Category: isoquinoline

Dogga, Bhushanarao published the artcilePalladium-catalyzed reductive carbonylation of (hetero)aryl halides and triflates using cobalt carbonyl as CO source, Product Details of C9H10O3, the main research area is arylcarboxaldehyde preparation aryl halide triflate reductive carbonylation cobalt carbonyl; heteroaryl carboxaldehyde preparation.

An efficient protocol for the reductive carbonylation of (hetero) aryl halides and triflates under CO gas-free conditions using Pd/Co2(CO)8 and triethylsilane has been developed. The mild reaction conditions, enhanced chemoselectivity and, easy access to heterocyclic and vinyl carboxaldehydes highlights its importance in organic synthesis.

European Journal of Organic Chemistry published new progress about Aryl aldehydes Role: SPN (Synthetic Preparation), PREP (Preparation). 86-51-1 belongs to class isoquinoline, name is 2,3-Dimethoxybenzaldehyde, and the molecular formula is C9H10O3, Product Details of C9H10O3.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Gangadurai, Chinnakuzhanthai published the artcileFeCl3-catalyzed oxidative decarboxylation of aryl/heteroaryl acetic acids: preparation of selected API impurities, Application In Synthesis of 104-01-8, the main research area is aryl heteroaryl aldehyde ketone preparation green chem; oxidative decarboxylation aryl heteroaryl acetic acid iron catalyst; ketorolac impurity B preparation.

Herein, the FeCl3-catalyzed oxidative decarboxylation of aryl- and heteroaryl acetic acids to the corresponding carbonyl compounds has been reported. A variety of useful aldehydes and ketones were prepared in a simple one-pot transformation by employing an environmentally benign, low-cost, and readily available iron salt. The utility of this method has been demonstrated by preparing five valuable API impurities including a multi-gram-scale synthesis of ketorolac impurity B for the first time.

Organic & Biomolecular Chemistry published new progress about Aryl aldehydes Role: SPN (Synthetic Preparation), PREP (Preparation). 104-01-8 belongs to class isoquinoline, name is 4-Methoxyphenylacetic acid, and the molecular formula is C9H10O3, Application In Synthesis of 104-01-8.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Fujita, Takeshi published the artcileAcid-mediated intermolecular C-F/C-H cross-coupling of 2-fluorobenzofurans with arenes: synthesis of 2-arylbenzofurans, Category: isoquinoline, the main research area is halobenzofuran arene acid promotor cross coupling reaction; aryl benzofuran preparation.

Transition-metal-free acid-promoted biaryl construction was achieved via intermol. C-F/C-H cross-coupling. By treating 2-fluorobenzofurans with arenes in the presence of AlCl3, 2-arylbenzofurans were obtained. This protocol was successfully applied to the short-step orthogonal synthesis of a bioactive 2-arylbenzofuran natural product, which allows independent transformations of C-F and C-Br bonds. Mechanistic studies indicated that α-fluorine-stabilized carbocations, generated via the protonation of 2-fluorobenzofurans, served as key intermediates. The Friedel-Crafts-type C-C bond formation between the α-fluorocarbocations and arenes, followed by hydrogen fluoride elimination, afforded 2-arylbenzofurans.

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, Category: isoquinoline.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Pei, Xiaocong published the artcileSterically controlled C-H/C-H homocoupling of arenes via C-H borylation, Category: isoquinoline, the main research area is biaryl preparation regioselective; arene borylation homocoupling iridium copper catalyst.

A mild one-pot protocol for the synthesis of biaryls R-R [R = 3-chloro-5-methylphenyl, 3-bromo-2-fluoro-5-(trifluoromethyl)phenyl, naphth-2-yl, etc.] by sequential Ir-catalyzed C-H borylation and Cu-catalyzed homocoupling of arenes RH has been described. The regiochem. of the biaryls is sterically controlled as dictated by the C-H borylation step. The methodol. is also successfully extended to heteroarenes R1H (R1 = benzofuran-2-yl, 2-methylthiophen-5-yl, 3-chloropyridin-5-yl, etc.). Some of the products obtained by this approach are impossible to obtain via Ullmann or Suzuki coupling protocols. Finally, one-pot sequence describing C-H borylation/Cu-catalyzed homocoupling/Pd-catalyzed Suzuki coupling to obtain π-extended arene framework has been reported.

Organic & Biomolecular 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, Category: isoquinoline.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Ding, Siyi published the artcileNNB-type tridentate boryl ligands enabling a highly active iridium catalyst for C-H borylation, Related Products of isoquinoline, the main research area is boryl ligand preparation iridium complex catalyst carbon hydrogen borylation; C–H borylation reaction; boryl ligand; iridium-catalyzed.

Boryl ligands play a very important role in catalysis because of their very high electron-donating property. NNB-type boryl anions were designed as tridentate ligands to promote aryl C-H borylation. In combination with [IrCl(COD)]2, they generate a highly active catalyst for a broad range of (hetero)arene substrates, including highly electron-rich and/or sterically hindered ones. This work provides a new NNB-type tridentate boryl ligand to support homogeneous organometallic catalysis.

Molecules 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, Related Products of isoquinoline.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Das, Arpan published the artcileNickel-Catalyzed C(sp2)-H Borylation of Arenes, Application In Synthesis of 151-10-0, the main research area is phenylimidazolidene NHC carbene cyclometalated nickel cyclooctadiene preparation crystal structure; catalyzed borylation alkyl alkoxy arene phenylimidazolidene carbene cyclometalated nickel; arylated boron compound preparation.

In this study, C(sp2)-H borylation of arenes was accomplished by a nickel catalyst, resulting in good yield. Alkyl and alkoxy arenes were successfully functionalized, affording C(sp2)-H borylated compounds It was unraveled that the well-defined abnormal N-heterocyclic carbene based Ni(II) complex breaks into Ni nanoparticles (Ni-NPs), which act as catalytically active species. A series of controlled reactions under stoichiometric conditions along with spectroscopic studies and single-crystal x-ray crystallog. study helped us to understand the formation of Ni-NPs along with formation of a boron(III) compound during this reaction.

Organometallics 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 In Synthesis of 151-10-0.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Zhao, Haiwei published the artcileTwo Ligands Transfer from Ag to Pd: En Route to (SIPr)Pd(CF2H)(X) and Its Application in One-Pot C-H Borylation/Difluoromethylation, Computed Properties of 151-10-0, the main research area is fluoromethyl palladium imidazolinylidene complex preparation crystal structure fluoromethylation catalyst; crystal structure fluoromethyl palladium arylimidazolinylidene complex; mol structure fluoromethyl palladium arylimidazolinylidene complex; hetero arene borylation difluoromethylation palladium catalyst; fluoromethylated heteroarene preparation.

A process for the concurrent transfer of both the NHC ligand and difluoromethyl group from [(SIPr)Ag(CF2H)] to PdX2 (X = Cl, OAc and OPiv) for the preparation [(SIPr)Pd(CF2H)X] complexes is described. These complexes were air-stable and easily underwent transmetalation with aryl pinacol boronate/reductive elimination to generate ArCF2H in high yields. Based on this discovery, the 1st 1-pot C-H borylation and difluoromethylation for the preparation of difluoromethylated (hetero)arenes was developed.

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, Computed Properties of 151-10-0.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Fischer, Oliver published the artcileShifted Selectivity in Protonation Enables the Mild Deuteration of Arenes Through Catalytic Amounts of Bronsted Acids in Deuterated Methanol, Product Details of C8H10O2, the main research area is Bronsted acid catalyzed deuteration arene deuterated methanol.

Taking advantage of the “”differentiating effect”” of the solvent methanol, deuterations of electron-rich aromatic systems can be carried out under mild acid catalysis and thus under far milder conditions than known so far. The exceptional functional group tolerance observed under the optimized conditions, which even includes highly acid-labile groups, results from a hitherto unexploited shifted selectivity in protonation, and enabled simple and straightforward access to complex deuterium-labeled compounds

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

Rokade, Balaji V. published the artcileSynthesis of α-Aryl-Oxindoles by Friedel-Crafts Alkylation of Arenes, Related Products of isoquinoline, the main research area is arylindole preparation; isatin diethylphosphite arene phospho Brook rearrangement Friedel Crafts reaction.

Synthesis of α-aryl-oxindoles was reported from isatin via a two-step procedure involving a phospha-Brook rearrangement and a Friedel-Crafts alkylation in a one-pot procedure. The use of 1,1,1,3,3,3-hexafluoro-2-propanol (HFIP) as solvent significantly extended the reaction substrate scope to include relatively less electron rich arenes including benzene. This new alkylation method is fast, straightforward and allows for the direct introduction of the oxindole moiety onto a range of aromatic compounds including phenols. Addnl., the application of arylated products was shown in decarboxylative asym. allylation and protonation.

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, Related Products of isoquinoline.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Kalaramna, Pratibha published the artcileTransition-Metal-Free HFIP-Mediated Organo Chalcogenylation of Arenes/Indoles with Thio-/Selenocyanates, Category: isoquinoline, the main research area is HFIP mediated chalcogenylation arene indole aryl chalcogenocyanate; chalcogenide synthesis.

We have developed a protocol for the synthesis of diaryl thio-/selenoethers by the reaction of aryl chalcogenocyanates with electron rich arenes/hetero arenes via HFIP promoted C-H activation. The reaction produces chalcogenides in good to excellent yields under mild conditions without the need of a transition metal as a catalyst. The HFIP-mediated reactions tolerated a wide range of functional groups and set the stage for the synthesis of diversely decorated chalcogenides. A mechanism involving activation of the C-H bond through hydrogen bonding is proposed.

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, Category: isoquinoline.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem