A new mild PTSA-catalyzed method for sulfate ester hydrolysis and acid-catalyzed rearrangement of 12-acetyl-diene-11-ol tetracyclic triterpenoids involving an angular methyl migration
作者:Sheo B Singh
DOI:10.1016/s0040-4039(00)01190-4
日期:2000.9
mechanisms for the rearrangement have been elucidated and conditions have been developed to give high yields of the rearrangement products. A new and general PTSA·H2O and PPTS-catalyzed sulfate hydrolysismethod has been developed.