Category: isoquinoline

Wei, Bin published the artcileElectrochemical radical C(sp3)-H arylation of xanthenes with electron-rich arenes, Safety of 1,3-Dimethoxybenzene, the main research area is aryl xanthene preparation green chem; xanthene arene electrochem radical arylation.

An efficient electrochem. C(sp3)-H arylation of xanthenes, e.g., 12H-benzo[a]xanthene with arenes ArH (Ar = 4-(dimethylamino)phenyl, 1-phenylpyrrolidine, 1-benzofuran, etc.) proceeds via a radical pathway. A series of 9-aryl-9H-xanthenes, e.g., I were observed to have been produced in the presence of a carbon anode, platinum cathode, MsOH and NHPI at room temperature from available N,N-disubstituted anilines, heterocyclic aromatic hydrocarbons and anisoles. Notably, the significant advantages of this transformation were found to include mild transition-metal-catalyst-free reaction conditions, good functional group tolerance, and a highly atom- and step-economic strategy.

Organic Chemistry Frontiers 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

Hou, Zhong-Wei published the artcileElectrophotocatalytic C-H Azolation of Arenes, SDS of cas: 151-10-0, the main research area is arene azole photocatalyst electrophotocatalyst dehydrogenative cross coupling regioselective; aryl azole preparation regioselective.

An electrophotocatalytic method was developed for the dehydrogenative cross coupling of arenes with azoles employing a bicatalytic system consisting of acridinium dye and (2,2,6,6-tetramethylpiperidin-1-yl)oxyl (TEMPO). The reactions were conducted in a simple undivided cell with visible-light irradiation and requires no external chem. oxidant.

ChemElectroChem 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, SDS of cas: 151-10-0.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Garcia-Urricelqui, Ane published the artcilesyn-Selective Michael Reaction of α-Branched Aryl Acetaldehydes with Nitroolefins Promoted by Squaric Amino Acid Derived Bifunctional Broensted Bases, Recommanded Product: 4-Methoxyphenylacetic acid, the main research area is stereoselective Michael aryl acetaldehyde nitroolefin bifunctional cinchona squaric peptide.

Here we describe a direct access to 2,2,3-trisubstituted syn γ-nitroaldehydes by addition of α-branched aryl acetaldehydes to nitroolefins promoted by a cinchona based squaric acid-derived amino acid peptide. Different α-Me arylacetaldehydes react with β-aromatic and β-alkyl nitroolefins to afford the Michael adducts in high enantioselectivity and syn-selectivity. NMR experiments and DFT calculations predict the reaction to occur through the intermediacy of E-enolate. The interaction between the substrates and the catalyst follows Papai’s model, wherein an intramol. H-bond interaction in the catalyst between the NH group of one of the tert-leucines and the squaramide oxygen seems to be key for discrimination of the corresponding reaction transition states. Thus, e.g., 2-phenylpropanal + (E)-4-chloro-β-nitrostyrene → I (84%, 95:5 dr, 94% ee).

European Journal of Organic Chemistry published new progress about Aldehydes Role: SPN (Synthetic Preparation), PREP (Preparation) (γ-nitro). 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

Lan, Jin published the artcileOne-pot multi-component synthesis of N,O-acetal compounds catalyzed by D-proline at room temperature, Synthetic Route of 598-50-5, the main research area is benzaldehyde urea alkanol proline catalyst multicomponent reaction green chem; alkoxy benzylurea preparation.

A convenient method for multi-component one-pot synthesis of N,O-acetal compounds was developed using aromatic aldehydes, urea and alc. as starting materials and alc. was also used as solvent and D-proline as catalyst. A series of N,O-acetal compounds were synthesized in good yields after reacting for 30 h at room temperature

Youji Huaxue published new progress about Aliphatic alcohols, C1-4 Role: RCT (Reactant), RACT (Reactant or Reagent). 598-50-5 belongs to class isoquinoline, name is 1-Methylurea, and the molecular formula is C2H6N2O, Synthetic Route of 598-50-5.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Ding, Wei published the artcileSite-selective aromatic C-H λ3-iodanation with a cyclic iodine(III) electrophile in solution and solid phases, SDS of cas: 151-10-0, the main research area is arylbenziodoxole site selective preparation; arene benziodoxole triflate site selective aromatic iodanation.

An efficient and site-selective aromatic C-H λ3-iodanation reaction was achieved using benziodoxole triflate (BXT) as an electrophile under room temperature conditions. The reaction tolerated a variety of electron-rich arenes and heteroarenes to afford the corresponding arylbenziodoxoles I [R = 4-OMeC6H4, 2,4-di-MeC6H3, 2-thienyl, etc.] in moderate to good yields. The reaction could also be performed mechanochem. by grinding a mixture of solid arenes and BXT under solvent-free conditions. The arylbenziodoxoles could be used for various C-C and C-heteroatom bond formations and are also amenable to further modification by electrophilic halogenation. DFT calculations suggested that the present reaction proceeded via a concerted λ3-iodanation-deprotonation transition state, where the triflate anion acts as an internal base.

Chemical Science published new progress about Alkadiynes Role: SPN (Synthetic Preparation), PREP (Preparation) (unsym.). 151-10-0 belongs to class isoquinoline, name is 1,3-Dimethoxybenzene, and the molecular formula is C8H10O2, SDS of cas: 151-10-0.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Fiore, Ambra Maria published the artcileMild and efficient synthesis of secondary aromatic amines by one-pot stepwise reductive amination of arylaldehydes with nitroarenes promoted by reusable nickel nanoparticles, Name: 2,3-Dimethoxybenzaldehyde, the main research area is nitrobenzene aryl aldehyde polymer supported nickel reductive amination; secondary amine preparation.

The one-pot stepwise reductive amination of arylaldehydes with nitroarenes was described, using reusable nickel nanoparticles (Ni-pol) as catalyst and NaBH4 as mild, inexpensive and safe reducing agent. The proposed catalytic system holds several advantages such as the use of a non-precious and earth-abundant metal, the facile separation of the catalyst from the reaction mixture by centrifugation, excellent stability towards air and moisture, very mild reaction conditions, good recyclability, broad substrate scope with good to excellent yields and easy scalability. FESEM analyses indicate that the active species were cubic nanocrystals of Ni in the average cross section value of 35 nm with a quite narrow (25-45 nm) and monomodal distribution, which becomes bimodal with the recycling reactions but without agglomeration.

Molecular Catalysis published new progress about Aromatic nitro compounds 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, Name: 2,3-Dimethoxybenzaldehyde.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Yamamoto, Yoshihiko published the artcileSynthesis of difluoromethylated diarylmethanes via Fe(OTf)3-catalyzed Friedel-Crafts reaction of 2,2-difluoro-1-arylethyl phosphates, Application of 1,3-Dimethoxybenzene, the main research area is difluoromethylated diarylmethane preparation; difluoro arylethyl phosphate Friedel Crafts reaction.

The Fe(OTf)3-catalyzed Friedel-Crafts reaction of 2,2-difluoro-1-arylethyl phosphates with electron-rich (hetero)arenes afforded difluoromethylated diarylmethanes. Control experiments showed that Fe(OTf)3 behaves as the Lewis acid, and that the phosphate leaving group and o- or p-alkoxy substituents on the substrates are necessary for the Fe(OTf)3-catalyzed reaction to proceed under mild conditions.

Chemical Communications (Cambridge, United Kingdom) published new progress about Diketones, 1,3-diketones 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

Artunc, Tekin published the artcileSynthesis and antioxidant activities of phenol derivatives from 1,6-bis(dimethoxyphenyl)hexane-1,6-dione, Related Products of isoquinoline, the main research area is phenol preparation antioxidant activity; AlCl(3); Aldol condensation; Antioxidant; Enzyme inhibition; Metabolic enzymes.

Starting from the compound (3,4-dimethoxyphenyl)(2-(3,4-dimethoxyphenyl)cyclopent-1-en-1-yl)methanone, two diols I (R = H, Me; R1 = H, Me) and three tetrol derivatives (3,4-dihydroxyphenyl)(2-(3,4-dihydroxyphenyl)cyclopent-1-en-1-yl)methanone and II (X = CH2, C(O)) were synthesized. Moreover, from the reactions of 1,3-dimethoxybenzene and 1,4-dimethoxybenzene with adipoyl chloride, fifteen new along with nine known compounds were obtained. For the characterizations of compounds, spectroscopic methods such as NMR including DEPT, COSY, HMQC and HMBC experiments and X-ray diffraction were used. The antioxidant activities of novel synthesized seventeen mols. were investigated by anal. methods like ABTS.+ and DPPH. scavenging. Also, reducing power of these mols. was investigated by Fe3+, Cu2+, and [Fe3+-(TPTZ)2]3+. Some of the mols. record powerful antioxidant profile when compared to putative standards The inhibition effects of the phenols compounds against AChE and BChE activities were analyzed. Also, these phenols were found as effective inhibitors for AChE, hCA I, hCA II, and BChE with Kis in the range of 122.95 ± 18.41-351.31 ± 69.12 nM for hCA I, 62.35 ± 9.03-363.17 ± 180.1 nM for hCA II, 134.57 ± 3.99-457.43 ± 220.10 nM for AChE, and 27.06 ± 9.12-72.98 ± 9.53 nM for BChE, resp.

Bioorganic Chemistry published new progress about Acetophenones Role: RCT (Reactant), RACT (Reactant or Reagent) (methoxy). 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

Schneider, Ilona published the artcilePost-treatment of ozonated wastewater with activated carbon and biofiltration compared to membrane bioreactors: Toxicity removal in vitro and in Potamopyrgus antipodarum, Recommanded Product: Diatrizoic Acid, the main research area is phosphorous activated carbon membrane bioreactor biofiltration ozonation wastewater treatment; Advanced wastewater treatment; Endocrine disrupting chemicals; On-site testing; Reporter-gene assays; Sewage; Transformation product.

Wastewater treatment plants are major point sources of (micro)pollutant emissions and advanced wastewater treatment technologies can improve their removal capacity. While abundant data on individual advanced treatment technologies is available, there is limited knowledge regarding the removal performance of ozonation combined with multiple post-treatments and stand-alone membrane bioreactors. This is especially true for the removal of in vitro and in vivo toxicity. Therefore, we investigated the removal of 40 micropollutants and toxicity by a pilot-scale ozonation with four post-treatments: non-aerated and aerated granular activated carbon and biol. filtration. In addition, two stand-alone membrane bioreactors fed with untreated wastewater and one MBR operating with ozonated partial flow recirculation were analyzed. Aqueous and extracted samples were analyzed in vitro for (anti)estrogenic, (anti)androgenic and mutagenic effects. To assess in vivo effects, the mudsnail Potamopyrgus antipodarum was exposed in an on-site flow-through system. Multiple in vitro effects were detected in conventionally treated wastewater including estrogenic and anti-androgenic activity. Ozonation largely removed these effects, while anti-estrogenic and mutagenic effects increased suggesting the formation of toxic transformation products. These effects were significantly reduced by granular activated carbon being more effective than biol. filtration. The membrane bioreactor performed similarly to the conventional treatment while the membrane bioreactor with ozonation had a comparable removal performance like ozonation. Conventionally treated wastewater increased the growth of P. antipodarum. Ozonation reduced the reproduction indicating a potential formation of toxic transformation products. In the post-treatments, these effects were compensated or remained unaffected. The effluents of the membrane bioreactors induced reproductive toxicity. Our results show that ozonation is effective in further reducing toxicity and micropollutant concentrations However, the formation of toxicity requires a post-treatment. Here, ozonation coupled to granular activated carbon filtration seemed the most promising treatment process.

Water Research published new progress about Activated carbon fibers Role: NUU (Other Use, Unclassified), USES (Uses). 117-96-4 belongs to class isoquinoline, name is Diatrizoic Acid, and the molecular formula is C11H9I3N2O4, Recommanded Product: Diatrizoic Acid.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Martin, Ruben published the artcileAn Improved Protocol for the Pd-Catalyzed α-Arylation of Aldehydes with Aryl Halides, Synthetic Route of 1205-17-0, the main research area is aldehyde aryl bromide palladium catalyst alpha arylation; aryl chloride aldehyde palladium catalyst alpha arylation; alpha aryl aldehyde preparation; sporochnol preparation.

An improved protocol for the Pd-catalyzed α-arylation of aldehydes with aryl halides has been developed. The new catalytic system allows for the coupling of an array of substrates including challenging electron-rich aryl bromides and less reactive aryl chlorides. The utility of this method has been demonstrated in a new total synthesis of (±)-sporochnol.

Organic Letters published new progress about Aldehydes Role: SPN (Synthetic Preparation), PREP (Preparation) (α-aryl). 1205-17-0 belongs to class isoquinoline, name is 2-Methyl-3-(3,4-methylenedioxyphenyl)propionaldehyde, and the molecular formula is C11H12O3, Synthetic Route of 1205-17-0.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem