Acetolactone

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Structural formula
Structural formula of acetolactone
General
Surname Acetolactone
other names
  • α-acetolactone
  • 2-oxiranone
  • Oxiran-2-one ( IUPAC )
Molecular formula C 2 H 2 O 2
External identifiers / databases
CAS number 42879-41-4
PubChem 445391
Wikidata Q416613
properties
Molar mass 58.04 g mol −1
safety instructions
GHS hazard labeling
no classification available
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Acetolactone or α-acetolactone is an organic compound with the empirical formula C 2 H 2 O 2 . It is the smallest representative of the lactones and can also be described as the epoxide of ketene . The compound was first described as a short-lived species in mass spectrometric experiments in 1997 .

Although acetolactone has not yet been isolated in large quantities, the similar compound bis (trifluoromethyl) acetolactone ((CF 3 ) 2 C 2 O 2 ) is known, which is somewhat stabilized by the two trifluoromethyl groups and has a half-life of 8 hours (at 25 ° C). It is made by photolysis of bis (trifluoromethyl) malonyl peroxide.

See also

Individual evidence

  1. ↑ This substance has either not yet been classified with regard to its hazardousness or a reliable and citable source has not yet been found.
  2. ↑ Detlef Schröder, Norman Goldberg, Waltraud Zummack, Helmut Schwarz , John C. Poutsma and Robert R. Squires (1997), Generation of α-acetolactone and the acetoxyl diradical • CH 2 COO • in the gas phase . International Journal of Mass Spectrometry and Ion Processes, Volumes 165-166, November issue, pp. 71-82. doi : 10.1016 / S0168-1176 (97) 00150-X
  3. ↑ Waldemar Adam , Ju-Chao Liu, Oswaldo Rodriguez (1973), Bis (trifluoromethyl) acetolactone, a Stable α-Lactone . J. Org. Chem. 1973, Volume 38, pp. 2269-2270. doi : 10.1021 / jo00952a047