Sulfanyl radical-induced cyclization of linalyl acetate to the iridane skeleton:: A short synthesis of (±)-dehydroiridomyrmecin

被引:11
|
作者
Barrero, AF
Arseniyadis, S
Herrador, MM
del Moral, JFQ
Arteaga, JF
Sánchez, EM
机构
[1] Univ Granada, Inst Biotechnol, Dept Organ Chem, E-18071 Granada, Spain
[2] CNRS, Inst Chim Subst Nat, F-91198 Gif Sur Yvette, France
关键词
sulfanyl radical; iridane skeleton; addition-cyclization reaction; polyprenes; dehydroiridomyrmecin;
D O I
10.1055/s-2005-863729
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
Sulfanyl radicals promote radical cyclization both in linalyl acetate (2) and its derivative 3, leading highly selectively to monoterpenoids with an iridane skeleton. We have investigated the addition of different sulfanyl radicals such as PhS center dot, 4-NO2C6H4S center dot and PhCH2CH2S center dot and found that the latter radical produces the best results (87-93%). Natural iridoid dehydroiridomyrmecin (1) at an overall yield of 28% was synthesized in four steps using this method.
引用
收藏
页码:591 / 594
页数:4
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