Results 121 to 130 of about 3,741,215 (311)
Formation of a Salt Enables Complete Deracemization of a Racemic Compound through Viedma Ripening [PDF]
, 2016 Chiral purification is a very important step in the production of many products such as active pharmaceutical ingredients (API). These procedures are typically limited to a maximum yield of 50%.
Hugo Meekes (1410751) +4 more
core +1 more source
Application of crystallization inhibitors to chiral separations. 1. Design of additives to discriminate between the racemic compound and the pure enantiomer of mandelic acid [PDF]
, 2013 In the context of the potential use of crystallization for spontaneous separation of racemates, it is well-known that the frequent appearance of racemic solid forms (racemic compounds) is a serious obstacle.
R. J. Davey (1812265) +2 more
core +2 more sources
Functional and Network PHAs via Stereoselective Polymerization and Tailored Post‐Transformation
Angewandte Chemie, EarlyView.Catalyst‐controlled stereoselective (co)polymerization of functionalized lactones produces vinyl‐, allyl‐, and propargyl‐functionalized PHAs with high syndiotacticity and a broad applicable temperature window, which can be further transformed into crosslinked PHA thermosets, elastic supramolecular networks, and functional grafts. ABSTRACT Incorporation
Ruirui Li +6 more
wiley +2 more sources
IUCrData, 2016 In the racemic title compound, C14H16O3, the dihedral angle formed by the mean planes of the cyclopropane and benzene rings is 5.0 (2)°. In the crystal, a pair of weak C—H...O hydrogen bonds connect two molecules related by a twofold rotation axis, thus ...
Alan J. Lough +2 more
doaj +1 more source
A relationship between the associating power of optical isomers, and the formation of racemic compounds [PDF]
, 1926 It has been shown that substances which do not associate, or do so only to a slight extent, yield melting point curves for their optical isomers which either definitely show the absence of a racemic compound, or show that it is unlikely to be present
Ross, John David McBeath
core
Acta Crystallographica Section E, 2012 The structure of the title compound, [Pd(C2H3O2)(C20H26P)], shows a distorted square-planar geometry for the PdII atom, with significant deviations being evident owing to the asymmetric coordination mode of the acetate ligand. A weak intramolecular C&
Charmaine Arderne, Cedric W. Holzapfel
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Molecules, 2016 We report herein the straightforward two-step synthesis and biological assessment of novel racemic benzochromenopyrimidinones as non-hepatotoxic, acetylcholinesterase inhibitors with antioxidative properties.
Youssef Dgachi +14 more
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2-Amino-2,3-dimethylbutanamide
Acta Crystallographica Section E, 2010 The title compound, C6H14N2O, was synthesized by the reaction between 2-amino-2,3-dimethylbutanonitrile and oil of vitriol (sulfuric acid). A racemic mixture of L- and R-2-amino-2,3-dimethylbutanamide was characterized crystallographically.
Yongbiao Yin
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Crystallization of the Racemic Conglomerate and Racemic Compound of Efonidipine [PDF]
Proceedings of the 2016 International Conference on Biological Engineering and Pharmacy (BEP 2016), 2017 Wen LI +3 more
openaire +1 more source
(RS)-2-Oxo-4-(1-phenylethylamino)-1,2-dihydroquinoline-3-carboxylic acid
Acta Crystallographica Section E, 2011 The molecular structure of the title compound, C18H16N2O3, does not differ in the crystals of the racemic mixture, (I), and the pure enantiomer, (II).
Svitlana V. Shishkina +2 more
doaj +1 more source