Synthesis of (−)-xialenon A by enantioselective α-deprotonation-rearrangement of a meso-epoxide
作者:David M Hodgson、Jean-Marie Galano、Martin Christlieb
DOI:10.1016/j.tet.2003.09.023
日期:2003.12
The first total synthesis of (−)-xialenon A was achieved via enantioselective transannular desymmetrisation of a substituted cycloctene oxide using an organolithium/(−)-α-isosparteine combination. Oxidation of the resulting bicyclo[3.3.0]octanol gave an enone which underwent stereoselective conjugate allylation; subsequent α′-hydroxylation on the more hindered face of a derived enone using hypervalent
Enantioselective total synthesis of (–)-xialenon A
作者:David M. Hodgson、Jean-Marie Galano、Martin Christlieb
DOI:10.1039/b208485f
日期:——
The first total synthesis of (â)-xialenon A (1) via conjugate allylation of a 1,5-cyclooctadiene-derived bicyclo[3.3.0]octenone 3 and an αâ²-hydroxylation on the more hinderd face of enone 9 using hypervalent iodine chemistry, is described.
本文介绍了通过 1,5-环辛二烯衍生的双环[3.3.0]辛烯酮 3 的共轭烯丙基化反应,以及利用高价碘化学反应在烯酮 9 的较受阻面上进行δâ²-羟基化反应,首次全合成(â)-xialenon A (1)。