|
|Section2= |Section3= }} Acetolactone or α-acetolactone is an organic compound with formula C2H2O2. It is the smallest member of the lactone family but can also be described as the epoxide of ketene. The compound was described in 1997 as a transient species in mass spectrometry experiments.〔Detlef Schröder, Norman Goldberg, Waltraud Zummack, Helmut Schwarz, John C. Poutsma and Robert R. Squires (1997), ''Generation of α-acetolactone and the acetoxyl diradical •CH2COO• in the gas phase''. International Journal of Mass Spectrometry and Ion Processes, Volumes 165-166, November issue, Pages 71-82. 〕 Although acetolactone itself has not been isolated in bulk, the related species ''bis''(trifluoromethyl)acetolactone ((CF3)2C2O2), which enjoys a degree of electronic stabilisation from its two trifluoromethyl groups, is known and has a half-life of 8 h at 25 °C. This compound is prepared by photolysis of ''bis''(trifluoromethyl)malonyl peroxide.〔Waldemar Adam, Ju-Chao Liu, Oswaldo Rodriguez (1973), ''Bis(trifluoromethyl)acetolactone, a Stable α-Lactone''. J. Org. Chem., Volume 38, pages 2269–2270. 〕 ==See also== *α-propiolactone *oxalic anhydride 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Acetolactone」の詳細全文を読む スポンサード リンク
|