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|Title:||Biomimetic oxidation of 3β-hydroxy-olean-12-ene and its acetoxy derivative with monooxygen donors catalyzed by 5,10,15,20-tetraarylporphyrinatoiron(III) chlorides in dichloromethane|
|Authors:||Chauhan, S M S|
Mohapatra, P P
|Abstract:||The oxidation of 3β-hydroxy-olean-12-ene with monooxygen donors catalyzed by 5, 10,15,20- tetraarylporphyrinatoiron(III) chlorides in dichloromethane gives 3β, 11α-dihydroxy-olean-12-ene, 3-oxo-olean-12-ene, 3,11-dioxo-olean-12-ene and 3β-hydroxy-olean-9(11), 12-diene whereas the oxidation of 3β -acetoxy-olean-12-ene under similar conditions gives 11 (-hydroxy-3β -acetoxy-olean-12-ene, 11-oxo-3β -acetoxy-olean-12-ene and 3β-acetoxy-olean- 9(11),12-diene in moderate yields.|
|Appears in Collections:||IJC-B Vol.39B(03) [March 2000]|
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