Day: November 14, 2022

Mastachi-Loza, Salvador published the artcileSynthesis of 4,5,6,7-tetrahydrobenzoxazol-2-ones by a highly regioselective Diels-Alder cycloaddition of exo-oxazolidin-2-one dienes with chalcones, Recommanded Product: 2,3-Dimethoxybenzaldehyde, the main research area is tetrahydro benzoxazolone regioselective diastereoselective preparation; exo oxazolidinone diene chalcone Diels Alder cycloaddition.

The synthesis of 4,5,6,7-tetrahydrobenzoxazol-2-ones I [R1 = C6H5, 4-MeOC6H4, 2-thienyl, etc.; R2 = C6H5, 4-MeOC6H4, 4-ClC6H4; stereo = R or S] and II [R1 = C6H5, 4-MeSC6H4, 4-MeOC6H4, 2,4-di-ClC6H3; R3 = C6H5, 4-MeC6H4, 4-ClC6H4, 3-MeOC6H4] was reported. They were obtained in moderate to good yields by a highly regio- and stereoselective Diels-Alder cycloaddition of N-substituted exo-oxazolidin-2-one dienes with chalcones or bis-chalcones as dienophiles.

Tetrahedron Letters published new progress about Benzoxazoles Role: PRP (Properties), SPN (Synthetic Preparation), PREP (Preparation). 86-51-1 belongs to class isoquinoline, name is 2,3-Dimethoxybenzaldehyde, and the molecular formula is C9H10O3, Recommanded Product: 2,3-Dimethoxybenzaldehyde.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Ji, Wangqin published the artcileCopper-catalyzed cyclization reaction: synthesis of trifluoromethylated indolinyl ketones, Quality Control of 5961-59-1, the main research area is aryl fluorobutenone alkylaniline copper catalyst diastereoselective cyclization; aroyl fluoroalkyl alkylindole preparation.

A novel, simple, effective and rapid synthetic method to construct the C-2 trifluoromethylated indolinyl ketones via a copper-catalyzed cyclization reaction between N-alkylanilines and β-(trifluoromethyl)-α,β-unsaturated enones was developed. The results of the control experiments showed that the reaction may involve a radical mechanism by a single-electron transfer process. Moreover, a broad substrate scope and good functional groups, high diastereoselectivities (dr, up to >20 : 1) as well as gram-scale synthesis make this approach highly attractive.

Chemical Communications (Cambridge, United Kingdom) published new progress about Aryl ketones Role: PRP (Properties), SPN (Synthetic Preparation), PREP (Preparation). 5961-59-1 belongs to class isoquinoline, name is 4-Methoxy-N-methylaniline, and the molecular formula is C8H11NO, Quality Control of 5961-59-1.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Wang, Xuefeng published the artcileAccess to Sulfoxides under NHC/Photocatalysis via a Radical Pathway, Product Details of C11H12O3, the main research area is sulfoxide preparation photochem; sulfinic acid Hantzsch ester Meyer nitrile radical coupling reaction.

A photocatalyzed transformation from sulfinic acids to sulfoxides under visible-light irradiation in the presence of N-heterocyclic carbene is established. Various alkyl groups from four-substituted Hantzsch esters or Meyer nitriles are smoothly converted to the corresponding sulfoxides through a radical coupling pathway in the presence of 1,1-carbonyldiimidazole. This method allows sulfoxide synthesis to refrain from relying on the oxidation of sulfides and provides an alternative route for the preparation of sulfoxides.

Organic Letters published new progress about Aromatic compounds, sulfoxides Role: SPN (Synthetic Preparation), PREP (Preparation). 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

Johnson, James A. published the artcileDiscovery of a Hydroxypyridinone APJ Receptor Agonist as a Clinical Candidate, Quality Control of 151-10-0, the main research area is APJ receptor agonist pharmacokinetic oral bioavailability pharmacodynamic.

Apelin-13 is an endogenous peptidic agonist of the apelin receptor (APJ) receptor with the potential for improving cardiac function in heart failure patients. However, the low plasma stability of apelin-13 necessitates continuous i.v. infusion for therapeutic use. There are several approaches to increase the stability of apelin-13 including attachment of pharmacokinetic enhancing groups, stabilized peptides, and Fc-fusion approaches. We sought a small-mol. APJ receptor agonist approach to target a compound with a pharmacokinetic profile amenable for chronic oral administration. This manuscript describes sequential optimization of the pyrimidinone series, leading to pyridinone 14(I), with in vitro potency equivalent to the endogenous ligand apelin-13 and with an excellent oral bioavailability and PK profile in multiple preclin. species. Compound 14 exhibited robust pharmacodynamic effects similar to apelin-13 in an acute rat pressure-volume loop model and was advanced as a clin. candidate.

Journal of Medicinal Chemistry published new progress about Apelin receptors Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 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

Shreiber, Scott T. published the artcileSolvated Nickel Complexes as Stoichiometric and Catalytic Perfluoroalkylation Agents, Formula: C8H10O2, the main research area is nickel perfluoroalkyl complex preparation coupling iodonium diazonium fluoroalkylation; perfluoroalkylarene preparation fluoroalkylation iodonium diazonium nickelate complex; crystal mol structure nickel perfluoroalkyl complex; catalysis; fluorine; nickel; perfluoroalkylation; trifluoromethylation.

The acetonitrile-solvated [(MeCN)Ni(C2F5)3]- was prepared in order to compare and contrast its reactivity with the known [(MeCN)Ni(CF3)3]- towards organic electrophiles. Both [(MeCN)Ni(CF3)3]- and [(MeCN)Ni(C2F5)3]- successfully react with aryl iodonium and diazonium salts as well as alkynyl iodonium salts to give fluoroalkylated organic products. Electrochem. anal. of [(MeCN)NiII(C2F5)3]- suggests that, upon electro-oxidation to [(MeCN)nNiIII(C2F5)3], reductive homolysis of a perfluoroethyl radical occurs, with the concomitant formation of [(MeCN)2NiII(C2F5)2]. Catalytic C-H trifluoromethylations of electron-rich arenes were successfully achieved using either [(MeCN)Ni(CF3)3]- or the related [Ni(CF3)4]2-. Stoichiometric reactions of the solvated nickel complexes reveal that “”ligandless”” nickel is exceptionally capable of serving as reservoir of CF3 groups under catalytically relevant conditions.

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

Rajvanshi, Sandeep Kumar published the artcileIdentification of bioactive phytometabolites in essential oil of African marigold (Tagetes erecta L.) using FT-IR & DART-MS techniques, COA of Formula: C8H10O2, the main research area is Tagetes erecta essential oil bioactive phytometabolite FTIR DARTMS.

Tagetes erecta L. belongs to family Asteraceae, most widely used as ornamental plant, has cosmetic as well as medicines values. Since oil extracted from its plant parts for secondary metabolites present in the plant such as alkaloids, steroids, tannins and phenolic compounds, flavonoids, etc. Oil was extracted from flowers, as well as leaves marigold (Tagetes erecta L.) in fresh form and after processing by solvent extraction method using n-hexane as solvent. Samples were subjected to Fourier transform IR spectroscopy (FT-IR) where spectra of samples have shown the presence of major functional groups viz., alkanes, aromatic, phenols, aliphatic, nitro compounds and amines, etc at wavelength of 3400 to 3480 cm-1 (alc. & phenols), 2850 to 2990 cm-1 (alkanes), 1050 to 1200 cm-1 (aliphatic amines) and 720 to 890 cm-1 (aromatics). Presence of more number of peaks shows the presence of more number of bioactive compounds These samples were further validated by DART Mass Spectrometry where peak at m/z 136 correspond to terpenoids, 151 (ketone), 169 (phenols), 183 (alc.), etc. Presence of phenolic compound galic acid in the samples proves the antioxidant activity of the samples.

Annals of Plant Sciences published new progress about Aliphatic amines Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 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

Arya, Gunjan H. published the artcileThe genetic basis for variation in olfactory behavior in Drosophila melanogaster, Application In Synthesis of 1205-17-0, the main research area is Obp83g Or7a lr40a Gr57a polymorphism olfactory behavior Drosophila; Drosophila melanogaster Genetic Reference Panel; behavioral genetics; genetic networks; genome-wide association analysis; olfactory behavior.

The genetic underpinnings that contribute to variation in olfactory perception are not fully understood. To explore the genetic basis of variation in olfactory perception, we measured behavioral responses to 14 chem. diverse naturally occurring odorants in 260400 flies from 186 lines of the Drosophila melanogaster Genetic Reference Panel, a population of inbred wild-derived lines with sequenced genomes. We observed variation in olfactory behavior for all odorants. Low to moderate broad-sense heritabilities and the large number of tests for genotype-olfactory phenotype association performed precluded any individual variant from reaching formal significance. However, the top variants (nominal P < 5 × 10-5) were highly enriched for genes involved in nervous system development and function, as expected for a behavioral trait. Further, pathway enrichment analyses showed that genes tagged by the top variants included components of networks centered on cyclic guanosine monophosphate and inositol triphosphate signaling, growth factor signaling, Rho signaling, axon guidance, and regulation of neural connectivity. Functional validation with RNAi and mutations showed that 15 out of 17 genes tested indeed affect olfactory behavior. Our results show that in addition to chemoreceptors, variation in olfactory perception depends on polymorphisms that can result in subtle variations in synaptic connectivity within the nervous system. Chemical Senses published new progress about 5-HT1A receptors Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 1205-17-0 belongs to class isoquinoline, name is 2-Methyl-3-(3,4-methylenedioxyphenyl)propionaldehyde, and the molecular formula is C11H12O3, Application In Synthesis of 1205-17-0.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Jeong, Clara H. published the artcileThe impact of iodinated X-ray contrast agents on formation and toxicity of disinfection by-products in drinking water, SDS of cas: 117-96-4, the main research area is iodinated contrast agent toxicity disinfection byproduct drinking water; Disinfection by-products; Iodinated X-ray contrast media; Iodo-DBPs.

The presence of iodinated X-ray contrast media (ICM) in source waters is of high concern to public health because of their potential to generate highly toxic disinfection byproducts (DBPs). The objective of this study was to determine the impact of ICM in source waters and the type of disinfectant on the overall toxicity of DBP mixtures and to determine which ICM and reaction conditions give rise to toxic byproducts. Source waters collected from Akron, OH were treated with five different ICMs, including iopamidol, iopromide, iohexol, diatrizoate and iomeprol, with or without chlorine or chloramine disinfection. The reaction product mixtures were concentrated with XAD resins and the mammalian cell cytotoxicity and genotoxicity of the reaction mixture concentrates was measured. Water containing iopamidol generated an enhanced level of mammalian cell cytotoxicity and genotoxicity after disinfection. While chlorine disinfection with iopamidol resulted in the highest cytotoxicity overall, the relative iopamidol-mediated increase in toxicity was greater when chloramine was used as the disinfectant compared with chlorine. Four other ICMs (iopromide, iohexol, diatrizoate, and iomeprol) expressed some cytotoxicity over the control without any disinfection, and induced higher cytotoxicity when chlorinated. Only iohexol enhanced genotoxicity compared to the chlorinated source water.

Journal of Environmental Sciences (Beijing, China) published new progress about Cytotoxicity Role: OCU (Occurrence, Unclassified), POL (Pollutant), OCCU (Occurrence). 117-96-4 belongs to class isoquinoline, name is Diatrizoic Acid, and the molecular formula is C11H9I3N2O4, SDS of cas: 117-96-4.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Baguia, Hajar published the artcile[(DPEPhos)(bcp)Cu]PF6: a general and broadly applicable copper-based photoredox catalyst, Related Products of isoquinoline, the main research area is diphosphine copper bathocuprione complex preparation catalyst radical cyclization arylation; radical cyclization organic halide diphosphine copper bathocuprione complex catalyst; arylation heteroarene diphosphine copper bathocuprione complex catalyst.

The authors’ group recently reported the use of [(DPEPhos)(bcp)Cu]PF6 as a general Cu-based photoredox catalyst which proved efficient to promote the activation of a broad variety of organic halides, including unactivated ones. These can then participate in various radical transformations such as reduction and cyclization reactions, as well as in the direct arylation of several (hetero)arenes. These transformations provide a straightforward access to a range of small mols. of interest in synthetic chem., as well as to biol. active natural products. Altogether, [(DPEPhos)(bcp)Cu]PF6 acts as a convenient photoredox catalyst which appears to be an attractive, cheap and complementary alternative to the state-of-the-art Ir- and Ru-based photoredox catalysts. Here, the authors report a detailed protocol for the synthesis of [(DPEPhos)(bcp)Cu]PF6, as well as NMR and spectroscopic characterizations, and the authors illustrate its use in synthetic chem. for the direct arylation of (hetero)arenes and radical cyclization of organic halides. In particular, the direct arylation of N-methylpyrrole with 4-iodobenzonitrile to afford 4-(1-methyl-1H-pyrrol-2-yl)benzonitrile and the radical cyclization of N-benzoyl-N-[(2-iodoquinolin-3-yl)methyl]cyanamide to afford natural product luotonin A are detailed. The scope and limitations of this Cu-based photoredox catalyst are also briefly discussed.

Journal of Visualized Experiments published new progress about Aromatic hydrocarbons Role: RCT (Reactant), RACT (Reactant or Reagent) (heteroarenes). 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

Xia, Yujia published the artcileNH4I-promoted oxidative formation of benzothiazoles and thiazoles from arylacetic acids and phenylalanines with elemental sulfur, Name: 4-Methoxyphenylacetic acid, the main research area is arylbenzothiazole preparation; arylacetic acid amine sulfur oxidative cyclization catalyst ammonium iodide; benzyl arylthiazole preparation; aryl alanine sulfur oxidative cyclization catalyst ammonium iodide.

A NH4I/K3PO4-based catalytic system had been established to enable oxidative formation of thiazole compounds I [R1 = H, MeO; R2 = H, MeO, t-Bu; R3 = H, MeO; R1R2 = HC=CHCH=CH, HC=CHCH=N, HC=CHC(Br)=CH, HC=CHC(4-methoxyphenyl)=CH; R2R3 = OCH2O; Ar = Ph, 3-pyridyl, 2-naphthyl, etc.], II [Ar = Ph, 4-MeC6H4, 2,4-di-ClC6H3, etc.] from arylacetic acids and phenylalanines with elemental sulfur. While the three-component reaction of anilines or β-naphthylamines with arylacetic acids and elemental sulfur afforded benzo[2,1-d]thiazoles I [R1 = H, MeO; R2 = H, MeO, t-Bu; R3 = H, MeO; R2R3 = OCH2O; Ar = Ph] and naphtho[2,1-d]thiazoles, I [R1R2 = HC=CHCH=CH, HC=CHCH=N, HC=CHC(Br)=CH, HC=CHC(4-methoxyphenyl)=CH; Ar = Ph, 3-pyridyl, 2-naphthyl, etc.] the annulation of phenylalanines with elemental sulfur produces 2-benzyl II [Ar = Ph] and 2-benzoylthiazoles. This work well complements previous three-component annulations of benzothiazoles from other coupling partners.

Organic & Biomolecular Chemistry published new progress about Amino acids, analogs Role: RCT (Reactant), RACT (Reactant or Reagent) (phenylalanine). 104-01-8 belongs to class isoquinoline, name is 4-Methoxyphenylacetic acid, and the molecular formula is C9H10O3, Name: 4-Methoxyphenylacetic acid.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem