نتایج جستجو برای: quinoline

تعداد نتایج: 3574  

Journal: :Acta crystallographica. Section C, Structural chemistry 2014
Alba Montoya Braulio Insuasty Justo Cobo Christopher Glidewell

In the title compound, C26H20ClNO3, the quinoline fragment is nearly orthogonal to the adjacent aryl ring, while the rest of the molecular skeleton is close to being planar. The crystal structure contains no hydrogen bonds of any sort, but there are two π-π stacking interactions present. One, involving the quinoline ring, links molecules related by inversion, while the other, involving the two ...

1999
M. Sekar Rajendra Prasad

The reaction of alkaline 2,4-dihydroxyquinoline 1 and 1-tetralone 2 in 2% sodium hydrox­ ide solution with vinyl acetate afforded a brown solid 3, which on treatment with phospho­ rous oxychloride yielded 2,4-dichloro-3-[l’-(l-chloro-naphth-2-yl)ethyl]quinoline (4). The same reaction of 1 and chromanone 7 with vinyl acetate afforded 2,4-dichloro-3-[l’-(4-chloro2-methyl-chromen-3-yl)ethyl]quinol...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2011
alireza hasaninejad abdolkarim zare mohammad ali zolfigol marzieh abdeshah arash ghaderi

a highly efficient, simple and green solvent-free protocol for the preparation of poly-substituted quinolines via friedländer hetero-annulation reaction between 2-aminoaryl ketones and carbonyl compounds in the presence of silica-supported p2o5 (p2o5 / sio2) is described. in this method, the title compounds are obtained in high to excellent yields and in short reaction times.

Journal: :Molecules 2012
Tomas Gonec Pavel Bobal Josef Sujan Matus Pesko Jiahui Guo Katarina Kralova Lenka Pavlacka Libor Vesely Eva Kreckova Jiri Kos Aidan Coffey Peter Kollar Ales Imramovsky Lukas Placek Josef Jampilek

In this study, a series of thirty-five substituted quinoline-2-carboxamides and thirty-three substituted naphthalene-2-carboxamides were prepared and characterized. They were tested for their activity related to the inhibition of photosynthetic electron transport (PET) in spinach (Spinacia oleracea L.) chloroplasts. Primary in vitro screening of the synthesized compounds was also performed agai...

2010
Seik Weng Ng

The K atom in the title complex, [K(C(10)H(6)NO(2))(C(10)H(7)NO(2))(3)], lies on a twofold rotation axis that relates one N,O-chelating quinoline-2-carb-oxy-lic acid to the other; their N and O atoms are cis to each other in the distorted octa-hedral coordination geometry. The K atom is also coordinated by another monodentate quinoline-2-carb-oxy-lic acid; the acid is disordered with respect to...

2012
Kwang Ha

In the title compound, [PtCl(2)(C(9)H(7)N)(2)]·CH(3)NO(2), the Pt(II) cation is four-coordinated in an essentially square-planar environment by two N atoms from two quinoline ligands and two Cl(-) anions. One of the nearly planar quinoline ligands [maximum deviations = 0.042 (6) and 0.018 (7) Å] is almost perpendicular to the PtCl(2)N(2) unit [maximum deviation = 0.024 (3) Å], making a dihedral...

2011
S. Sarveswari V. Vijayakumar Seik Weng Ng Edward R. T. Tiekink

Two independent mol-ecules comprise the asymmetric unit of the title chalcone, C(25)H(17)Cl(2)NO, and while each has an E configuration about the ethyl-ene double bond, they differ in the relative orientations of the carbonyl and ethyl-ene double bonds within the prop-2-en-1-one residues, i.e. anti and syn. For each mol-ecule, the benzene [dihedral angles = 71.04 (9) and 73.34 (12)°] and prop-2...

2015
David E. Stephens Johant Lakey-Beitia Abdurrahman C. Atesin Tülay A. Ateşin Gabriel Chavez Hadi D. Arman Oleg V. Larionov

We report herein a palladium-catalyzed C-H arylation of quinoline N-oxides that proceeds with high selectivity in favor of the C8-isomer. This site-selectivity is unusual for palladium, since all of the hitherto described methods of palladium-catalyzed C-H functionalization of quinoline N-oxides are highly C2-selective. The reaction exhibits a broad synthetic scope with respect to quinoline N-o...

Journal: :Cancer research 1990
T Aoyama H V Gelboin F J Gonzalez

Eight forms of human liver microsomal P-450 were individually expressed in human hepatoma Hep G2 cells with a vaccinia virus cDNA expression system. Using the Ames test, each expressed P-450 was examined for its ability to activate to mutagenic products the compounds, 2-amino-3-methylimidazo[4,5-f]quinoline, 2-amino-3,4-dimethylimidazo[4,5-f]quinoline, 2-amino-3,8-dimethylimidazo[4,5-f]quinoxal...

Journal: :Dalton transactions 2016
Joachim Hedberg Wallenstein Lisa A Fredin Martin Jarenmark Maria Abrahamsson Petter Persson

A series of homoleptic Ru(II) complexes including the tris-bidentate complexes of a new bidentate ligand 8-(1-pyrazol)-quinoline (Q1Pz) and bidentate 8-(3-pyrazol)-quinoline (Q3PzH), as well as the bis-tridentate complex of bis(quinolinyl)-1,3-pyrazole (DQPz) was studied. Together these complexes explore the orientation of the pyrazole relative to the quinoline. By examining the complexes struc...

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