Synthesis of Bioactive Sesquiterpene Heliannuol E Involving a Ring-Expansion Reaction of Spirodienones
作者:Shigeru Nishiyama、Fuminao Doi、Takahisa Ogamino、Takeshi Sugai
DOI:10.1055/s-2003-37124
日期:——
A heliannane-type sesquiterpene, heliannuol E (1), has been successfully synthesized. The key step was conversion of the electrochemically produced spiro compounds (8, and 18) into the corresponding dihydrobenzopyrans (11, 12, 19, and 20) by a selective ring expansion process.
已成功合成了一种向日葵型倍半萜烯,向日葵 E (1)。关键步骤是通过选择性扩环过程将电化学产生的螺环化合物(8 和 18)转化为相应的二氢苯并吡喃(11、12、19 和 20)。