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Two novel triterpenoids from Dysoxylum hainanense

Xiu-Feng He1, Xiao-Ning Wang, Li-She Gan

  • 1State Key Laboratory of Drug Research, Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 555 Zuchongzhi Road, Zhangjiang Hi-Tech Park, Shanghai 201203, P. R. China. jmyue@mail.shcnc.ac.cn

Organic Letters
|September 6, 2008
PubMed

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Compounds bearing two hydroxyl groups are known as diols. When the hydroxyl groups are located on adjacent carbon atoms, the diols are called vicinal diols or glycols. Under acidic conditions, vicinal diols undergo a specific reaction called pinacol rearrangement.
The reaction begins with transferring a proton from the acid catalyst to one of the hydroxyl groups, producing an oxonium ion.