The present invention relates to a method for preparation of betulinic acid from betulin. The method comprises oxidizing betulin to betulinic acid with a catalyst of formula (5), e.g. 2,2,6,6-tetramethylpiperidine 1 - oxyl (TEMPO), in the presence of a hypervalent iodine reagent as oxidant.
申请公布号
WO2013038316(A1)
申请公布日期
2013.03.21
申请号
WO2012IB54640
申请日期
2012.09.07
申请人
STORA ENSO OYJ;WICKHOLM, NIKO;ALAKURTTI, SAMI;YLI-KAUHALUOMA, JARI;KOSKIMIES, SALME
发明人
WICKHOLM, NIKO;ALAKURTTI, SAMI;YLI-KAUHALUOMA, JARI;KOSKIMIES, SALME
