Results 71 to 80 of about 3,131,133 (230)
OPTICAL ACTIVATION METHOD FOR RACEMIC α-SUBSTITUTED CARBONYL COMPOUNDS [PDF]
Chemistry Letters, 1975 Abstract The optical activation of racemic α-substituted carbonyl compounds by the hydrolysis of enamines with optically active α-pipecoline was reported. Solvent effect on the optical activation was also examined.
Hajime Matsushita +2 more
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Crystal structure of β-d,l-fructose
Acta Crystallographica Section E: Crystallographic Communications, 2015 The title compound, C6H12O6, was crystallized from an aqueous solution of equimolar mixture of d- and l-fructose (1,3,4,5,6-pentahydroxyhexan-2-one, arabino-hexulose or levulose), and it was confirmed that d-fructose (or l-fructose) formed β-pyranose ...
Tomohiko Ishii +4 more
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, 2014 Citation: 'racemic compound' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.R05027 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms.
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4-(3-Methoxyphenyl)-2,6-dimethylcyclohex-3-enecarboxylic acid
Acta Crystallographica Section E, 2010 The racemic title compound, C16H20O3, was synthesized to study the hydrogen-bonding interaction of the two enantiomers in the solid state. In the crystal structure, R and S pairs of the racemate are linked by pairs of intermolecular O—H...O ...
Songwen Xie +3 more
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(R,R/S,S)-9-Benzyl-3-methyl-7-phenyl-1,6-dioxa-3,9-diazaspiro[4.4]nonane-2,8-dione
IUCrData, 2019 The title compound, C19H18N2O4, a rare example of a spirocyclic orthoamide, was synthesized by a double cyclization of a N-Boc protected sarcosine derivative.
Craig M. Forsyth, Zohreh Nazarian
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Acta Crystallographica Section E, 2011 The title racemic compound, C13H18O3, a common precursor in the total synthesis of terpenes, crystallizes with two molecules in the asymmetric unit.
Franz Werner, Liina Toon, Riina Aav
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Structural basis of the chiral selectivity of Pseudomonas cepacia lipase [PDF]
, 1998 To investigate the enantioselectivity of Pseudomonas cepacia lipase, inhibition studies were performed with SC- and RC-(RP,SP)-1,2-dialkylcarbamoylglycero-3-O-p-nitrophenyl alkylphosphonates of different alkyl chain lengths. P.
Dijkstra, Bauke W., +4 more
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, 2014 Citation: 'quasi-racemic compound' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.Q05001 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms.
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5-(2,3-Dichlorophenyl)-3-(4-methoxyphenyl)-1-phenyl-4,5-dihydro-1H-pyrazole
IUCrData, 2017 In the racemic title compound, C22H18Cl2N2O, the dihedral angles between the central dihydropyrazole ring (r.m.s. deviation = 0.018 Å) and the pendant methoxyphenyl, phenyl and dichlorophenyl rings are 3.96 (9), 15.90 (9) and 66.65 (9)° respectively ...
D. M. Lokeshwari +6 more
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Biocatalytic Route to Chiral Precursors of β-Substituted-γ-Amino Acids [PDF]
, 2011 In this work, we utilized commercial lipases (from Thermomyces lanuginosa, Rhizopus delemar, and Mucor miehei) as biocatalysts for the efficient synthesis of precursors of β-substituted-γ-amino acids.
Martinez, Carlos A., Mukherjee, Herschel
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