作者:Chenxia Zhang、Suguru Ito、Naoya Hosoda、Masatoshi Asami
DOI:10.1016/j.tetlet.2008.02.094
日期:2008.4
The first asymmetric total synthesis of (+)-curcutetraol, a marine phenolic bisabolane-type sesquiterpene, was achieved in eight steps in ca. 50% overall yield. The chiral tertiary benzylic alcohol moiety in the o-position of a phenol was constructed in high optical yield (99% ee) by an asymmetric synthesis using a chiral aminal, (2R,5S)-2-methoxycarbonyl-3-phenyl-1,3-diazabicyclo[3.3.0]octane.
大约在八步中完成了(+)-curcutetraol(一种海洋酚双五硼烷型倍半萜烯)的首次不对称全合成。总产率为50%。在手性叔苄醇部分Ô酚-位是在高的光学产率(99%ee)的通过使用手性缩醛胺,(2不对称合成构建- [R,5小号)-2-甲氧基羰基-3-苯基1,3-二氮杂双环[3.3.0]辛烷。