[PDF] Top 20 Crystal structure of (E) 4,4,4 trifluoro 3 phenylbut 2 enoic acid
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Crystal structure of (E) 4,4,4 trifluoro 3 phenylbut 2 enoic acid
... F1 0.0745 (12) 0.1200 (16) 0.0741 (11) −0.0052 (10) 0.0318 (9) 0.0103 (10) F2 0.1015 (14) 0.1180 (16) 0.0611 (10) −0.0450 (11) −0.0194 (9) 0.0354 (10) F3 0.1397 (17) 0.0535 (10) 0.0926 (13) −0.0185 (10) 0.0318 (11) ... See full document
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Crystal structure of (3S*,4R*) 4 fluoro 3 (4 methoxyphenyl) 1 oxo 2 phenyl 1,2,3,4 tetrahydroisoquinoline 4 carboxylic acid
... To prevent epimerization during subsequent synthesis steps, e.g. an amide formation, the isosteric substitution of the acidic proton H-4 by a fluorine atom was investigated (Fig. 2). First, the carboxylic ... See full document
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Crystal structure of (E) 4 {1 [2 (carbamothioyl)hydrazin 1 ylidene]ethyl}phenyl 4 methylbenzoate
... benzoic acid 4-acetyl-phenyl ester ...novel 4-(1-(2-carbamothioylhydrazono)ethyl) phenyl 4-methylbenzoate (in solid form) was formed within 4 ...CHCl 3 ... See full document
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Crystal structures of (5RS) (Z) 4 [5 (furan 2 yl) 3 phenyl 4,5 dihydro 1H pyrazol 1 yl] 4 oxobut 2 enoic acid and (5RS) (Z) 4 [5 (furan 2 yl) 3 (thiophen 2 yl) 4,5 dihydro 1H pyrazol 1 yl] 4 oxobut 2 enoic acid
... General procedure. A solution of the corresponding (E)-1- (furan-2-yl)-3-arylprop-2-en-1-one (0.025 mol) in alcohol (15 mL) was added to a solution of hydrazine hydrate (2.5 mL, 0.05 mol) in ... See full document
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Crystal structure of 4 [(E) (4 hydroxybenzylidene)amino] 1,5 dimethyl 2 phenyl 1H pyrazol 3(2H) one
... The pyrazolone ring system is an important structural moiety found in numerous pharmaceutically active compounds. This is mainly due to the ease preparation and the important versatile pharmaceutical and industrial ... See full document
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Crystal structure of (E) dodec 2 enoic acid
... phosphoric acid at 0 °C ...raw acid is converted into the corresponding sodium salt by addition of an aqueous solution of sodium carbonate ...Na 2 SO 4 and ... See full document
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Crystal structure of (E) undec 2 enoic acid
... phosphoric acid at 0 °C ...raw acid is converted into the corresponding sodium salt by addition of an aqueous solution of sodium carbonate ...Na 2 SO 4 and ... See full document
8
Crystal structure of (E) pent 2 enoic acid
... C1 0.0277 (5) 0.0275 (6) 0.0251 (5) −0.0060 (4) −0.0070 (4) −0.0056 (4) C2 0.0270 (5) 0.0326 (6) 0.0272 (5) −0.0093 (5) −0.0077 (4) −0.0066 (4) C3 0.0265 (5) 0.0325 (6) 0.0257 (5) ... See full document
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Crystal structure of 3 (4 methylphenyl) 1 phenyl 5 [(E) 2 phenylethenyl] 1H pyrazole
... A mixture of (2 E ,4 E )-1-(4-methylphenyl)-5-phenylpenta-2,4-dien-1-one (2.48 g, 0.01 mol) and phenylhydrazine (1.08 g,0.01 mol) in 30 ml acetic acid was refluxed for 10 hours. ... See full document
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Crystal structure of 3 (4 hydroxyphenyl) 2 [(E) 2 phenylethenyl]quinazolin 4(3H) one
... and 4-aminophenol (4) (0.175 g, 1.6 mmol) in glacial acetic acid (2 ml) were refluxed for 7 h, then poured into crushed ice (50 ml) and ...2014): ... See full document
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A hydrogen bonded chain of rings in (E) 3 (4 nitrophenylaminocarbonyl)prop 2 enoic acid
... two 2-(X-nitrophenylaminocarbonyl)benzoic acids (X = 2 and 4), formed from phthalic anhydride and the appropriate nitroaniline (Glidewell et ...carbonyl)propen-2-oic acid, (I) ... See full document
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Crystal structure of 4 [(2E) 3 (4 methoxyphenyl)prop 2 enoyl]phenyl benzoate
... In a 250 mL round-bottomed flask 4-hydroxyacetophenone (0.05 mol) and 4-methoxybenzaldehyde (0.05 mol) were taken to which 120 mL of absolute alcohol was added and stirred at room temperature for a span of ... See full document
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Crystal structure of 4 [(3 methylbut 3 enoyl)oxy]phenyl 4 n hexyloxybenzoate
... very loose crystal packing. The close packing is formed as a result of many non-directional van der Waals and weak directional interactions. The most typical directional inter- actions are weak hydrogen bonds C—H ... See full document
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Crystal structure of 2 (4 chlorophenyl) 3 (4 methoxyphenyl) 3 (methylsulfanyl)acrylonitrile
... (4-chloro- phenyl)-acetonitrile (0.75 g, 5.0 mmol) and 4-methoxy-dithiobenzoic acid methyl ester ...for 4 h and poured into ice cold water (25 ...CH 2 Cl 2 (3 × 10 ... See full document
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4 (3 Fluoro 4 methylanilino) 2 methylidene 4 oxobutanoic acid
... Substituted itaconamic acids are strongly amphiphilic molecules. Itaconic anhydride is more reactive than maleic anhydride and is an alternative monomer for introducing polar functionality into polymers (Oishi, 1980; ... See full document
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Crystal structure of 2 (diphenylphosphanyl)phenyl 4 (hydroxymethyl)benzoate
... functionalized 2-(diphenylphosphano)phenol derivatives are important starting materials for various labeling purposes using the traceless Staudinger Ligation (Mamat et ...2009). 4-(Halomethyl) and ... See full document
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Crystal structures of (E) 3 (4 hydroxybenzylidene)chroman 4 one and (E) 3 (3 hydroxybenzylidene) 2 phenylchroman 4 one
... A search of the Cambridge Structural Database (CSD version 5.40, last update November 2018; Groom et al., 2016) using the scheme presented in Fig. 5 found 41 chromanone (Ishikawa et al., 2013a,b; Zimmerman et al., 2015; ... See full document
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Crystal structure of (E) 2 {[(4 anilinophenyl)imino]methyl} 4 nitrophenol
... 100 mg (1 mmol) of N-phenyl-p-phenylenediamine was dissolved in 10 ml of absolute ethanol. To this solution, 90 mg (1 mmol) of 2-hydroxy-5-nitrobenzaldehyde in 5 ml of abso- lute ethanol was added dropwise ... See full document
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Crystal structure of 4 (3 carboxypropanamido) 2 hydroxybenzoic acid monohydrate
... Department of Chemistry, The University of Azad Jammu and Kashmir, Muzaffar- abad 13100, Pakistan, c Department of Chemistry, Mirpur University of Science and Technology, Mirpur, Azad Jammu and Kashmir, Pakistan, and d ... See full document
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Crystal structure of 4 {(E) [2 (pyridin 4 ylcarbonyl)hydrazin 1 ylidene]methyl}phenyl acetate monohydrate
... 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
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