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  2. Chirality (chemistry) - Wikipedia

    en.wikipedia.org/wiki/Chirality_(chemistry)

    These types of chirality are far less common than central chirality. BINOL is a typical example of an axially chiral molecule, while trans-cyclooctene is a commonly cited example of a planar chiral molecule. Finally, helicene possesses helical chirality, which is one type of inherent chirality.

  3. Chirality - Wikipedia

    en.wikipedia.org/wiki/Chirality

    Chirality (/ k aɪ ˈ r æ l ɪ t i /) is a property of asymmetry important in several branches of science. The word chirality is derived from the Greek χείρ (kheir), "hand", a familiar chiral object. An object or a system is chiral if it is distinguishable from its mirror image; that is, it cannot be superposed (not to be confused with ...

  4. Chiral drugs - Wikipedia

    en.wikipedia.org/wiki/Chiral_drugs

    Louis Pasteur - pioneering stereochemist. Chirality can be traced back to 1812, when physicist Jean-Baptiste Biot found out about a phenomenon called "optical activity." [10] Louis Pasteur, a famous student of Biot's, made a series of observations that led him to suggest that the optical activity of some substances is caused by their molecular asymmetry, which makes nonsuperimposable mirror ...

  5. Chiral analysis - Wikipedia

    en.wikipedia.org/wiki/Chiral_analysis

    For chiral examination there is a need to have the right chiral environment. This could be provided as a plane polarized light, an additional chiral compound or by exploiting the inborn chirality of nature. The chiral analytical strategies incorporate physical, biological, and separation science techniques.

  6. Chiral media - Wikipedia

    en.wikipedia.org/wiki/Chiral_media

    Chirality with hands and two enantiomers of a generic amino acid The direction of current flow and induced magnetic flux follow a "handness" relationship. The term chiral / ˈ k aɪ r əl / describes an object, especially a molecule, which has or produces a non-superposable mirror image of itself.

  7. Chiral phosphoric acid - Wikipedia

    en.wikipedia.org/wiki/Chiral_phosphoric_acid

    These compounds are used in asymmetric catalysis as chiral Brønsted acids and/or hydrogen-bond donors. [2] The conjugate bases are also used in generating chiral ion pairs. [3] In one example, they are used to catalyze the asymmetric desymmetrization by monohydrolysis of a diester. [4]

  8. Enantiopure drug - Wikipedia

    en.wikipedia.org/wiki/Enantiopure_drug

    There are examples of common drugs, like ibuprofen, where the use of chiral switching has caused controversy. Ibuprofen is a racemic mixture where the S-enantiomer is known to play a major role in reducing inflammation as it inhibits COX-2 (cooxygenase 2) compared to the R-enantiomer; the fact that the S-enantiomer is stronger is what led to ...

  9. Absolute configuration - Wikipedia

    en.wikipedia.org/wiki/Absolute_configuration

    [4] [5] The configuration of other chiral compounds was then related to that of (+)-glyceraldehyde by sequences of chemical reactions. For example, oxidation of (+)-glyceraldehyde (1) with mercury oxide gives (−)-glyceric acid (2), a reaction that does not alter the stereocenter. Thus the absolute configuration of (−)-glyceric acid must be ...