Category: naphthyridine

Lee, Haejoo published the artcileDendritic nanospace constructed by only glycerol units enhanced uptake of a fluorescent molecule in aqueous solution, Quality Control of 116-63-2, the publication is Chemical Communications (Cambridge, United Kingdom) (2012), 48(4), 546-548, database is CAplus and MEDLINE.

A polyglycerol dendrimer (PGD) of generation 2, consisting only glycerol units, constructed nanospace capable of uptake of a fluorescent mol. with a 1 : 1 stoichiometry. On the other hand, a PGD of generation 1 trapped the mol. at the outer part.

Chemical Communications (Cambridge, United Kingdom) published new progress about 116-63-2. 116-63-2 belongs to naphthyridine, auxiliary class Sulfonic acid,Amine,Naphthalene,Alcohol,Organic Pigment, name is 4-Amino-3-hydroxynaphthalene-1-sulfonic acid, and the molecular formula is C10H9NO4S, Quality Control of 116-63-2.

Referemce:
https://en.wikipedia.org/wiki/1,8-Naphthyridine,
1,8-Naphthyridine | C8H6N2 – PubChem

Sancho, Raquel published the artcilePolyproline derivatives as chiral selectors in high performance liquid chromatography: Chromatographic and conformational studies, Formula: C22H18O2, the publication is Journal of Chromatography B: Analytical Technologies in the Biomedical and Life Sciences (2008), 875(1), 93-101, database is CAplus and MEDLINE.

A proline oligopeptide-derived chiral selector (CS), containing 3,5-dimethylphenylcarbamate residues on the 4 position of the pyrrolidine rings, was bonded to a silica gel chromatog. matrix by the N-terminal group. The chromatog. behavior of the resulting chiral stationary phase (CSP) was compared with that of a CSP containing the analogous monomeric CS and that resulting from bonding of the polyproline-derived CS by the carboxy-terminal group using several solvents as mobile phase. The CSs were also studied from the conformational point of view in solution using CD and ¹³C NMR. A relation was found between the presence of an ordered conformation in the particular conditions used and increased enantioselectivity.

Journal of Chromatography B: Analytical Technologies in the Biomedical and Life Sciences published new progress about 2960-93-2. 2960-93-2 belongs to naphthyridine, auxiliary class Naphthalene,Ether,Other MOF ligands,Organic ligands for MOF materials, name is 2,2′-Dimethoxy-1,1′-binaphthalene, and the molecular formula is C22H18O2, Formula: C22H18O2.

Referemce:
https://en.wikipedia.org/wiki/1,8-Naphthyridine,
1,8-Naphthyridine | C8H6N2 – PubChem

Slovesnova, Nataliya V. published the artcileSynthesis of new water-soluble polyarene-substituted naphtho[1,2-d]oxazole-based fluorophores as fluorescent dyes and biological photosensitizers, Product Details of C10H9NO4S, the publication is Dyes and Pigments (2022), 110410, database is CAplus.

Two new water-soluble PAH-substituted (PAH – polyaromatic hydrocarbon) naphtho[1,2-d] [1,3]oxazole dyes 1-2 were synthesized and investigated for intramol. charge transfer (ICT) behavior, aggregation, and ability to fluorescent staining and photosensitization on living cancer cells of HeLa and Vero cultures. To make clear this behavior a detailed anal. of the relationship between the structure and photophys. properties 1-2 were carried out based on exptl. and computation data. As a result of the staining experiment, there was a diffuse distribution in the cytoplasm of 2-(9-anthracenyl)-containing naphthoxazole 1 as a hydrophilic fluorophore. Whereas 2-(1-pyrenyl)-derivative 2 showed accumulation in the endoplasmic reticulum, as well as addnl. distribution in lipid bilayers. Photodynamic activity of type II was confirmed for the cationic exogenous photosensitizer 2: the IC₅₀ value in the case of HeLa cell culture was 0.50μM. The radical mechanism of photodynamic activity was determined by the EPR method.

Dyes and Pigments published new progress about 116-63-2. 116-63-2 belongs to naphthyridine, auxiliary class Sulfonic acid,Amine,Naphthalene,Alcohol,Organic Pigment, name is 4-Amino-3-hydroxynaphthalene-1-sulfonic acid, and the molecular formula is C4H4OS, Product Details of C10H9NO4S.

Referemce:
https://en.wikipedia.org/wiki/1,8-Naphthyridine,
1,8-Naphthyridine | C8H6N2 – PubChem

Okamoto, Akiko published the artcileElectrophilic aromatic aroylation polycondensation synthesis of wholly aromatic polyketone composed of 2,2′-dimethoxy-1,1′-binaphthylylene moiety, Computed Properties of 2960-93-2, the publication is Reactive & Functional Polymers (2007), 67(11), 1243-1251, database is CAplus.

A wholly aromatic polyketone containing 2,2′-dimethoxy-1,1′-binaphthylylene moiety was successfully synthesized via electrophilic aromatic aroylation polycondensation with the aid of trifluoromethanesulfonic acid (TfOH) or phosphorus(V) oxide-methanesulfonic acid mixture (P₂O₅-MsOH). The polycondensation reactions employing two sets of monomers of opposite combination that should afford the same structure of repeating unit showed distinct results. The polycondensation employing 2,2′-dimethoxy-1,1′-binaphthyl (4) as the acyl-acceptant monomer proceeded to give medium-mol.-weight polymer. The polymer synthesis via transformation of biaryl 4 into the corresponding acyl-donor monomer 12 followed by polycondensation with 2,2′-dimethoxybiphenyl (1) predominated the procedure of direct usage of biaryl 4 as the acyl-acceptant monomer. Acyl-acceptant monomer has been demonstrated to play a more crucial role in determination of polymerizability than acyl-donor one.

Reactive & Functional Polymers published new progress about 2960-93-2. 2960-93-2 belongs to naphthyridine, auxiliary class Naphthalene,Ether,Other MOF ligands,Organic ligands for MOF materials, name is 2,2′-Dimethoxy-1,1′-binaphthalene, and the molecular formula is C22H18O2, Computed Properties of 2960-93-2.

Referemce:
https://en.wikipedia.org/wiki/1,8-Naphthyridine,
1,8-Naphthyridine | C8H6N2 – PubChem

Denbela, Getachew published the artcileComputational study on 4-amino-3- hydroxynaphthalene-1-sulfonic acid (AHNSA), Quality Control of 116-63-2, the publication is International Research Journal of Pure and Applied Chemistry (2017), 14(4), IRJPAC.36284/1-IRJPAC.36284/14, database is CAplus.

A computational study on 4-amino-3-hydroxynaphthalene-1-sulfonic acid (AHNSA) has been carried out to investigate formation of poly-(AHNSA), and to obtain binding structures and energies of AHNSA-Ephedrine and AHNSA-Caffeine complexes. For this purpose, the DFT/B3LYP/6-31G(D) and DFT/B3LYP/6-31+G(D) level of theories were utilized. These were investigated from anal. of their at. charge distributions, total spin d., frontier MOs, electrostatic potential maps and calculations of binding energies. Results from anal. suggest that homo-polymerization of AHNSA should involve the MOs arising between radical cations formed from the neutral monomer. The resulting data illustrated that the method was likely to be useful for homopolymerization of AHNSA. Calculated binding energies of AHNSA-Caffeine and AHNSA-Ephedrine complexes were -8.77 kcal mol^-1 and -8.36 kcal mol^-1, resp., which indicated that both complexes could be formed.

International Research Journal of Pure and Applied Chemistry published new progress about 116-63-2. 116-63-2 belongs to naphthyridine, auxiliary class Sulfonic acid,Amine,Naphthalene,Alcohol,Organic Pigment, name is 4-Amino-3-hydroxynaphthalene-1-sulfonic acid, and the molecular formula is C10H9NO4S, Quality Control of 116-63-2.

Referemce:
https://en.wikipedia.org/wiki/1,8-Naphthyridine,
1,8-Naphthyridine | C8H6N2 – PubChem

Satheesh Babu, S. published the artcileDetoxification and color removal of Congo red by a novel Dietzia sp. (DTS26) – A microcosm approach, Application of 4-Amino-3-hydroxynaphthalene-1-sulfonic acid, the publication is Ecotoxicology and Environmental Safety (2015), 52-60, database is CAplus and MEDLINE.

The present study deals with the decolorization and detoxification of Congo red (CR) by a novel marine bacterium Dietzia sp. (DTS26) isolated from Divar Island, Goa, India. The maximum decolorization of 94.5% (100 mg L^-1) was observed under static condition within 30 h at pH 8 and temperature 32±2 °C. Bacterially treated samples could enhance the light intensity by 38% and the primary production levels 5 times higher than the untreated. The strain was also able to reduce COD by 86.4% within 30 h at 100 mg L^-1 of CR dye. The degraded metabolites of CR dye were analyzed by FTIR, HPLC, GC-MS and the end product closely matches with 4-amino-3-naphthol-1-sulfonate which is comparatively less toxic than CR. Bioassay experiments conducted in treated samples for Artemia franciscana showed better survival rates (after 72 h) at higher concentration of CR (500 mg L^-1). This work suggests the potential application of DTS26 in bioremediation of dye wastes and its safe disposal into coastal environment.

Ecotoxicology and Environmental Safety published new progress about 116-63-2. 116-63-2 belongs to naphthyridine, auxiliary class Sulfonic acid,Amine,Naphthalene,Alcohol,Organic Pigment, name is 4-Amino-3-hydroxynaphthalene-1-sulfonic acid, and the molecular formula is C10H9NO4S, Application of 4-Amino-3-hydroxynaphthalene-1-sulfonic acid.

Referemce:
https://en.wikipedia.org/wiki/1,8-Naphthyridine,
1,8-Naphthyridine | C8H6N2 – PubChem

Rout, Kanhu Charan published the artcileAromatic C-nitrosation by a copper(II)-nitrosyl complex, Recommanded Product: 4-Amino-3-hydroxynaphthalene-1-sulfonic acid, the publication is Dalton Transactions (2015), 44(4), 1829-1835, database is CAplus and MEDLINE.

Copper(II) complex of 4-amino-3-hydroxynaphthalene-1-sulfonic acid was synthesized and characterized. Upon addition of nitric oxide, the copper(II) center of the complex in methanol undergoes reduction through an unstable copper(II)-nitrosyl intermediate. The formation of the intermediate was confirmed by UV-visible and FTIR spectroscopy. The reduction of the copper(II) center was accompanied with a simultaneous C-nitrosation of the aromatic ring of the ligand. The C-nitrosation product was isolated and characterized by various spectroscopic analyses.

Dalton Transactions published new progress about 116-63-2. 116-63-2 belongs to naphthyridine, auxiliary class Sulfonic acid,Amine,Naphthalene,Alcohol,Organic Pigment, name is 4-Amino-3-hydroxynaphthalene-1-sulfonic acid, and the molecular formula is C10H9NO4S, Recommanded Product: 4-Amino-3-hydroxynaphthalene-1-sulfonic acid.

Referemce:
https://en.wikipedia.org/wiki/1,8-Naphthyridine,
1,8-Naphthyridine | C8H6N2 – PubChem

Hara, Shoji published the artcileIF₅-pyridine-HF: air- and moisture-stable fluorination reagent, Quality Control of 53731-26-3, the publication is Tetrahedron (2012), 68(49), 10145-10150, database is CAplus.

IF₅-pyridine-HF, an air- and moisture-stable solid, can be used as a fluorination reagent for the introduction of fluorine atoms to the α-position of the sulfur atom in sulfides. The desulfurizing-fluorination reactions of benzylic sulfides, thioacetals, and 2-(methylthio)-1,3-dithiane derivatives were also performed using this reagent.

Tetrahedron published new progress about 53731-26-3. 53731-26-3 belongs to naphthyridine, auxiliary class Difluoromethyl,Fluoride,Naphthalene, name is 1-(Difluoromethyl)naphthalene, and the molecular formula is C11H8F2, Quality Control of 53731-26-3.

Referemce:
https://en.wikipedia.org/wiki/1,8-Naphthyridine,
1,8-Naphthyridine | C8H6N2 – PubChem

Tavana, Mahdie published the artcileOxidative coupling of 2-naphthol and 2-alkoxynaphthalene by CuCl₂ and FeCl₃ investigation of stereoselective induction effects of optically active compounds on the coupling process under solid-state conditions and ionic liquid media, HPLC of Formula: 2960-93-2, the publication is Asian Journal of Chemistry (2011), 23(7), 3097-3100, database is CAplus.

A new method for the 1,1′-binaphthalene-2,2′-diol and 1,1′-binaphthyl-2,2′-dialkylether by CuCl₂ and FeCl₃ under solid-state condition and ionic liquid was described. The stereoselectively coupling of 2-naphthol by CuCl₂ and FeCl₃ in presence of optically active amino acid is also studied. The optically purity of (S)-binaphthalene-2,2′-diol in the presence of L-2-phenylglycine by FeCl₃.H₂O in solid state and ionic liquid is 41 and 96%, resp.

Asian Journal of Chemistry published new progress about 2960-93-2. 2960-93-2 belongs to naphthyridine, auxiliary class Naphthalene,Ether,Other MOF ligands,Organic ligands for MOF materials, name is 2,2′-Dimethoxy-1,1′-binaphthalene, and the molecular formula is C11H24O3, HPLC of Formula: 2960-93-2.

Referemce:
https://en.wikipedia.org/wiki/1,8-Naphthyridine,
1,8-Naphthyridine | C8H6N2 – PubChem

Morioku, Kumika published the artcileConcurrent Formation of Carbon-Carbon Bonds and Functionalized Graphene by Oxidative Carbon-Hydrogen Coupling Reaction, Safety of 2,2′-Dimethoxy-1,1′-binaphthalene, the publication is Scientific Reports (2016), 25824pp., database is CAplus and MEDLINE.

Oxidative C-H coupling reactions were conducted using graphene oxide (GO) as an oxidant. GO showed high selectivity compared with commonly used oxidants such as (diacetoxyiodo) benzene and 2,3-dichloro-5,6-dicyano-p-benzoquinone. A mechanistic study revealed that radical species contributed to the reaction. After the oxidative coupling reaction, GO was reduced to form a material that shows electron conductivity and high specific capacitance. Therefore, this system could concurrently achieve two important reactions: C-C bond formation via C-H transformation and production of functionalized graphene.

Scientific Reports published new progress about 2960-93-2. 2960-93-2 belongs to naphthyridine, auxiliary class Naphthalene,Ether,Other MOF ligands,Organic ligands for MOF materials, name is 2,2′-Dimethoxy-1,1′-binaphthalene, and the molecular formula is C22H18O2, Safety of 2,2′-Dimethoxy-1,1′-binaphthalene.

Referemce:
https://en.wikipedia.org/wiki/1,8-Naphthyridine,
1,8-Naphthyridine | C8H6N2 – PubChem