asymmetric carbon atom

asymmetric carbon atom
a carbon atom with four different substituents. Such a molecule does not have a mirror plane passing through the asymmetric atom, and thus may be optically active.

Medical dictionary. 2011.

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  • asymmetric carbon atom — noun : a carbon atom in union with four atoms or groups no two of which are alike, compounds containing such a carbon atom being capable of existing in two optically active forms which are distinguished by being respectively levorotatory and… …   Useful english dictionary

  • Asymmetric carbon — An asymmetric carbon atom is a carbon atom that is attached to four different types of atom or four different groups of atoms.[1][2] Knowing the number of asymmetric carbon atoms, one can calculate the maximum possible number of stereoisomers for …   Wikipedia

  • chiral carbon atom — asymmetric carbon a …   Medical dictionary

  • asymmetric synthesis — noun chemistry : a process that directly produces an optically active compound (as one containing an asymmetric carbon atom) from symmetrically constituted molecules without requiring resolution of a racemic mixture …   Useful english dictionary

  • asymmetric synthesis — Chemical reaction by which unequal amounts of two product isomers are formed. It is normally not possible to synthesize from materials that do not have optical activity (i.e., are not chiral) one stereoisomer of a chiral compound without the… …   Universalium

  • asymmetric — asymmetrically, adv. /ay seuh me trik, as euh /, adj. 1. not identical on both sides of a central line; unsymmetrical; lacking symmetry: Most faces are asymmetric. 2. (of a logical or mathematical relation) holding true of members of a class in… …   Universalium

  • asymmetric — a•sym•met•ric [[t]ˌeɪ səˈmɛ trɪk, ˌæs ə [/t]] also a sym•met′ri•cal adj. 1) not identical on both sides of a central line; lacking symmetry 2) chem. a) having an unsymmetrical arrangement of atoms in a molecule b) noting a carbon atom bonded to… …   From formal English to slang

  • Asymmetric induction — (also enantioinduction) in stereochemistry describes the preferential formation in a chemical reaction of one enantiomer or diastereoisomer over the other as a result of the influence of a chiral feature present in the substrate, reagent,… …   Wikipedia

  • Trost asymmetric allylic alkylation — The Trost asymmetric allylic alkylation or Trost AAA or allylic asymmetric substitution is an organic reaction used in asymmetric synthesis. [Trost, B. M.; Fullerton, T. J. New synthetic reactions. Allylic alkylation. J. Am. Chem. Soc. 1973, 95 …   Wikipedia

  • Stereocenter — A stereocenter or stereogenic center is an atom, bearing groups such that an interchanging of any two groups leads to a stereoisomer.[1] A chirality center is a stereocenter consisting of an atom holding a set of ligands (atoms or groups of… …   Wikipedia

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