[PDF] Top 20 Crystal structures of three 3,4,5 trimethoxybenzamide based derivatives
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Crystal structures of three 3,4,5 trimethoxybenzamide based derivatives
... substituent at the end of the hexyl chain and the nature of these substituents determines the differences in hydrogen bonding between the molecules. In each molecule, the m-methoxy substituents are virtually coplanar ... See full document
24
Crystal structures of three 3 chloro 3 methyl 2,6 diarylpiperidin 4 ones
... The piperidine ring is a ubiquitous structural feature of many alkaloid natural products and drug candidates: Watson et al. (2000) asserted that during a recent 10-year period there were thousands of piperidine compounds ... See full document
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Crystal structures of three N (arylsulfonyl) 4 fluorobenzamides
... the three title compounds, (I)–(III), are grouped into three series; series 1: N-(2-methylphenylsulfon- yl)benzamide, N-(2-methylphenylsulfonyl)-4-(chloro/methyl/ nitro/methoxy)benzamides and ... See full document
22
Crystal structures of 3 fluoro N [2 (trifluoromethyl)phenyl]benzamide, 3 bromo N [2 (trifluoromethyl)phenyl]benzamide and 3 iodo N [2 (trifluoromethyl)phenyl]benzamide
... all three compounds, N—H O hydrogen bonds link the molecules to form chains propagating along the a-axis direction for (I), and along the b-axis direction for (II) and ...the crystal of (I), –A–B–A–B– ... See full document
19
Crystal structures of butyl 2 amino 5 hydroxy 4 (4 nitrophenyl)benzofuran 3 carboxylate and 2 methoxyethyl 2 amino 5 hydroxy 4 (4 nitrophenyl)benzofuran 3 carboxylate
... benzofuran derivatives and their antiproliferative activity and ability to bind telomeric DNA was proved (Carella et ...benzodifuran derivatives that consists of the reaction of 1,4-benzoquinone with ... See full document
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Crystal structures of three ortho substituted N acylhydrazone derivatives
... p-Toluenesulfonyl chloride (0.01 mol) was added to glycine (0.02 mol) dissolved in an aqueous solution of potassium carbonate (0.06 mol, 50 ml). The reaction mixture was stirred at 373 K for 6h, left overnight at room ... See full document
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Synthesis and crystal structures of 5'-phenylspiro[indoline-3, 2'-pyrrolidin]-2-one derivatives
... In both the molecules, the 2-oxyindole ring is planar (r. m.s deviation: 0.031 Å and 0.018 Å for I and II , respec- tively), which is common in spiro complexes [9,10]. The spiro rings of both molecules have the twisted ... See full document
5
Crystal structures and conformational analyses of three pyranochromene derivatives
... (E)-2-[(2-formylphen- oxy)methyl]-3-(4-ethylphenyl)acrylonitrile ...with 5 ml of ethylacetate and hexane mixture (1:49 ratio) which successfully provided pure compound (III) as a colourless ... See full document
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Crystal structures of three 6 aryl 2 (4 chlorobenzyl) 5 [(1H indol 3 yl)methyl]imidazo[2,1 b][1,3,4]thiadiazoles
... 2, 5 or 6 (Khazi et al., 2011). A wide range of such derivatives have been evaluated for their biological activities, which encompass anti-cancer, anti- convulsant, anti-fungal, anti-inflammatory and ... See full document
31
The Molecular and Crystal Structures of Galvinol Derivatives
... The crystal structure of the bisgalvinol derivative 8 is shown in ...compound 5, ...in 5. Similarly the methine bond angles are 122.7(3)° and 121.0(3)° compared to ...in 5, ... See full document
16
Crystal structures of (S) (+) 5 (3 bromo/chloro 4 isopropoxyphenyl) 5 methylimidazolidine 2,4 dione
... of 5-phenyl-5-alkylhydantoin derivatives have been investigated to review the relationships between the absolute configuration and optical ...hydantoins based on their chemical ... See full document
12
Crystal structures of three 1 [4 (4 bromobutoxy)phenyl] chalcone derivatives: (E) 1 [4 (4 bromobutoxy)phenyl] 3 phenylprop 2 en 1 one, (E) 1 [4 (4 bromobutoxy)phenyl] 3 (4 methoxyphenyl)prop 2 en 1 one and (E) 1 [4 (4 bromobutoxy)phenyl] 3 (3,4 dimethoxyphenyl)prop 2 en 1 one
... The packing for molecules (I), (II) and (III) is shown in Figs. 4, 5 and 6, respectively. In the absence of strong hydrogen-bond donors in compounds (I) and (II), the crystal packing is stabilized by ... See full document
19
Crystal structures of three 6 substituted coumarin 3 carboxamide derivatives
... coumarin derivatives 1–3 were synthesized by a two-step ...step, 5-methylsalicylaldehyde (1 mmol) and diethyl malonate (1 mmol) and catalytic amounts of piperidine were dissolved in ethanol (10 ml) ... See full document
20
Crystal structure of 5 [(4 carboxybenzyl)oxy]isophthalic acid
... and crystal engineering (Zhang et ...MOF based on CIA has been structurally and functionally char- acterized, and was shown to be an highly selective CH 2 Cl ... See full document
9
ULTRASOUND ASSISTED EFFICIENT SYNTHESIS OF NOVEL THIAZOLIDINONE DERIVATIVES AS ANTICANCER AGENTS
... phenyl)- 4-oxothiazolidine-3-carbonothioyl benzamide derivatives (PG1-PG10) were obtained by using ultrasonic processor ator which give good yield and require shorter reaction times, the ... See full document
8
Crystal structures of N [(4 phenylthiazol 2 yl)carbamothioyl]benzamide and N {[4 (4 bromophenyl)thiazol 2 yl]carbamothioyl}benzamide from synchrotron X ray diffraction
... Geometry . All esds (except the esd in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell esds are taken into account individually in the estimation of esds in distances, ... See full document
14
4 (4 Fluorophenyl) 2 methyl 3 (1 oxy 4 pyridyl)isoxazol 5(2H) one
... Geometry . All e.s.d.'s (except the e.s.d. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell e.s.d.'s are taken into account individually in the estimation of ... See full document
9
Crystal structures of p substituted derivatives of 2,6 dimethylbromobenzene with ½ ≤ Z′ ≤ 4
... Polysubstituted benzene systems are ubiquitous in the crys- tallographic literature. Limiting a survey to 2,6-dimethyl- bromobenzene, only two derivatives closely related to the series we have studied may be ... See full document
21
Crystal structure of 4 (3,4 dicyanophenoxy) N [3 (dimethylamino)propyl]benzamide monohydrate: a phenoxyphthalonitrile derivative
... (THF; 5 ml), stirred in an ice bath for 15 min, was added over a period of 40 min, 4-(3,4-dicyanophen- oxy)benzoyl chloride (200 mg, ...for 5 h at room temperature and monitored by thin-layer ... See full document
9
Different molecular conformations in the crystal structures of three 5 nitroimidazolyl derivatives
... seen (Table 5) that as a percentage of surface interactions, H H contacts (i.e. van der Waals interactions) are the most significant in each structure, followed by O H/H O contacts. It is interesting the ... See full document
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