6060-05-5Relevant academic research and scientific papers
Action of N-Bromosuccinimide on Triterpene Acids and Esters in Dimethyl Sulphoxide
Pradhan, B. P.,Mukherjee, M. M.,Chakrabarti, D. K,Shoolery, J. N.
, p. 12 - 16 (2007/10/02)
Action of N-bromosuccinimide on acetyloleanolic acid/ methyl ester, acetaleuritolic acid/ methyl ester and acetylbetulenic acid/methyl ester in dimethyl sulphoxide has been studied and in each case a bromo γ-lactone is formed, and in the latter two compounds lactonization occurs with rearrangements.The compounds so formed have been identified as 3β-acetyl-12α-bromooleanan-28->13-olide (V), 3β-acetyl-15α-bromooleanan-28->13-olide (II) and 3β-acetyl-29,30-dibromo-18α-oleanan-28->19β-olide (IX) respectively.
