Day: November 11, 2022

Muralirajan, Krishnamoorthy published the artcileExploring the Structure and Performance of Cd-Chalcogenide Photocatalysts in Selective Trifluoromethylation, Safety of 2-Methyl-3-(3,4-methylenedioxyphenyl)propionaldehyde, the main research area is trifluoromethylated arene oxindole alkene preparation photochem; heteroarene alkene selective trifluoromethylation cadmium selenide catalyst.

The field of heterogeneous photoredox catalysis has grown substantially and impacted organic synthesis because of the affordability and reusability of catalysts. This study reports radical trifluoromethylation with Cd-chalcogenide semiconductors. Cd semiconductors, particularly CdSe, are readily available, com., visible-light-responsive, heterogeneous photocatalysts. The potential of readily available Cd semiconductors, particularly CdSe, is confirmed by their increased photocatalytic activity toward trifluoromethylation with various substrates, such as (hetero)arenes and vinylic amides/acids, via addition, cyclization, and decarboxylation under visible light. The economic significance of this strategy is also highlighted through the scalable synthesis of biol. active mols. followed by catalyst reuse. Moreover, these catalysts are relatively inexpensive compared with transition metal-based homogeneous photocatalysts, presently used in organic synthesis.

ACS Catalysis published new progress about Cyclization. 1205-17-0 belongs to class isoquinoline, name is 2-Methyl-3-(3,4-methylenedioxyphenyl)propionaldehyde, and the molecular formula is C11H12O3, Safety of 2-Methyl-3-(3,4-methylenedioxyphenyl)propionaldehyde.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Feng, Yunxia published the artcileIntermolecular alkene arylcyanation using BnSCN as a cyanide source via a reductive strategy: access to 3,3-disubstituted oxindoles, Application of 4-Methoxyphenylacetic acid, the main research area is oxindole preparation; alkene benzyl thiocyanate reductive intermol arylcyanation nickel catalyst.

Herein, a nickel-catalyzed two-component reductive arylcyanation of aryl (pseudo)halide tethered alkenes using benzyl thiocyanate as the cyanide source via C-S bond activation is developed. Using this protocol, a wide scope of 3,3-disubstituted oxindoles bearing all-carbon quaternary stereocenters are accessible in moderate to excellent yields. The preliminary mechanistic investigations reveal that a Ni(I)/Ni(III) process might be involved in the mechanism.

Organic Chemistry Frontiers published new progress about Cyanation. 104-01-8 belongs to class isoquinoline, name is 4-Methoxyphenylacetic acid, and the molecular formula is C9H10O3, Application of 4-Methoxyphenylacetic acid.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Ma, Biao published the artcileEfficient Synthesis of Spirooxindole Pyrrolones by a Rhodium(III)-Catalyzed C-H Activation/Carbene Insertion/Lossen Rearrangement Sequence, Recommanded Product: 4-Methoxyphenylacetic acid, the main research area is olefin diazo oxindole rhodium catalyst domino annulation bond activation; spirooxindole pyrrolone preparation; carbene insertion Lossen rearrangement nucleophilic addition; C−H activation; Lossen rearrangement; olefins; oxindoles; rhodium catalysis.

A rhodium(III)-catalyzed domino annulation of simple olefins with diazo oxindoles to give spirooxindole pyrrolone products is described. This reaction can be formally viewed as the result of an anomalous tandem C-H activation, carbene insertion, Lossen rearrangement, and a nucleophilic addition process. The potential utility of this reaction was further demonstrated by the late-stage diversification of drug mols.

Angewandte Chemie, International Edition published new progress about C-H bond activation. 104-01-8 belongs to class isoquinoline, name is 4-Methoxyphenylacetic acid, and the molecular formula is C9H10O3, Recommanded Product: 4-Methoxyphenylacetic acid.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Liu, Shuai published the artcileElectrochemical aziridination of tetrasubstituted alkenes with ammonia, Application of 4-Methoxyphenylacetic acid, the main research area is aziridine preparation; alkene ammonia electrochem aziridination.

Ammonia (NH3) is an ideal nitrogen source in terms of availability, reactivity, safety, atom economy, environmental compatibility, and ease of isolation. However, its utility for amine synthesis is limited by its high bond dissociation energy, its strong coordination ability, and the difference between its reactivity and that of the product amines. Herein, authors reported the first electrochem. protocol for direct syntheses of unprotected tetrasubstituted aziridines with NH3 and alkenes in the absence of an oxidant, which are highly challenging to achieve by other methods. The combination of graphite felt as the anode material and MeOH as the solvent was the key to the success of the protocol, and the effects of these factors were investigated by means of cyclic voltammetry and d. functional theory calculations

CCS Chemistry published new progress about Aziridination. 104-01-8 belongs to class isoquinoline, name is 4-Methoxyphenylacetic acid, and the molecular formula is C9H10O3, Application of 4-Methoxyphenylacetic acid.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Luo, Xiai published the artcilePalladium-Catalyzed Domino Heck/C-H Activation/Decarboxylation: A Rapid Entry to Fused Isoquinolinediones and Isoquinolinones, Category: isoquinoline, the main research area is fused isoquinolinedione isoquinolinone preparation regioselective; alkene aryl iodide bromobenzoic acid domino cyclization palladium catalyst; carbon hydrogen activation Heck reaction decarboxylation.

A new palladium-catalyzed tandem cyclization of various alkene-tethered aryl iodides has been presented. In this protocol, o-bromobenzoic acids are employed as coupling parters to achieve the insertion of aromatic rings by the cleavage of C(sp2)-Br and decarboxylation, thus assembling various dibenzoisoquinolinediones and dibenzoisoquinolinones. In addition, a seven-membered ring can be constructed by the use of 8-bromo-1-naphthoic acid. Notably, this approach enables regioselective product formation and features broad substrate scope.

Organic Letters published new progress about Aryl iodides Role: RCT (Reactant), SPN (Synthetic Preparation), RACT (Reactant or Reagent), PREP (Preparation) (alkene-tethered). 104-01-8 belongs to class isoquinoline, name is 4-Methoxyphenylacetic acid, and the molecular formula is C9H10O3, Category: isoquinoline.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Cheng, Hanchao published the artcilePhotoinduced Hydroarylation and Cyclization of Alkenes with Luminescent Platinum(II) Complexes, Computed Properties of 5961-59-1, the main research area is dihydroquinolinone preparation photoinduced hydroarylation cyclization aryl alkene halide; aryl halides; hydroarylation; intramolecular cyclization; photocatalysis; platinum.

Photoinduced hydroarylation of alkenes is an appealing synthetic strategy for arene functionalization. Herein, we demonstrated that aryl radicals generated from electron-deficient aryl chlorides/bromides could be trapped by an array of terminal/internal aryl alkenes in the presence of [Pt(ON̂ĈN̂)] under visible-light (410 nm) irradiation, affording anti-Markonikov hydroarylated compounds in up to 95% yield. Besides, a protocol for [Pt(ON̂ĈN̂)]-catalyzed intramol. photocyclization of acrylanilides to give structurally diverse 3,4-dihydroquinolinones has been developed.

Angewandte Chemie, International Edition published new progress about Aryl alkenes Role: RCT (Reactant), SPN (Synthetic Preparation), RACT (Reactant or Reagent), PREP (Preparation). 5961-59-1 belongs to class isoquinoline, name is 4-Methoxy-N-methylaniline, and the molecular formula is C8H11NO, Computed Properties of 5961-59-1.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Shigeno, Masanori published the artcileCatalytic Amination of β-(Hetero)arylethyl Ethers by Phosphazene Base t-Bu-P4, Category: isoquinoline, the main research area is arylethyl ether amine amination phosphazene; amine preparation; phosphazene amination catalyst.

The catalytic amination of β-(hetero)arylethyl ethers with amines using the organic superbase t-Bu-P4 to obtain β-(hetero)arylethylamines, is described. The reaction has a broad substrate scope and allows the transformations of electron-deficient and electron-neutral β-(hetero)arylethyl ethers with various amines including pyrrole, N-alkylaniline, diphenylamine, aniline, indole, and indoline derivatives Mechanistic studies indicate a two-reaction pathway of MeOH elimination from the substrate to form a (hetero)arylalkene followed by the hydroamination of the alkene.

Organic Letters published new progress about Amination. 5961-59-1 belongs to class isoquinoline, name is 4-Methoxy-N-methylaniline, and the molecular formula is C8H11NO, Category: isoquinoline.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Munnuri, Sailu published the artcileCu(II)-Mediated N-H and N-Alkyl Aryl Amination and Olefin Aziridination, COA of Formula: C8H10O2, the main research area is aniline regioselective green preparation; aziridine diastereoselective green preparation; copper catalyst regioselective amination arene diastereoselective aziridination alkene.

The combination of Cu(OTf)2 and 1,10-phenanthroline in hexafluoroisopropanol (HFIP) was used for the green and regioselective amination of arenes with hydroxylamine-O-sulfonic acid, N-cyclohexylhydroxylamine-O-sulfonic acid, and O-(mesitylsulfonyl)-N-methylhydroxylamine at ambient temperature Under similar conditions, alkenes underwent diastereoselective aziridination with hydroxylamine-O-sulfonic acid, N-cyclohexylhydroxylamine-O-sulfonic acid, and O-(mesitylsulfonyl)-N-methylhydroxylamine at ambient temperature using CuCl2 and 1,10-phenanthroline as catalysts. The reactions provide alternatives to rhodium-catalyzed aziridinations and in some cases provide products with different regioselectivities than related rhodium- and iron-catalyzed reactions.

Organic Letters published new progress about Amination catalysts (regioselective). 151-10-0 belongs to class isoquinoline, name is 1,3-Dimethoxybenzene, and the molecular formula is C8H10O2, COA of Formula: C8H10O2.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Xu, Zekun published the artcilePhotoredox Catalyzed Sulfonylation of Multisubstituted Allenes with Ru(bpy)3Cl2 or Rhodamine B, Formula: C9H10O3, the main research area is methyl phenylpropenyl sulfonylbenzene diastereoselective regioselective preparation; multisubstituted allene toluenesulfonic acid sulfonylation ruthenium photoredox catalyst; ethyl phenyl tosylbutenoate diastereoselective regioselective preparation; allenic ester toluenesulfonic acid rhodamine B photoredox catalyst sulfonylation.

A highly regio- and stereoselective sulfonylation of allenes was developed that provided direct access to α,β-substituted unsaturated sulfones I [R1 = Ph, 4-ClC6H4, 4-MeC6H4, etc.; R2 = H, Ph; R3 = Ph, 4-MeC6H4, 4-ClC6H4, etc.; R4 = Me, CH2C(O)OEt]. By means of visible-light photoredox catalysis, the free radicals produced by p-toluenesulfonic acid reacted with multisubstituted allenes to obtain Markovnikov-type vinyl sulfones with Ru(bpy)3Cl2 or Rhodamine B as photocatalyst. The yield of this reaction could reach up to 91%. A series of unsaturated sulfones would be used for further transformation to some valuable compounds

Journal of Organometallic Chemistry published new progress about Allenes Role: SPN (Synthetic Preparation), PREP (Preparation) (aryl). 104-01-8 belongs to class isoquinoline, name is 4-Methoxyphenylacetic acid, and the molecular formula is C9H10O3, Formula: C9H10O3.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Wu, Qiang published the artcileIron-catalyzed deconstructive alkylation through chlorine radical induced C-C single bond cleavage under visible light, SDS of cas: 1205-17-0, the main research area is dinitrile ketone preparation; alkene alc alkylation iron catalyst.

Herein, a chlorine radical-induced deconstructive C-C bond alkylation with alcs. and alkenes catalyzed by iron salts was reported for the first time. Readily available alcs. and various electron-deficient alkenes were tolerated. Late-stage and large-scale reactions proceed smoothly. This catalyst system showed potential for diversified deconstructive functionalization of simple C-C bonds.

Chemical Communications (Cambridge, United Kingdom) published new progress about Alkylation. 1205-17-0 belongs to class isoquinoline, name is 2-Methyl-3-(3,4-methylenedioxyphenyl)propionaldehyde, and the molecular formula is C11H12O3, SDS of cas: 1205-17-0.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem