, Weizhe; Molander, Gary A. published the artcile< Multi-functional Building Blocks Compatible with Photo-redox-Mediated Alkylation for DNA-Encoded Library Synthesis>, Quality Control of 20776-50-5, the main research area is amino acid DNA synthesis coupling alkylation silylamine aminomethylation; alkyl bromide cross coupling alkylation silylamine DNA synthesis; photochem redox alkylation DNA encoded library synthesis.

DNA-encoded library (DEL) technol. has emerged as a novel interrogation modality for ligand discovery in the pharmaceutical industry. Given the increasing demand for a higher proportion of C(sp3)-hybridized centers in DEL platforms, a photoredox-mediated cross-coupling and defluorinative alkylation process is introduced using com. available alkyl bromides and structurally diverse α-silylamines. Notably, no protecting group strategies for amines are necessary for the incorporation of a variety of amino-acid-based organo-silanes, providing crucial branching points for further derivatization.

Organic Letters published new progress about Alkylation. 20776-50-5 belongs to class bromides-buliding-blocks, and the molecular formula is C7H6BrNO2, Quality Control of 20776-50-5.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Discekici, Emre H.; Treat, Nicolas J.; Poelma, Saemi O.; Mattson, Kaila M.; Hudson, Zachary M.; Luo, Yingdong; Hawker, Craig J.; de Alaniz, Javier Read published the artcile< Metal-free photoredox catalyst: design and application in radical dehalogenations>, Category: bromides-buliding-blocks, the main research area is metal free photoredox catalyst radical dehalogenations.

Here we report the use of 10-phenylphenothiazine (PTH) as an inexpensive, highly reducing metal-free photocatalyst for the reduction of carbon-halogen bonds via the trapping of carbon-centered radical intermediates with a mild hydrogen atom donor. Dehalogenations were carried out on various substrates with excellent yields at room temperature in the presence of air.

Chemical Communications (Cambridge, United Kingdom) published new progress about Dehalogenation. 17100-65-1 belongs to class bromides-buliding-blocks, and the molecular formula is C9H9BrO3, Category: bromides-buliding-blocks.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary