Chemistry of xanthorrhizol: synthesis of several bisabolane sesquiterpenoids from xanthorrhizol
作者:Hasnah M. Sirat、Ngai Mun Hong、Muhd Haffiz Jauri
DOI:10.1016/j.tetlet.2006.11.051
日期:2007.1
(−)-Xanthorrhizol (1) isolated from the rhizomes of Curcuma xanthorrhiza has been transformed to several bisabolane-type sesquiterpenoids, in a stereoselective manner. 10R- and 10S-10,11-dihydro-10,11-dihydroxyxanthorrhizols (2, 3), (−)-curcuquinone (4), (−)-curcuhydroquinone (5), helibisabonol A (7) and allylic alcohol 8 have been prepared from xanthorrhizol in optically active forms. All the routes
从姜黄的根茎中分离出的(-)-黄药醇(1)已经以立体选择性的方式转化为几种双水硼烷型倍半萜类化合物。10 - [R -和10小号-10,11-二氢-10,11- dihydroxyxanthorrhizols(2,3),( - ) - curcuquinone(4),( - ) - curcuhydroquinone(5),helibisabonol A(7)和烯丙基醇从黄药醇以光学活性形式制备了8种。所有路线均涉及Sharpless AD,以在C-10处引入立体定位中心。