there are analogous definitions and uses for diastereomeric excess and percent diastereomeric excess. As an example, a sample with 70 % of R isomer...

another. The degree of relative selectivity is measured by the diastereomeric excess. Stereoconvergence can be considered an opposite of stereospecificity...

been depicted by Fuji et al. Based on different electrophile, the diastereomeric excess varied from 69% to 86. Protected at the aldehyde function with (R)-BINOL...

5-substituted 2-morpholinones have been shown to induce good to excellent diastereomeric excess under different Petasis reaction conditions. Chiral N-acyliminium...

amino acids to oligopeptides is possible with a yield of 95% and a diastereomeric excess of> 99% using the model substances Z-L-Phg-OH and L-H-Pro-NH2. In...

as chiral solvent. The reported chemical yield is 66% with 60% diastereomeric excess Development of an unusually highly enantioselective hetero-Diels-Alder...

(CH2)5CO, with benzaldehyde, C6H5CHO. At room temperature it produces a diastereomeric mixture of threo (63%) and erythro (19%) β-hydroxyketone as well as...

chloride is also known as Mosher's acid chloride, and the resultant diastereomeric esters are known as Mosher's esters. Another system is Pirkle's Alcohol...

1016/S0040-4039(00)91213-9. Narula, A. S. (1981). "An analysis of the diastereomeric transition state interactions for the kinetic deprotonation of acyclic...

properties of diastereomeric products, but rather on the different chemical properties of the racemic starting materials. The enantiomeric excess (ee) of the...

alkynyl and perfluoroalkyl groups would give ketimines in a single diastereomeric form, which is critical for high stereoselectivities. The reaction is...

receptors in the central nervous system. SYM-2081 can be prepared through diastereomeric mixture via enzymatic synthesis, but the yield of this reaction is small...

In the case of N-methyl piperidine, inversion at nitrogen between diastereomeric conformers is much faster than the rate of amine oxidation. The conformation...

Michael acceptors. This addition was performed with relatively high diastereomeric ratios for norbornene which favored addition to the endo position. Moreover...

substrate molecule and which produces the stereoisomeric (enantiomeric or diastereomeric) products in unequal amounts." Put more simply: it is the synthesis...

heart muscle) and fat cells. GLUT14 is expressed exclusively in testicles. Excess glucose is broken down and converted into fatty acids, which are stored...

hydrogenation. Even a single methyl group is often sufficient to bias the diastereomeric outcome of the reaction. These studies, among others, helped challenge...

enone group. The reaction step creates two stereocenters leading to two diastereomeric pairs of enantiomers. By the nature of the ABD skeleton the desired...

enantiotopic or enantiomorphic ester groups by the chiral enzyme are diastereomeric. Pig liver esterase (PLE) is a widely used enzyme for asymmetric ester...

or in a substituent attached to the end of the double bond. Diastereomeric ratios in excess of 90:10 are common for these reactions; however, removal of...

in the β position of the alkyl halide, reductive fragmentation to a diastereomeric mixture of alkenes may occur. β-Elimination of the intermediate organosamarium...

compounds and obtained the thermodynamically controlled product. The diastereomeric ratio of the products is enhanced with bulkier R groups in the auxiliary...

R)-ethambutol, along with the achiral stereoisomer called meso-form, it holds a diastereomeric relationship with the optically active stereoisomers. The activity of...

a simple case of a dinucleotide, this results in the formation of a diastereomeric pair of Sp- and Rp-dinucleoside monophosphorothioates whose structures...

tetramethylenediamine (TMEDA) as a ligand produced syn-diols with a favorable diastereomeric ratio compared to Kishi’s protocol; however, stoichiometric osmium is...

to the presence of one or more stereocenters in the side chains, the diastereomeric relationship between P- and M-helices leads to the preference of one...

intermediates - XXXIX1 : Asymmetric synthesis of (enantiomerically and diastereomerically virtually pure) methyl 2-amino-4,5-epoxy-3-hydroxy-alkanoates and...

of borjatriol involved the rare isolation of a migrated epoxide. The diastereomeric mixture of rearrangement products was carried through the remainder...

Emmons produces the trans olefin. The published synthesis reveals a 1:1 diastereomeric mixture of the carbonyl reduction using zinc borohydride. However, years...

Sieburth, S. M. (2004), "Silanediol peptidomimetics. Evaluation of four diastereomeric ACE inhibitors", Bioorganic & Medicinal Chemistry Letters, 14 (11):...