Application of the Lewis acid-catalysed Claisen rearrangement of 4′-(1,1-dimethylallyloxy) coumarates to the synthesis of demethylsuberosin
作者:Nicholas Cairns、Laurence M. Harwood、David P. Astles
DOI:10.1039/c39860000750
日期:——
The synthesis of the linear coumarin demethylsuberosin (1) is described via regioselective boron trifluoride–diethyl ether-catalysed Claisen rearrangement of methyl 2′-benzyloxy-4′-(1,1-dimethylallyloxy)cinnamate (4c).
的线性香豆素demethylsuberosin合成(1)中描述了通过(1,1- dimethylallyloxy)肉桂酸甲酯( -甲基苄氧基-4- 2''的区域选择性三氟化硼-二乙醚-催化的Claisen重排图4c)。