Category: isoquinoline

Hajra, Saumen published the artcileBronsted Acid Promoted Regioselective C-3 Arylation and Heteroarylation of Spiro-epoxyoxindoles for the Construction of All Carbon Quaternary Centres: A Detailed Study, Product Details of C8H10O2, the main research area is spiroepoxyoxindole heteroarene carbon quaternary center trifluoroacetic acid Friedel Crafts; oxindole derivative regioselective green preparation.

An efficient strategy for the synthesis of all carbon quaternary centers has been developed via Bronsted acid-promoted highly regioselective intermol. Friedel-Crafts reactions of heteroarenes or arenes with spiro-epoxyoxindoles. In addition, we have successfully performed the ring opening reaction in relatively cheap condition using water as a solvent. Beneficially, we have utilized the methodol. as the key step for the synthesis of advanced precursors of various natural and unnatural indole alkaloids.

European Journal of Organic Chemistry published new progress about Aromatic hydrocarbons Role: RCT (Reactant), RACT (Reactant or Reagent). 151-10-0 belongs to class isoquinoline, name is 1,3-Dimethoxybenzene, and the molecular formula is C8H10O2, Product Details of C8H10O2.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Shimizu, Masao published the artcileSulfenylation of arenes and olefins with acidic sulfenamides, Formula: C8H10O2, the main research area is arylsulfide preparation; sulfenamide arene olefin sulfenylation.

Sulfenylation of electron-rich arenes was carried out with N-unsubstituted sulfenamides in the presence of Bronsted or Lewis acids. α-Methylstyrene as an olefin was also sulfenylated with acidic sulfenamides, and a sulfur substituent was introduced on the Me group. Intramol. sulfenylation proceeded for allyl 2-sulfenamoylbenzoate derivatives, and sulfur containing seven-membered heterocycles were obtained.

Phosphorus, Sulfur and Silicon and the Related Elements published new progress about Aromatic hydrocarbons Role: RCT (Reactant), RACT (Reactant or Reagent). 151-10-0 belongs to class isoquinoline, name is 1,3-Dimethoxybenzene, and the molecular formula is C8H10O2, Formula: C8H10O2.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Mishra, Pawan K. published the artcileBF3-Etherate-catalyzed tandem reaction of 2-formylarylketones with electron-rich arenes/heteroarenes: an assembly of isobenzofurans, Product Details of C8H10O2, the main research area is diarylisobenzofuran preparation chemoselective; formylarylketone arene boron trifluoride etherate catalyst tandem reaction.

An efficient and BF3·Et2O-catalyzed chemoselective synthesis of diversified 1,3-diarylisobenzofuran in a high yield has been described. The reaction proceeds through sequential hydroarylation-cyclization between 2-formylarylketones and electron-rich arenes/heteroarenes. Advantageous features of the developed methodol. include operational simplicity, a broad substrate scope, and applicability towards gram scale synthesis. The utility of isobenzofuran derivatives as the diene was extended to the synthesis of [4+2]-cyclo-adducts with DMAD and the synthesis of 1,2-dicarbonylarenes in good yields.

Chemical Communications (Cambridge, United Kingdom) published new progress about Aromatic hydrocarbons Role: RCT (Reactant), RACT (Reactant or Reagent). 151-10-0 belongs to class isoquinoline, name is 1,3-Dimethoxybenzene, and the molecular formula is C8H10O2, Product Details of C8H10O2.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Bole, Leonie J. published the artcileEnhancing Metalating Efficiency of the Sodium Amide NaTMP in Arene Borylation Applications, Product Details of C8H10O2, the main research area is metalation arene sodium amide borylation Suzuki coupling preparation biaryl; Amide; Borylation; Metalation; Sodium; Structural Elucidation.

Though LiTMP (TMP = 2,2,6,6-tetramethylpiperidide) is a commonly used amide, surprisingly the heavier NaTMP has hardly been utilized. Here, by mixing NaTMP with tridentate donor PMDETA (N,N,N’,N”,N”-pentamethyldiethylenetriamine), we provide structural, and mechanistic insights into the sodiation of non-activated arenes (e.g. anisole and benzene). While these reactions are low yielding, adding B(OiPr)3 has a profound effect, not only by intercepting the CAr-Na bond, but also by driving the metalation reaction towards quant. formation of more stabilized sodium aryl boronates. Demonstrating its metalating power, regioselective C2-metalation/borylation of naphthalene has been accomplished contrasting with single-metal based protocols which are unselective and low yielding. Extension to other arenes allows for in situ generation of aryl boronates which can then directly engage in Suzuki-Miyaura couplings, furnishing a range of biaryls in a selective and efficient manner.

Angewandte Chemie, International Edition published new progress about Aromatic hydrocarbons Role: RCT (Reactant), RACT (Reactant or Reagent). 151-10-0 belongs to class isoquinoline, name is 1,3-Dimethoxybenzene, and the molecular formula is C8H10O2, Product Details of C8H10O2.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Fan, Jiali published the artcileVisible light-induced mono-bromination of arenes with BrCCl3, Product Details of C8H10O2, the main research area is bromoarene preparation; arene bromotrichloromethane photochem monobromination.

A highly efficient and regioselective bromination of electron-rich arenes and heteroarenes using com. available BrCCl3 as a “”Br”” source has been developed. The reaction was performed in air under mild conditions with photocatalyst Ru(bpy)3Cl2·6H2O, avoiding the usage of strong acids and strong oxidants. Mono-brominated products were obtained with medium to excellent yields (up to 94%). This strategy has shown good compatibility and high para-selectivity, which will facilitate the complicated synthesis.

Chemical Communications (Cambridge, United Kingdom) published new progress about Aromatic hydrocarbons Role: RCT (Reactant), RACT (Reactant or Reagent). 151-10-0 belongs to class isoquinoline, name is 1,3-Dimethoxybenzene, and the molecular formula is C8H10O2, Product Details of C8H10O2.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Duesel, Simon Josef Siegfried published the artcileOxidative Photochlorination of Electron-Rich Arenes via in situ Bromination, Quality Control of 151-10-0, the main research area is chloroarene regioselective preparation; arene oxidative photochlorination photoredox catalyst.

Electron-rich arenes are oxidatively photochlorinated in the presence of catalytic amounts of bromide ions, visible light, and 4CzIPN as organic photoredox catalyst. The substrates are brominated in situ in a first photoredox-catalyzed oxidation step, followed by a photocatalyzed ipso-chlorination, yielding the target compounds in high ortho/para regioselectivity. Dioxygen serves as a green and convenient terminal oxidant. The use of aqueous hydrochloric acid as the chloride source reduces the amount of saline byproducts.

European Journal of Organic Chemistry published new progress about Aromatic hydrocarbons Role: RCT (Reactant), RACT (Reactant or Reagent). 151-10-0 belongs to class isoquinoline, name is 1,3-Dimethoxybenzene, and the molecular formula is C8H10O2, Quality Control of 151-10-0.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Wright, Jay S. published the artcileSequential Ir/Cu-Mediated Method for the Meta-Selective C-H Radiofluorination of (Hetero)Arenes, Safety of 1,3-Dimethoxybenzene, the main research area is sequential iridium copper mediated regioselective radiofluorination arene heteroarene.

This article describes a sequential Ir/Cu-mediated process for the meta-selective C-H radiofluorination of (hetero)arene substrates. In the first step, Ir-catalyzed C(sp2)-H borylation affords (hetero)aryl pinacolboronate (BPin) esters. The intermediate organoboronates are then directly subjected to copper-mediated radiofluorination with [18F]tetrabutylammonium fluoride to afford fluorine-18 labeled (hetero)arenes in high radiochem. yield and radiochem. purity. This entire process is performed on a bench top without Schlenk or glove box techniques and circumvents the need to isolate (hetero)aryl boronate esters. The reaction was automated on a TracerLab FXFN module with 1,3-dimethoxybenzene and a meta-tyrosine derivative The products, [18F]1-fluoro-3,5-dimethoxybenzene and an 18F-labeled meta-tyrosine derivative, were obtained in 37 ± 5% isolated radiochem. yield and >99% radiochem. purity and 25% isolated radiochem. yield and 99% radiochem. purity, and 0.52 Ci/μmol (19.24 GBq/μmol) molar activity (Am), resp.

Journal of the American Chemical Society published new progress about Aromatic hydrocarbons Role: RCT (Reactant), RACT (Reactant or Reagent). 151-10-0 belongs to class isoquinoline, name is 1,3-Dimethoxybenzene, and the molecular formula is C8H10O2, Safety of 1,3-Dimethoxybenzene.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Ma, Zhuang published the artcileTungstate-Catalyzed Biomimetic Oxidative Halogenation of (Hetero)Arene under Mild Condition, Safety of 1,3-Dimethoxybenzene, the main research area is arene metal halide tungstate catalyst regioselective chemoselective oxidative halogenation; haloarene preparation green chem; Green Chemistry; Organic Chemistry; Pharmaceutical Engineering.

A biomimetic approach for halogenation (Br, Cl, I) of (hetero)arene catalyzed by tungstate under mild pH in a cost-efficient and environment- and operation-friendly manner was reported. Broad substrates diverse functional group tolerance and good chemo- and regioselectivities were observed, even in late-stage halogenation of complex mols. Moreover, this approach was scaled up to over 100 g without time-consuming and costly column purification Several drugs and key precursors for drugs bearing aryl halides (Br, Cl, I) was conveniently prepared based on this approach.

iScience published new progress about Aromatic hydrocarbons Role: RCT (Reactant), RACT (Reactant or Reagent). 151-10-0 belongs to class isoquinoline, name is 1,3-Dimethoxybenzene, and the molecular formula is C8H10O2, Safety of 1,3-Dimethoxybenzene.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Dahiya, Amit published the artcileBase-Mediated Direct C-H Germylation of Heteroarenes and Arenes, Application of 1,3-Dimethoxybenzene, the main research area is base catalyst germylation heteroarene arene benzylic carbon hydrogen bond; germane aryl preparation coupling iodoarene.

The direct C-H germylation of heteroarenes, arenes, and benzylic C-H bonds promoted by lithium tetramethylpiperidide (LiTMP) is reported. The method is rapid, selective, and operationally simple, consisting of direct addition of all reagents at room temperature (one-pot procedure). The synthetic utility of these newly accessed aryl germanes as viable coupling partners in Pd catalysis is also showcased.

Organic Letters published new progress about Aromatic hydrocarbons Role: RCT (Reactant), RACT (Reactant or Reagent). 151-10-0 belongs to class isoquinoline, name is 1,3-Dimethoxybenzene, and the molecular formula is C8H10O2, Application of 1,3-Dimethoxybenzene.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Saikia, Sudakhina published the artcileRegioselective Friedel-Crafts Acylation Reaction Using Single Crystalline and Ultrathin Nanosheet Assembly of Scrutinyite-SnO2, Recommanded Product: 1,3-Dimethoxybenzene, the main research area is aryl ketone preparation regioselective solventless; arene acid chloride Friedel Crafts acylation tin oxide catalyst.

In this work, a facile and general approach for the synthesis of single crystalline and ultrathin 2D nanosheets assembly of scrutinyite-SnO2 through a simple solvothermal method has been described. The structural and compositional characterization using X-ray diffraction (Rietveld refinement anal.), high-resolution transmission electron microscopy, at. force microscopy, XPS, and so on reveal that the as-synthesized 2D nanosheets are ultrathin and single crystallized in the scrutinyite-SnO2 phase with high purity. The ultrathin SnO2 nanosheets show predominant growth in the [011] direction on the main surface having a thickness of ca. 1.3 nm. The SnO2 nanosheets are further employed for the regioselective Friedel-Crafts acylation to synthesize aromatic ketones RC(O)R1 (R = C6H5, 4-CH3C6H4, 2-thienyl, etc.; R1 = Me, Ph) that have potential significance in chem. industry as synthetic intermediates of pharmaceuticals and fine chems. A series of aromatic substrates acylated over the SnO2 nanosheets have afforded the corresponding aromatic ketones with up to 92% yield under solvent-free conditions. Comprehensive catalytic investigations display the SnO2 nanosheet assembly as a better catalytic material compared to the heterogeneous metal oxide catalysts used so far in the view of its activity and reusability in solvent-free reaction conditions.

ACS Omega published new progress about Aromatic hydrocarbons Role: RCT (Reactant), RACT (Reactant or Reagent). 151-10-0 belongs to class isoquinoline, name is 1,3-Dimethoxybenzene, and the molecular formula is C8H10O2, Recommanded Product: 1,3-Dimethoxybenzene.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem