Tag: M.W=200-250

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

Colella, Silvia published the artcileMonodispersed molecular donors for bulk heterojunction solar cells: from molecular properties to device performances, Recommanded Product: 9,10-Diethynylanthracene, the publication is Chemical Communications (Cambridge, United Kingdom) (2010), 46(34), 6273-6275, database is CAplus and MEDLINE.

The relations between the chem.-phys. properties of novel designed monodispersed donors and their photovoltaic performances are discussed. The importance of intermol. interactions is emphasized to figure out the achievement of high performing bulk hetero-junction solar cells which are solution processed.

Chemical Communications (Cambridge, United Kingdom) published new progress about 18512-55-5. 18512-55-5 belongs to naphthyridine, auxiliary class Alkynyl,Anthracene, name is 9,10-Diethynylanthracene, and the molecular formula is C18H10, Recommanded Product: 9,10-Diethynylanthracene.

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

Naher, Masnun published the artcileConjugated platinum-poly-ynes with extended arylene ethynylenes, Application of 9,10-Diethynylanthracene, the publication is Journal of Bangladesh Academy of Sciences (2015), 39(2), 195-202, database is CAplus.

The platinum-poly-yne polymers poly[trans-bis(tri-n-butylphosphine) platinum-poly(4,4′-diethynylenearylene)] (arylene = biphenylene 3 and anthracene 4) were synthesized by the condensation reaction between poly(diethynylenearylene) (arylene = biphenylene 1 and anthracene 2) and trans-[(PⁿBu₃)₂PtCl₂] in diisopropylamine and dichloromethane under nitrogen atm. in the presence of CuI catalyst. The newly synthesized platinum containing poly-yne polymers exhibit good solubility in common organic solvents. These metal linked polymers were characterized by IR, ¹H NMR and ³¹P NMR spectroscopy.

Journal of Bangladesh Academy of Sciences published new progress about 18512-55-5. 18512-55-5 belongs to naphthyridine, auxiliary class Alkynyl,Anthracene, name is 9,10-Diethynylanthracene, and the molecular formula is C18H10, Application of 9,10-Diethynylanthracene.

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

Thirugnanaselvi, S. published the artcileStructural and biological activities of (4Z)-4-(3-phenyl allylidene amino)-3-hydroxy naphthalene-1-sulfonic acid (AC) and naphthalene-1-yl-thiophene-2-ylmethyleneamine (NT) as Schiff bases, Product Details of C10H9NO4S, the publication is International Journal of Chemical Sciences (2016), 14(2), 559-569, database is CAplus.

Schiff bases (4Z)-4-(3-Ph allylidene amino)-3-hydroxy naphthalene-1-sulfonic acid (AC) and naphthalene-1-yl-thiophene-2-ylmethylene-amine (NT) derived from the condensation reaction of Analar grade 1-amino-2-naphthol 4-sulfonic acid WITH Cinnamaldehyde and naphthalene-1-ylamine and thiophene-2-carboxaldehyde, resp. was prepared The synthesis was carried out under microwave condition. This Schiff base was analyzed by infra-red and UV. The all prepared compounds were assayed for antibacterial (Bacillus subtilis MTCC 441, Staphylococcus aureus MTCC 96, Echirichia coli MTCC 1689 and Proteus vulgaris MTCC 742) and antifungal (Aspergillus sp. and Candida albicans) activities by disk diffusion method. The results indicate that all tested compounds show antibacterial activity against E. coli, as gram pos. and neg. bacteria, and antifungal activity against C. albicans. But the compounds AC having 1-OH and 1-HSO₃ substituted showed good inhibition against bacteria and fungi as compare to standard drugs.

International Journal of Chemical Sciences 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 C3H9ClOS, Product Details of C10H9NO4S.

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

Karafiloglou, Padeleimon published the artcileComparing electron (de)localization in the through benzene and anthracene charge transfer, Synthetic Route of 18512-55-5, the publication is Chemical Physics (2003), 289(2-3), 231-242, database is CAplus.

The contrasting behavior of benzene and anthracene in the through 蟺-system passing of a (+) charge is examined by considering para-diethynylbenzene and para-diethynylanthracene spacers. The (de)localization of their bonds in both neutral and cationic forms are compared by a two-electron population anal.; the electron-pair distributions are calculated in orbital spaces appropriate for population anal., as the natural AOs, in which two-electron correlations are also studied. When the spacer involves benzene, then its oxidation causes a reorganization of electron pairs towards a pronounced quinoid bond (de)localization, which induces analogous bond deformations; on the contrary, in the case of anthracene, a similar quinoid (de)localization (and the corresponding bond deformation) is impeded, due to the possibility of addnl. delocalization on its central ring. As shown, these electron-pair reorganizations are the driving force for the corresponding geometrical deformations.

Chemical Physics published new progress about 18512-55-5. 18512-55-5 belongs to naphthyridine, auxiliary class Alkynyl,Anthracene, name is 9,10-Diethynylanthracene, and the molecular formula is C18H10, Synthetic Route of 18512-55-5.

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

Wong, Wai-Yeung published the artcileSynthesis and characterization of new oligoacetylenic silanes, Formula: C18H10, the publication is New Journal of Chemistry (2002), 26(3), 354-360, database is CAplus.

Synthetic routes to a series of novel oligoacetylenic silanes with or without (hetero)aromatic bridges have been developed. The compound Me₃SiC顚咰Si(Ph)₂C顚咰SiMe₃ was first prepared, which was selectively desilylated with CaCO₃ in methanol at room temperature to afford the mono-protected bis(alkynyl)silane Me₃SiC顚咰Si(Ph)₂C顚咰H in moderate yield. Treatment of this mono-protected species with ⁿBuLi, followed by silylation with Ph₂SiCl₂, gives a good yield of Me₃SiC顚咰Si(Ph)₂C顚咰Si(Ph)₂C顚咰Si(Ph)₂C顚咰SiMe₃, with alternating silicon and acetylene units. A range of linear silicon-linked oligoalkynes containing phenylene, bithienylene and anthrylene rings, HC顚咰RC顚咰Si(Ph)₂C顚咰RC顚咰H and HC顚咰RC顚咰Si(Ph)₂C顚咰RC顚咰Si(Ph)₂C顚咰RC顚咰H (R = 1,4-phenylene, 5,5′-bithienylene or 9,10-anthrylene), were synthesized by condensation reactions of Ph₂SiCl₂ with the components obtained in situ from a HC顚咰RC顚咰H-ⁿBuLi mixture in THF and the products were isolated by chromatog. on silica. All these new compounds have been characterized by IR, ¹H and ¹³C NMR and UV/VIS spectroscopies and mass spectrometry. The single-crystal x-ray structure of HC顚咰(p-C₆H₄)C顚咰Si(Ph)₂C顚咰(p-C₆H₄)C顚咰Si(Ph)₂C顚咰(p-C₆H₄)C顚咰H has been determined, showing that two silicon atoms and six acetylene units constitute the backbone of the mol.

New Journal of Chemistry published new progress about 18512-55-5. 18512-55-5 belongs to naphthyridine, auxiliary class Alkynyl,Anthracene, name is 9,10-Diethynylanthracene, and the molecular formula is C19H14FN3O3S, Formula: C18H10.

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

Ermolaev, Nikolai L. published the artcileTris(trifluoromethyl)germylethynyl derivatives of biphenyl and anthracene: Synthesis, structure, and evidence of the intramolecular charge transfer on the germanium center, Category: naphthyridine, the publication is Journal of Organometallic Chemistry (2015), 83-95, database is CAplus.

Sym. and unsym. 4,4′-disubstituted 1,1′-biphenyl, and 9,10-anthracene derivatives with tris(trifluoromethyl)germylethynyl -C顚咰Ge(CF₃)₃ substituents have been prepared, their properties have been studied and compared with those of dimethyl(phenyl)silylethynyl -C顚咰Si(Ph)Me₂ compounds UV-visible absorption, steady-state, and time-resolved fluorescence spectra in solution for this germanium and silicon compounds have been investigated. The process of photoinduced electron-transfer from the aromatic group to the germanium center has been found in the unsym. 4-biphenyl -C顚咰Ge(CF₃)₃ mol. Anthracene derivatives with -C顚咰Ge(CF₃)₃ substituents have been characterized crystallog.

Journal of Organometallic Chemistry published new progress about 18512-55-5. 18512-55-5 belongs to naphthyridine, auxiliary class Alkynyl,Anthracene, name is 9,10-Diethynylanthracene, and the molecular formula is C18H10, Category: naphthyridine.

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

Kay, Kwang-Yol published the artcileSynthesis and electroluminescent properties of fluorene- and anthracene-derivatives containing novel tetraphenylbenzene moiety, COA of Formula: C18H10, the publication is Molecular Crystals and Liquid Crystals (2004), 167-172, database is CAplus.

2,7-Bis[(2,3,4,5-tetraphenyl)phenyl]-9,9-diethylfluorene (BTPDF) and 2,7-bis[(2,3,4,5-tetraphenyl)phenyl]-9,10-anthracene (BTPA), which consist of a diethylfluorene and an anthracene with two tetraphenylbenzene moieties, were synthesized by Diels-Alder reaction and characterized to investigate electroluminescent (EL) behavior. BTPDF and BTPA showed violet and blue photoluminescence spectra at 400 nm and 456 nm. The device of m-MTDATA (600 脜)/NPB (150 脜)/BTPDF or BTPA (300 脜)/Alq3 (300 脜)/LiF (10 脜)/Al (2000 脜) showed turn-on voltage of 9 V and 13 V and blue and green EL spectrum at 466 nm and 504 nm, resp.

Molecular Crystals and Liquid Crystals published new progress about 18512-55-5. 18512-55-5 belongs to naphthyridine, auxiliary class Alkynyl,Anthracene, name is 9,10-Diethynylanthracene, and the molecular formula is C18H10, COA of Formula: C18H10.

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

Velasco, Manuel I. published the artcileA green alternative to synthetize azo compounds, COA of Formula: C10H9NO4S, the publication is Dyes and Pigments (2011), 90(3), 259-264, database is CAplus.

Different nitrates were used as sources of nitrosonium ion to obtain diazonium salts. Diverse azo compounds were synthesized in acetonitrile giving very good yields and free of byproducts in comparison with traditional synthesis. Among the tested species, the best combination for para red synthesis was nitric acid and gaseous hydrogen chloride.

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 C15H14O, COA of Formula: C10H9NO4S.

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