Tetrahedron Letters p. 5463 - 5466 (1989)
Update date:2022-08-17
Topics:
Pradhan, Bhim P.
Chakraborty, Satyajit
Weyerstahl, Peter
Oxidation of 4,4-dimethyl-3-keto triterpenoid with m-CPBA in presence of p-TsOH furnishes 3,4-seco triterpenoid acid whereas 4-mono-methyl-3-keto-triterpenoid affords only the ε-lactone under the identical condition.
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