absolute configuration

The two enantiomers of such compounds are said to have different absolute configurations at this center.

Until 1951 it was not possible to obtain the absolute configuration of chiral compounds.

The study provides support for the biosynthetic route of nargenicin and absolute configuration.

Absolute configurations are also relevant to characterization of crystals.

All the double bonds are cis and the absolute configuration of the stereocenter is (R).

Optical rotatory dispersion can be used to find the absolute configuration of metal complexes.

An alternative approach by White and Hansen supported these absolute configurations (Figure 5).

He is famous for devising a method of establishing the absolute configuration of molecules.

The determination of enantiomeric purity and absolute configuration is frequently necessary in organic synthesis.

The absolute configuration remains undetermined, and attempts at confirming the structure by organic synthesis are underway.

The absolute configuration of one of the enantiomers was determined by X-ray crystallography.

The measurement of absolute configuration is also facilitated by the presence of atoms heavier than oxygen.

The chiral (absolute configuration S) version of this compound is an intermediate to launched retroviral drugs.

Absolute configurations for a chiral molecule (in pure form) are most often obtained by X-ray crystallography.

Chiral auxiliaries are incorporated into synthetic routes to control the absolute configuration of stereogenic centers.

Shorter wavelengths make the observable differences in measured intensities smaller, thereby making the distinction of absolute configuration more difficult.

In 1975, the related alkaloid cathinone was isolated, and its absolute configuration was established in 1978.

The chemical structure of Complanine was determined by spectroscopical methods and the absolute configuration was confirmed with a total synthesis.

Also, a model of the solvated complex may be used to deduce absolute configuration of an enantioenriched analyte.

Also noteworthy is the fact that when a cyclohexane undergoes a ring flip, the absolute configurations of the sterocenters do not change.

It is possible in rare cases that two substituents on an atom differ only in their absolute configuration (R or S).

Extracts from the fresh-water alga Ochromas malhamensis contain this sugar but of unknown absolute configuration.

The absolute configuration of the seven chiral carbon atoms in ajmalan is defined by convention, as is the numbering system.

The absolute configuration of cicutoxin was identified in 1999, they also discovered that the plants contain multiple congeners of cicutoxin.

The absolute configuration of the amino acid segments was determined by chiral HPLC analysis.