Acid-catalyzed and thermal rearrangements of obtusaquinol and related 3,3-diarylpropenes
作者:L. Jurd、K. Stevens、G. Manners
DOI:10.1016/s0040-4020(01)93361-7
日期:1973.1
Thermal rearrangement of the natural neoflavanoid, (±)-obtusaquinol, yields (±)-obtusafuran. In aqueous acid media obtusaquinol, latifolin and related phenolic 3,3-diarylpropenes rearrange to the isomeric 2-cinnamylphenols. The acid-catalyzed transformations involve initial elimination of a cinnamyl cation. 3-Cinnamylflavans are formed as minor products in these reactions.
天然新黄酮类化合物(±)-奥布他喹醇的热重排产生(±)-奥布他呋喃。在含水酸性介质中,奥他沙喹醇,latifolin和相关的酚类3,3-二芳基丙烯重排为异构的2-肉桂基酚。酸催化的转化涉及肉桂基阳离子的初始消除。3-肉桂黄酮在这些反应中作为次要产物形成。