Exploiting the Anders–Gaßner variant on the Wittig reaction: new methodology for the synthesis of 3,3-dimethylacroyl enol esters
摘要:
A one pot synthesis of the 3,3-dimethylacroyl enol ester function found in the vibsane type diterpenes has been developed based on the Anders-Gassner variant of the Wittig reaction (AGW reaction). This method uses easily accessible acyloxyalkylidene phosphoranes and a variety of aldehydes. (c) 2008 Elsevier Ltd. All rights reserved.
Schwartz, Brett D.; Denton, Justin R.; Lian, Yajing, Journal of the American Chemical Society, 2009, vol. 131, p. 8329 - 8332
作者:Schwartz, Brett D.、Denton, Justin R.、Lian, Yajing、Davies, Huw M. L.、Williams, Craig M.
DOI:——
日期:——
Exploiting the Anders–Gaßner variant on the Wittig reaction: new methodology for the synthesis of 3,3-dimethylacroyl enol esters
作者:Brett D. Schwartz、Craig M. Williams、Ernst Anders、Paul V. Bernhardt
DOI:10.1016/j.tet.2008.04.068
日期:2008.6
A one pot synthesis of the 3,3-dimethylacroyl enol ester function found in the vibsane type diterpenes has been developed based on the Anders-Gassner variant of the Wittig reaction (AGW reaction). This method uses easily accessible acyloxyalkylidene phosphoranes and a variety of aldehydes. (c) 2008 Elsevier Ltd. All rights reserved.
Towards the Total Synthesis of 3-Hydroxyvibsanin E
The synthesis of a silyl-protected derivative of 3-hydroxyvibsanin E has been achieved. The key step is a regio- and stereoselective C-H hydroxylation of an advanced tricyclic intermediate by means of a Rubottom oxidation. hydroxyvibsanin E - C-H hydroxylation - Rubottom oxidation