Synthesis of a Diels-Alder precursor for the Elisabethin A skeleton

被引:0
|
作者
Heckrodt, TJ [1 ]
Mulzer, J [1 ]
机构
[1] Univ Vienna, Inst Organ Chem, A-1090 Vienna, Austria
来源
SYNTHESIS-STUTTGART | 2002年 / 13期
关键词
total synthesis; natural products; alkylations; Wittig reactions; stereoselectivity;
D O I
暂无
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
A synthesis of a Precursor 2 for the Elisabethin A skeleton is reported. Containing a masked quinone and a (E,Z)-diene subunit, it has the required elements for the envisaged intramolecular Diels-Alder reaction to form the tricyclic system of Elisabethin A. Starting from methylresorcinol, the sequence involves the preparation of an arylacetic acid, which was a-alkylated by a chiral building block. Subsequent HWE reaction and cis-selective Wittig olefination furnished the diene with the desired leometry.
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页码:1857 / 1866
页数:10
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