Category: isoquinoline

Lin, Zhiyang published the artcileSynthesis of gem-Difluoroalkenes via Nickel-Catalyzed Reductive C-F and C-O Bond Cleavage, Product Details of C11H12O3, the main research area is alkene trifluoromethyl acetal nickel allylic defluorinative coupling reaction catalyst; difluoroalkene preparation.

By merging C-O and C-F bond cleavage in cross-electrophile coupling, we developed a method for efficient synthesis of gem-difluoroalkenes with an alkoxy-substituent on the homoallylic position using easily accessible acetals as coupling partners with α-trifluoromethyl alkenes. Remarkably, this Ni-catalyzed allylic defluorinative cross-coupling reaction demonstrates high tolerance of a wide range of sensitive functional groups and proves to be applicable in late-stage functionalization of structurally complex compounds

ACS Catalysis published new progress about Acetals Role: RCT (Reactant), RACT (Reactant or Reagent). 1205-17-0 belongs to class isoquinoline, name is 2-Methyl-3-(3,4-methylenedioxyphenyl)propionaldehyde, and the molecular formula is C11H12O3, Product Details of C11H12O3.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Kang, Qi-Kai published the artcileCatalytic SNAr Hydroxylation and Alkoxylation of Aryl Fluorides, Computed Properties of 151-10-0, the main research area is phenol preparation DFT mechanistic study; water aryl fluoride hydroxylation rhodium catalyst; ester preparation DFT mechanistic study; aryl fluoride alc alkoxylation rhodium catalyst; C−O bond formation; Meisenheimer-type intermediate; rhodium; η6-coordination.

A reliable method for accessing phenols ArOH (Ar = C6H5, 4-CH3OC6H4, 9H-fluoren-2-yl, etc.) and Ph alkyl ethers Ar1OR (Ar1 = 4-CH3C6H4, 9H-fluoren-2-yl, 1-methyl-2-oxo-2,3-dihydro-1H-indol-5-yl, etc.; R = Me, cyclohexylmethyl, oxan-4-yl, etc.) via catalytic SnAr reactions has been described. The method is applicable to a broad array of electron-rich and neutral aryl fluorides ArF and Ar1F, which are inert under classical SnAr conditions. Although the mechanism of SNAr reactions involving metal arene complexes is hypothesized to involve a stepwise pathway (addition followed by elimination), exptl. data that support this hypothesis is still under exploration. Mechanistic studies and DFT calculations suggest either a stepwise or stepwise-like energy profile. Notably, a rhodium η5-cyclohexadienyl complex intermediate with an sp3-hybridized carbon bearing both a nucleophile and a leaving group was isolated.

Angewandte Chemie, International Edition published new progress about Alcohols 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

Upadhyay, Rahul published the artcileV2O5@TiO2 Catalyzed Green and Selective Oxidation of Alcohols, Alkylbenzenes and Styrenes to Carbonyls, Synthetic Route of 86-51-1, the main research area is aldehyde ketone preparation green chem; alc alkylbenzene styrene selective oxidation vanadia titania catalyst.

The versatile application of different functional groups such as alcs. (1° and 2°), alkyl arenes, and (aryl)olefins to construct carbon-oxygen bond via oxidation is an area of intense research. Here, a reusable heterogeneous V2O5@TiO2 catalyzed selective oxidation of various functionalities utilizing different mild and eco-compatible oxidants under greener reaction conditions has been reported. The method was successfully applied for the alc. oxidation, oxidative scission of styrenes, and benzylic C-H oxidation to their corresponding aldehydes and ketones. The utilization of mild and eco-friendly oxidizing reagents such as K2S2O8, H2O2 (30% aqueous), TBHP (70% aqueous), broad substrate scope, gram-scale synthesis, and catalyst recyclability are notable features of the developed protocol.

ChemCatChem published new progress about Alcohols Role: RCT (Reactant), RACT (Reactant or Reagent). 86-51-1 belongs to class isoquinoline, name is 2,3-Dimethoxybenzaldehyde, and the molecular formula is C9H10O3, Synthetic Route of 86-51-1.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Huang, Ming published the artcileRuthenium(II) complexes with N-heterocyclic carbene-phosphine ligands for the N-alkylation of amines with alcohols, COA of Formula: C8H11NO, the main research area is secondary arylamine preparation; amine alc alkylation ruthenium phosphine ligand catalyst.

Metal hydride complexes are key intermediates for N-alkylation of amines with alcs. by the borrowing hydrogen/hydrogen autotransfer (BH/HA) strategy. Reactivity tuning of metal hydride complexes could adjust the dehydrogenation of alcs. and the hydrogenation of imines. Herein we report ruthenium(II) complexes with hetero-bidentate N-heterocyclic carbene (NHC)-phosphine ligands, which realize smart pathway selection in the N-alkylated reaction via reactivity tuning of [Ru-H] species by hetero-bidentate ligands. In particular, complex I·BArF- with a Ph wingtip group and BArF- counter anion, is shown to be one of the most efficient pre-catalysts for this transformation (temperature is as low as 70°C, neat conditions and catalyst loading is as low as 0.25 mol%). A large variety of (hetero)aromatic amines and primary alcs. were efficiently converted into mono-N-alkylated amines in good to excellent isolated yields. Notably, aliphatic amines, challenging methanol and diamines could also be transformed into the desired products. Detailed control experiments and d. functional theory (DFT) calculations provide insights to understand the mechanism and the smart pathway selection via [Ru-H] species in this process.

Organic & Biomolecular Chemistry published new progress about Alcohols Role: RCT (Reactant), RACT (Reactant or Reagent). 5961-59-1 belongs to class isoquinoline, name is 4-Methoxy-N-methylaniline, and the molecular formula is C8H11NO, COA of Formula: C8H11NO.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Huang, Ming published the artcileRoom temperature N-heterocyclic carbene manganese catalyzed selective N-alkylation of anilines with alcohols, Recommanded Product: 4-Methoxy-N-methylaniline, the main research area is secondary amine preparation; aniline alc alkylation heterocyclic carbene manganese catalyst.

The first example of room temperature non-noble metal homogeneous system catalyzed selective N-alkylation of anilines with alcs. by a bis-NHC manganese complex is presented. This system was applied to a large range of alcs. and anilines, including biol. relevant motifs and challenging methanol. Exptl. and computational studies suggest an outer-sphere mechanism for this NHC-Mn system.

Chemical Communications (Cambridge, United Kingdom) published new progress about Alcohols Role: RCT (Reactant), RACT (Reactant or Reagent). 5961-59-1 belongs to class isoquinoline, name is 4-Methoxy-N-methylaniline, and the molecular formula is C8H11NO, Recommanded Product: 4-Methoxy-N-methylaniline.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Ma, Zhuang published the artcileReusable Co-nanoparticles for general and selective N-alkylation of amines and ammonia with alcohols, SDS of cas: 5961-59-1, the main research area is doped carbon supported cobalt nanoparticle preparation; alkylated amine selective preparation; alc amine alkylation cobalt nanocatalyst; ammonia alc alkylation cobalt nanocatalyst.

A general cobalt-catalyzed N-alkylation of amines with alcs. by borrowing hydrogen methodol. to afford alkylated amines I [R = Pr-n, cyclohexyl, Ph, etc.; R1 = Ph, 4-MeC6H4, 4-FC6H4, etc.] was reported. The optimal catalyst for this transformation was prepared by pyrolysis of a specific templated material, which was generated in situ by mixing cobalt salts, nitrogen ligands and colloidal silica and subsequent removal of silica. Applying this novel Co-nanoparticle-based material, >100 primary, secondary and tertiary amines including N-methylamines and selected drug mols. were conveniently prepared starting from inexpensive and easily accessible alcs. and amines or ammonia.

Chemical Science published new progress about Alcohols Role: RCT (Reactant), RACT (Reactant or Reagent). 5961-59-1 belongs to class isoquinoline, name is 4-Methoxy-N-methylaniline, and the molecular formula is C8H11NO, SDS of cas: 5961-59-1.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Sagadevan, Arunachalam published the artcileCopper Photoredox Catalyzed A3′ Coupling of Arylamines, Terminal Alkynes, and Alcohols through a Hydrogen Atom Transfer Process, Category: isoquinoline, the main research area is propargylamine preparation; alkylaniline terminal alkyne alc three component coupling; hydrogen atom transfer photoredox copper catalyst; amines; copper; photochemistry; radicals; synthetic methods.

The first successful example of the three-component coupling of N-alkylanilines, terminal alkynes, and alcs. was achieved at room temperature by a visible-light-mediated copper-catalyzed photoredox hydrogen-atom transfer process. This method allows preparation of propargylamines I (R1 = H, 4-Me, 3-I, etc.; R2 = Me, n-Bu, Bn, etc.; R3 = C6H5, 3-MeC6H4, 3-thienyl, etc.; R4 = H, Me, c-Pr, etc.) through uniquely selective α-C-H bond activation of unactivated alkylalcs. Preliminary studies indicate that formation of α-oxy radical is operative. This approach facilitates rapid access to biol. important propargylamines from methanol as an abundant feedstock.

Angewandte Chemie, International Edition published new progress about Alcohols Role: RCT (Reactant), RACT (Reactant or Reagent). 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

Donthireddy, S. N. R. published the artcileRuthenium(II) Complexes of Heteroditopic N-Heterocyclic Carbene Ligands: Efficient Catalysts for C-N Bond Formation via a Hydrogen-Borrowing Strategy under Solvent-Free Conditions, Safety of 4-Methoxy-N-methylaniline, the main research area is ruthenium imidazolylidene triazolylidene complex preparation crystal structure benzylation catalyst; crystal structure ruthenium imidazolylidene triazolylidene complex; mol structure ruthenium imidazolylidene triazolylidene complex; benzyl alc coupling reaction benzylation aniline derivative carbeneruthenium catalyst; quinoline derivative preparation.

Both imidazol-2-ylidene (ImNHC) and 1,2,3-triazol-5-ylidene (tzNHC) have evolved to be elite groups of N-heterocyclic carbene (NHC) ligands for homogeneous catalysis. To develop efficient Ru(II)-based catalysts incorporating these ligands for C-N bond-forming reactions via H-borrowing methodol., the authors used chelating ligands integrated with ImNHC and mesoionic tzNHC donors connected via a CH2 spacer with a diverse triazole backbone. The synthesized Ru(II) complexes 3 are highly efficient for C-N bond formation across a wide range of primary amine and alc. substrates under solvent-free conditions, and among all of the complexes studied here, catalyst 3a with a mesityl substituent displayed maximum activity. Catalyst 3a is also effective for the selective mono-N-methylation of various anilines using MeOH as a coupling partner, known to be relatively more difficult than other alcs. Also, complex 3a also delivers various substituted quinolines successfully via the reaction of 2-aminobenzyl alc. with several secondary alcs. Importantly, catalyst 3a exhibited the highest activity among the reported Ru(II) complexes for both the N-benzylation of aniline [achieving a turnover number (TON) of 50000] and the realization of quinoline 8a by reacting 2-aminobenzyl alc. with 2-phenylethanol (attaining a TON of 30000). The significance of electronic tuning in the Ru(II) complexes of chelating ligands featuring a combination of ImNHC and tzNHC donors with various triazole backbones is demonstrated by applying them in diverse C-N bond-forming reactions via a H-borrowing strategy. Notably, the Ru(II) complex 3a having an N-mesityl substituent displayed the highest activity among known Ru(II) complexes for both the N-benzylation of aniline [a turnover number (TON) of 50000] and the synthesis of quinoline via the reaction of 2-aminobenzyl alc. with 2-phenylethanol (a TON of 30000).

Inorganic Chemistry published new progress about Alcohols Role: RCT (Reactant), RACT (Reactant or Reagent). 5961-59-1 belongs to class isoquinoline, name is 4-Methoxy-N-methylaniline, and the molecular formula is C8H11NO, Safety of 4-Methoxy-N-methylaniline.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Wang, Tao published the artcileA Metal-Free Direct Arene C-H Amination, COA of Formula: C8H10O2, the main research area is aryl amine preparation chemoselective; arene hydroxylamine amination.

Here, a metal-free arene e.g., mesitylene C-H amination using hydroxylamine derivatives 4-(CH3)C6H5S(O)2ON(R)R1 (R = H, Me; R1 = Me, Boc, Bn, etc.) under benign conditions was reported. A charge transfer interaction between the aminating reagents and the arene substrates enables the chemoselective amination of the arene, even in the presence of various functional groups. Oxygen was crucial for an effective conversion and its accelerating role for the electron transfer step was proven exptl. In addition, this was rationalized by a theor. study which indicated the involvement of a dioxygen-bridged complex with a “”Sandwich-like”” arrangement of the aromatic starting materials and the aminating agents at the dioxygen mol.

Advanced Synthesis & Catalysis published new progress about Alcohols 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, COA of Formula: C8H10O2.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Wang, Tao published the artcileA Metal-Free Direct Arene C-H Amination, Related Products of isoquinoline, the main research area is aryl amine preparation chemoselective; arene hydroxylamine amination.

Here, a metal-free arene e.g., mesitylene C-H amination using hydroxylamine derivatives 4-(CH3)C6H5S(O)2ON(R)R1 (R = H, Me; R1 = Me, Boc, Bn, etc.) under benign conditions was reported. A charge transfer interaction between the aminating reagents and the arene substrates enables the chemoselective amination of the arene, even in the presence of various functional groups. Oxygen was crucial for an effective conversion and its accelerating role for the electron transfer step was proven exptl. In addition, this was rationalized by a theor. study which indicated the involvement of a dioxygen-bridged complex with a “”Sandwich-like”” arrangement of the aromatic starting materials and the aminating agents at the dioxygen mol.

Advanced Synthesis & Catalysis published new progress about Alcohols Role: RCT (Reactant), RACT (Reactant or Reagent). 5961-59-1 belongs to class isoquinoline, name is 4-Methoxy-N-methylaniline, and the molecular formula is C8H11NO, Related Products of isoquinoline.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem