lactone - определение. Что такое lactone
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Что (кто) такое lactone - определение

CLASS OF COMPOUNDS; CYCLIC ESTER
Lactones; Cyclic ester; Lactonization; Γ-lactone; Dilactone; Dilactones; Gamma-lactone; Delta-lactone; Lactonisation; Macrolactone
  • iodolactonization
  • Lactone nomenclature: α-acetolactone, β-propiolactone, γ-butyrolactone, and δ-valerolactone
  • 300px
  • Oxandrolone synthesis

lactone         
['lakt??n]
¦ noun Chemistry an organic compound containing an ester group ?OCO. as part of a ring.
Lactone         
·noun One of a series of organic compounds, regarded as anhydrides of certain hydroxy acids. In general, they are colorless liquids, having a weak aromatic odor. They are so called because the typical lactone is derived from lactic acid.
Lactone         
Lactones are cyclic carboxylic esters, containing a 1-oxacycloalkan-2-one structure (), or analogues having unsaturation or heteroatoms replacing one or more carbon atoms of the ring.

Википедия

Lactone

Lactones are cyclic carboxylic esters, containing a 1-oxacycloalkan-2-one structure (−C(=O)−O−), or analogues having unsaturation or heteroatoms replacing one or more carbon atoms of the ring.

Lactones are formed by intramolecular esterification of the corresponding hydroxycarboxylic acids, which takes place spontaneously when the ring that is formed is five- or six-membered. Lactones with three- or four-membered rings (α-lactones and β-lactones) are very reactive, making their isolation difficult. Special methods are normally required for the laboratory synthesis of small-ring lactones as well as those that contain rings larger than six-membered.