2H-CHROMEN-2-ONE
5,7 Dimethoxy 2H chromen 2 one
... Coumarin derivatives, found in many plants, have aromatic properties, and have been widely used as a main component for fragrances (Pang & Wang, 2005). The title compound, (I), belongs to this class of molecules. It ...
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MASS SPECTRAL STUDY ON THE FRAGMENTATION OF 3 [2 (3,5 DIMETHYL 1H PYRAZOL 1 YL)THIAZOL 4 YL] 2H CHROMEN 2 ONE BY AM1 METHOD
... The mass spectrum of 3-[2-(3,5-dimethyl-1H-pyrazol-1-yl)thiazol-4- yl]-2H-chromen-2-one has been studied in the context of correlating fragmentation pathways with electronic charges of ...
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6 Bromo 3 {2 [2 (diphenylmethylene)hydrazinyl] 1,3 thiazol 5 yl} 2H chromen 2 one chloroform monosolvate
... For details and applications of coumarin derivatives, see: Siddiqui et al. (2009); Kamal et al. (2009); Kalkhambkar et al. (2007); Gursoy & Karali (2003). For the synthesis of benzo- phenone thiosemicarbazone and ...
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Crystal structure of 7 hydroxy 8 [(4 methylpiperazin 1 yl)methyl] 2H chromen 2 one
... Coumarin (2H-chromen-2-one) derivatives have wide appli- cations in diverse areas such as pharmaceuticals (Neyts et al., 2009), dyes (Hara et al., 2003) and liquid crystal (Schadt et al., ...
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7 Diethylamino 3 [(2Z) 3 (6 methoxy 2 naphthyl)prop 2 enoyl] 2H chromen 2 one
... Compounds incorporating benzopyrone structural units possess a wide range of biological activities (Pawar & Mulwad, 2004). Coumarins are an important class of molecules because of their applications in synthetic ...
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Crystal structure of a new polymorph of 3 acetyl 8 methoxy 2H chromen 2 one
... Data collection: APEX2 (Bruker, 2004); cell refinement: SAINT (Bruker, 2004); data reduction: SAINT (Bruker, 2004); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: ...
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Crystal structure of 3 (2,2 dibromoacetyl) 4 hydroxy 2H chromen 2 one
... In the title compound (Fig. 1), the hydroxy group is involved in formation of an intramolecular O—H O hydrogen bond (Table 1). In fact, the O3—H5 distance of 0.94 (7) A ˚ has decreased from 1.02 (3) A ˚ , observed in the ...
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Crystal structure of 4 methyl 7 propoxy 2H chromen 2 one
... The title compound was prepared by SN2 reaction between 7- hydroxy-4-methyl-2H-chromen-2-one and n-propyl bromide. 7-Hydroxy-4-methyl-2H-chromen-2-one (0.4 g, 2.27 ...
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(E) 3 (2 {2 [1 (3 Hydroxyphenyl)ethylidene]hydrazinyl} 1,3 thiazol 4 yl) 2H chromen 2 one
... pyran ring, respectively. The hydroxyl group is disordered over two sets of sites, with an occupancy ratio of 0.567 (3):0.433 (3). In the crystal, the major disorder compo- nent molecules are connected via bifurcated ...
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Crystal structure of 7 [(2E) 2 benzylidene 3 oxobutoxy] 4 methyl 2H chromen 2 one
... significant conformational differences between the molecules relating in particular to the relative orientation of the 3-oxo-2- (phenylmethylidene)butoxy substituent with respect to the super-imposable ...
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4 Bromomethyl 6 tert butyl 2H chromen 2 one
... weak C—H O interactions link the molecules into zigzag chains extending along the c-axis direction. These chains are further assembled into (100) layers via – stacking inter- actions between inversion-related chromenone ...
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(Z) 3 (1 Hydroxy 3 oxobut 1 enyl) 6 nitro 2H chromen 2 one
... A solution of 4-hydroxy-6-methyl-3-(2-(methylamino)-3,6-dinitro-4H-chromen-4-yl)-2H-pyran-2-one (0.010 g, 0.266 mmol) in ethanol (15 ml) was heated to reflux for 25 min by which time ...
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3 [2 (Triphenylphosphanylidene)acetyl] 2H chromen 2 one
... The bond distances and angles in the title compound (Fig. 1) agree very well with the corresponding bond distances and angles reported in a closely related compound (Schobert et al., 2000). In the title molecule, the ...
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4 Hydroxy 3 [(4 hydroxy 2 oxo 2H 3 chromenyl)(3 thienyl)methyl] 2H chromen 2 one
... both components, a pair of intramolecular O—H O inter- actions generate rings of S(8) graph-set motif. In the crystal, the molecules are linked by intermolecular C—H O inter- actions, forming chains along the b axis. The ...
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Design, synthesis and biological evaluation of 3-(2-aminooxazol-5-yl)-2H-chromen-2-one derivatives
... The compound 6 was docked in the active site of the ER-alpha of MCF-7 (PDB: 3ERT) co-crystallized wit OHT (Tamoxifen) ligand. The results were analysed based on the docking score obtained from GLIDE. Ligand interaction ...
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Crystal structure of 4 azidomethyl 6 tert butyl 2H chromen 2 one
... In the molecular structure of the title compound (Fig. 1), the chromene moiety is almost planar, with the maximum deviation from the mean plane being 0.093 (2) Å for atom C10, respectively. The azidomethyl group ...
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Redetermination of 3 [(Z) 1 hydroxy 3 oxobutenyl] 2H chromen 2 one at 193 K
... synthesized by the reaction of salicylaldehyde and 4-hydroxy- 6-methyl-2H-pyran-2-one in the presence of triethylbenzyl- ammonium chloride in aqueous media, was previously determined at room ...
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4 Methyl 7 [3 (4 o tolylpiperazin 1 yl)propoxy] 2H chromen 2 one
... C19 0.0628 (17) 0.0367 (14) 0.0466 (15) −0.0068 (12) −0.0096 (13) −0.0028 (12) C20 0.0693 (18) 0.0516 (17) 0.0592 (18) −0.0134 (14) 0.0074 (14) −0.0080 (14) C21 0.102 (2) 0.0511 (17) 0.0534 (18) −0.0107 (16) ...
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7 Diethylamino 3 {(E) 4 [(E) 2 (pyridin 4 yl)ethenyl]styryl} 2H chromen 2 one
... C5 0.0284 (15) 0.054 (2) 0.055 (2) 0.0012 (14) 0.0033 (14) −0.0022 (17) C6 0.0306 (15) 0.0446 (17) 0.0378 (17) −0.0034 (13) −0.0018 (13) 0.0003 (14) C7 0.0282 (14) 0.0413 (17) 0.0399 (17) −0.0038 (13) ...
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3 Hydroxymethyl 6,8 dimethoxy 2H chromen 2 one
... A strain of fungus (No. 2090) was deposited in the Department of Applied Chemistry, Zhongshan University, Guangzhou, People's Republic of China. Culture conditions: GYT medium (glucose 10 g /L, peptone 2 g /L, ...
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