[PDF] Top 20 2 Ferrocenyl 3 nitro 2H chromene
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2 Ferrocenyl 3 nitro 2H chromene
... For the biological activity of ferrocenyl derivatives, see: Fouda et al. (2007); Jaouen et al. (2004); Biot et al. (2004); Edwards et al. (1975). For conformational analysis and puckering para- meters, see: Cremer ... See full document
11
4 [4 (Heptyloxy)benzoyloxy]phenyl 2 oxo 7 trifluoromethyl 2H chromene 3 carboxylate
... 7-(trifluoromethyl)- 2-oxo-2H-chromene-3-carboxylate (II), 4-(octyloxy)phenyl 2- oxo-2H-chromene-3 –carboxylate (III) (Palakshamurthy, Sreenivasa et ...F 3 O ... See full document
11
12 (1,1 Dimethyl 2 propenyl) 5,9,10 trihydroxy 2,2 dimethyl 2H,6H pyrano[3,2 b]xanthen 6 one
... the chromene ring, viz 5,9,10-trihydroxy-2,2-dimethyl-12-(3-methylbut-2- enyl)-2H,6H-pyrano[3,2-b]xanthen-6-one methanol solvate (Chantrapromma, Boonnak et ...a chromene ring; since it ... See full document
12
Monoclinic form of 7 nitro 2 phenyl 1,2 benzisoselenazol 3(2H) one
... In (I), the maximum and minimum residuals in the final difference map are located at 1.11 and 0.86 Å, respectively, from the Se1 position. The distances and angles are quite similar to those found in (II). The most ... See full document
9
Potentiometric and thermodynamic studies of [2 oxo 2h chromene 3 carbohydrazide] and its metal complexes
... The interaction process between the ligand [2-oxo-2H- chromene-3-carbo hydrazide] and metal ions (Ni +2 and Cu +2 ) is spontaneous and endothermic. Potentiometrically the ... See full document
5
4′ Cyanobiphenyl 4 yl 7 diethylamino 2 oxo 2H chromene 3 carboxylate
... O1 0.0521 (11) 0.0481 (12) 0.0611 (10) 0.0095 (8) −0.0207 (8) −0.0165 (8) O2 0.0338 (9) 0.0459 (10) 0.0452 (8) 0.0071 (7) −0.0118 (7) −0.0110 (7) O3 0.0396 (10) 0.0559 (11) 0.0541 (9) 0.0177 (8) −0.0193 (8) −0.0138 (7) ... See full document
9
3 (5 Ethyl 2 methyl 4 nitro 2H pyrazole 3 carbonyl)oxazolidin 2 one
... Data collection: PROCESS-AUTO (Rigaku, 1998); cell re®ne- ment: PROCESS-AUTO; data reduction: CrystalStructure (Rigaku and Rigaku/MSC, 2000±2004); program(s) used to solve structure: SIR97 (Altomare et al., 1999); ... See full document
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DESIGN, SYNTHESIS AND ANTICANCER ACTIVITY OF STRUCTURALLY MODIFIED 1, 3, 4-OXADIAZOLE INCORPORATED 2H-CHROMENE DERIVATIVES AS ANTICANCER AGENTS
... To a mixture of 3-hydroxypyridine-2-carbaldehyde (3) (8 g, 0.064 mmol), ethyl acetoacetate (4) (3.7 ml, 0.128 mmol) in 30 mL of anhydrous ethanol was added piperidine (0.42 ml, 0.00426 mmol) dropwise ... See full document
6
2 Allyl 7 nitro 2H indazole
... (Fig. 2). The dihedral angles of 2.7 (2) and 2.2 (2)°, respectively, between the fused ring systems and the nitro groups lead to a synperiplanar conformation for each ... See full document
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(Z) 3 (1 Hydroxy 3 oxobut 1 enyl) 6 nitro 2H chromen 2 one
... Data collection: CrysAlis PRO (Oxford Diffraction, 2009); cell refinement: CrysAlis PRO; data reduction: CrysAlis PRO; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: ... See full document
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A Simple and Convenient Synthesis of Isolated Fused Heterocycles Based on: 2 Imino N phenyl 2H chromene 3 carboxamide
... mol), 2- cyano-N-p-tolylacetamide (1.74 g, 0.01 mol), 2-cyanoace- tohydrazide ...mol), 2-cyano-N-phenylace- tamide (1.6 g, 0.01 mol) and 2-chloroacetamide ... See full document
14
Article Biofilm removal and bacterial re-colonization inhibition of a novel erythritol/chlorhexidine air- polishing powder on titanium disks.
... Abstract: Air-polishing with low abrasiveness powders is fats arising as a valid and mini-invasive instrument for the management of biofilm colonizing dental implants. The reported advantage is the efficient removal of ... See full document
11
Crystal structures and Hirshfeld surface analyses of (E) N′ benzylidene 2 oxo 2H chromene 3 carbohydrazide and the disordered hemi DMSO solvate of (E) 2 oxo N′ (3,4,5 trimethoxybenzylidene) 2H chromene 3 carbohydrazide: lattice energy and intermolecular interaction energy calculations for the former Corrigendum
... C346 0.0140 (5) 0.0250 (6) 0.0209 (5) 0.0029 (4) 0.0019 (4) −0.0081 (4) C431 0.0224 (5) 0.0185 (5) 0.0203 (5) 0.0032 (4) 0.0051 (4) −0.0037 (4) C441 0.0193 (5) 0.0220 (5) 0.0145 (5) −0.0009 (4) 0.0007 (4) 0.0032 (4) C451 ... See full document
11
1 Acetyl 3 ferrocenyl 5 (2 nitrophenyl) 2 pyrazoline
... A mixture of 1-ferrocenyl-3-(2-nitrophenyl)-2-propenone (0.09 g, 0.24 mmol), 80% hydrazine hydrate (0.264 g, 5.28 mmol) and glacial acetic acid (10 ml) was refluxed under nitrogen atmosphere ... See full document
13
Crystal structures and Hirshfeld surface analyses of (E) N′ benzylidene 2 oxo 2H chromene 3 carbohydrazide and the disordered hemi DMSO solvate of (E) 2 oxo N′ (3,4,5 trimethoxybenzylidene) 2H chromene 3 carbohydrazide: lattice energy and intermolecular interaction energy calculations for the former
... C451—H51C 2 interaction generates a spiral chain of molecules; together these three interactions form a tube, into which the disordered DMSO molecule is cocooned, held there by a number of C— H X (X = O, N and S) ... See full document
29
4 (Decyloxy)phenyl 2 oxo 7 trifluoromethyl 2H chromene 3 carboxylate
... A mixture of 7-(trifluoromethyl)-2-oxo-2H-chromene-3-carboxylic acid (0.100 g, 0.1 mmol), 4-(decyloxy) phenol (0.100 g, 0.1 mmol) dicyclohexylcarbodiimide (DCC) (0.100 g, 0.1 mmol) and ... See full document
10
Crystal structures of 4 methyl 2 oxo 2H chromene 7,8 diyl diacetate and 4 methyl 2 oxo 2H chromene 7,8 diyl bis(pent 4 ynoate)
... In (2) (Fig. 2), the C C group of one of the pent-4-ynoate substituents is disordered over two positions with occupancies of 0.55 (2) and 0.45 (2). The coumarin ring is almost planar (r.m.s. ... See full document
14
2 Ferrocenyl 6 (3 nitrophenyl)quinoline
... Fe1 0.0360 (2) 0.0635 (3) 0.0444 (2) −0.00707 (19) 0.00264 (16) 0.0053 (2) N1 0.0543 (14) 0.0625 (18) 0.0490 (14) 0.0005 (13) 0.0113 (11) 0.0034 (13) N2 0.0354 (11) 0.0452 (13) 0.0466 (13) ... See full document
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6 Chloro 8 nitro 4 oxo 4H chromene 3 carbaldehyde
... In the crystal, the molecules are linked through stacking interaction along the a axis [centroid–centroid distance between the benzene rings of the chromone units = 3.770 (3) Å], as shown in Fig. 3. The ... See full document
9
N′ (2 Hydroxybenzoyl) 2 oxo 2H chromene 3 carbohydrazide
... The hydrogen bonds are listed in Table 1. There are two intramolecular N—H O hydrogen bonds and one inter- molecular O—H O hydrogen bond in the crystal structure; the intermolecular hydrogen bond O5—H5O O4 links ... See full document
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