epimeric in English
adjective
(Chemistry) pertaining to epimers, pertaining to aldose stereoisomers with different arrangements of the hydrogen group and the hydroxyl group in the last asymmetric carbon atom of the chai
Use "epimeric" in a sentence
1. The epimeric equilibrium compositions obtained depend on whether an equimolar or a catalytic amount of alkali is supplied.
2. Hydrolysis and acetolysis of 8-bromo-1-hydroxydi-isophor-2(7)-en-3-one yields both epimeric forms of the corresponding 4-hydroxy and 4-acetoxy-compounds, probably by a mechanism involving a bimolecular (SN2′′) displacement.
3. Its preparation involved reductive lithium aluminum hydride ring opening of 3,4-anhydro-1,2:5,6-di-O-isopropylidene- D-talitol, followed by hydrolysis of the resulting epimeric deoxy diisopropylidene hexitols and selective Acetobacter suboxydans oxidation of 3-deoxy-D-arabinohexitol.
4. The acetolysis-inversion reaction has been carried out with 2,3;5,6-di-O-isopropylidene-D-gulofuranose, 2,3;6,7-di-O-isopropylidene-D-glycero-D-gulo-heptose, 2,3-O-isopropylidene-D-ribose, D-ribose, and D-mannose using chromatography for isolation of the deacetylated epimeric products.