来自澳大利亚南部的褐藻Dictyopteris acrostichoides(古菌科)的不寻常且新颖的C 11 H 16碳氢化合物
摘要:
在较长侧链内的双键处具有(E)-或(E,E)-构型而不是先前已知的(Z)-或(E,Z)-构型的不寻常且新颖的C 11 H 16烯烃是澳大利亚自生植物拟迪克(Dictyopteris acrostichoides)的主要产品。该构型异常涉及脂环族C 11 H 16的所有四个系列烃,即二取代的环戊烯和环丙烷,以及单取代的环庚二烯和环戊烯。上述系列中的手性化合物具有相同的绝对构型。首次发现了两个(环戊-3-烯基)hexa-1、3-二烯11和13。烃的绝对构型和光学纯度通过气相色谱法在改性环糊精上作为手性固定相进行测定。描述了通过脂肪酶催化的拆分手性参考的合成。
Absolute Configuration and Synthesis of (+)-Caudoxirene, the Gamete-Releasing and Gamete-Attracting Pheromone of the Brown Alga<i>Perithalia caudata</i>(Phaeophyceae)
作者:Dieter Wirth、Wilhelm Boland、Dieter G. Müller
DOI:10.1002/hlca.19920750311
日期:1992.5.6
The absoluteconfiguration of the gamete-releasing and -attracting pheromone 2-vinyl-3-(5′-vinylcyclopent-2′-enyl)oxirane ( =(+)-caudoxirene; (+)-1) of the marine brown alga Perithalia caudata is established as (2R,3R,1′S,5′S). Highly diastereoselective syntheses and the biological activities of three diastereoisomers of 1 are described. Compound (+)-(2R,3R,1′S,5′S)-1 is the first fully characterized