نتایج جستجو برای: 8 dioxo octahydroxanthene

تعداد نتایج: 656094  

Journal: :Agricultural and Biological Chemistry 1975

2010
Giuseppe Bruno Francesco Nicoló Massimiliano Cordaro Giovanni Grassi Francesco Risitano

The crystal structure of N-(3,9-dimethyl-4-phenyl-2,5-dioxo-3,4-dihydro-2H,5H-pyrano[3,2-c]chromen-3-yl)-N-methylbenzamide methanol monosolvate, C(28)H(23)NO(5)·CH(3)OH, has been determined at room temperature by X-ray diffraction. Structural parameters are discussed with reference to ab initio calculations.

Journal: :Acta Crystallographica Section E Structure Reports Online 2008

Journal: :Acta Crystallographica Section E Structure Reports Online 2007

Journal: :Journal of Polymer Science Part A-1: Polymer Chemistry 1971

Journal: :Acta Crystallographica Section E Structure Reports Online 2013

Journal: :Dalton transactions 2011
Ya-Qiu Sun Dong-Zhao Gao Yan-Yan Xu Guo-Ying Zhang Lan-Lan Fan Cheng-Peng Li Tong-Liang Hu Dai-Zheng Liao Chen-Xi Zhang

Solvothermal reactions of mixed ligands H(3)BTC and macrocyclic oxamide complexes (ML, M = Cu, Ni) with M(ClO(4))(2)·6H(2)O (M = Co, Zn, Ni and Cd) afford six new complexes, including [M'(4)(BTC)(2)(ML)(2)(OH)(2)(H(2)O)(2)]·2H(2)O (M' = Co, M = Ni, for (1); M' = Zn, M = Ni, for (2); M' = Zn, M = Cu, for (3)), [Ni(3)(BTC)(2)(NiL)(2)(H(2)O)(6)]·2CH(3)OH·2H(2)O (4), [Cd(4)(BTC)(2)(HBTC)(NiL)(4)(H(...

Journal: :iranian journal of catalysis 2014
hossein naeimi zahra sadat nazifi

efficient and one-pot synthesis of 1,8-dioxo-octahydroxanthenes was described by knoevenagel condensation, michael addition and cyclodehydration of dimedone. this reaction was carried out through condensation of dimedone and various aromatic aldehydes in the presence of task-specific brønsted acidic ionic liquid under solvent free conditions. the catalyst could be recycled five times without si...

B. Mirza M. H. Sayahi

In this work, different ethyl 2,4-dioxo-4-arylbutanoate derivatives were prepared and evaluated for their Src Kinase inhibitory activity. For this purpose, the appropriate substituted acetophenone derivatives reacted with diethyl oxalate in the presence of sodium ethoxide in dried ethanol to give the corresponding products. All compounds showed moderate activities comparing with staurosporine a...

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