Lupane-3β,28-diol, lupan-3β-ol, and friedelan-3β-ol were treated with m-chloroperbenzoic acid (mCPBA) in refluxing chloroform to afford corresponding lactones in one step, while lupane-3β,28-diyl diacetate, lupan-3β-yl acetate, and friedelan-3β-yl acetate to give hydroxylated or keto derivatives. Similar reaction of dendropanoxide with mCPBA yielded 6β-, 7β-, 21α-, and 22β-hydroxylated compounds.
1032. Dehydrogenation with mercuric acetate in the lupane series. Part II. Lupeol and its derivatives
作者:J. M. Allison、William Lawrie、John McLean、J. M. Beaton
DOI:10.1039/jr9610005224
日期:——
OXIDATION OF UNACTIVATED CARBON ATOMS OF LUPANE AND FRIEDELANE-TYPE TRITERPENES WITH<i>m</i>-CHLOROPERBENZOIC ACID
作者:Motoo Tori、Reiko Matusuda、Yoshinori Asakawa
DOI:10.1246/cl.1985.167
日期:1985.2.5
The reaction of lupan-3β,28-diyl diacetate, lupan-3β-yl acetate, and friedelan-3β-yl acetate with m-chloroperbenzoic acid gave their hydroxy or keto derivatives upon oxidation of unactivatedcarbonatoms.
lupan-3β,28-diyl diacetate, lupan-3β-yl acetate, and Friedelan-3β-yl acetate 与间氯过苯甲酸反应,在未活化的碳原子氧化时得到它们的羟基或酮衍生物。