Synthesis and Characterization of Hexadecadienyl Compounds with a Conjugated Diene System, Sex Pheromone of the Persimmon Fruit Moth and Related Compounds
作者:Takanobu NISHIDA、Le Van VANG、Hiroyuki YAMAZAWA、Ryuji YOSHIDA、Hideshi NAKA、Koji TSUCHIDA、Tetsu ANDO
DOI:10.1271/bbb.67.822
日期:2003.1
natural components, indicating that they were available for use as authentic standards for determining the configuration of the natural pheromone. Furthermore, other hexadecadienyl compounds, including the conjugateddiene system between the 3- and 10-positions, were synthesized to accumulate the spectral data of pheromone candidates. 5,7-Hexadecadienal interestingly showed the base peak at m/z 80; meanwhile
最近从柿果蛾(Stathmopoda masinissa)(一种分布在东亚的柿果的害虫)的信息素腺提取物中鉴定出具有共轭二烯系统的六羟基十六烷-1-醇及其衍生物(乙酸和醛)。在通过电子碰撞电离进行的GC-MS分析中,醇和乙酸盐在m / z 79处显示出它们的碱峰,而醛在m / z 84处产生了一个独特的碱峰,表明存在4,6-二烯结构。为了证实该推论,通过两种不同的途径合成了每种4,6-十六碳二烯基化合物的四个几何异构体,其中以高度立体选择性的方式提供了两个双键之一。通过制备型HPLC容易地完成通过每种途径一起合成的两种异构体的分离。它们的质谱与天然成分的质谱非常吻合,表示它们可用作确定自然信息素构型的真实标准。此外,还合成了其他十六碳烯基化合物,包括3位和10位之间的共轭二烯系统,以积累信息素候选物的光谱数据。5,7-十六烷二醛有趣地显示出在m / z 80处的基峰。同时,与相应的4,6-二烯类似,在m
1,4-Stereoselection by sequential aldol addition–Claisen rearrangement. Stereostructure of the C<sub>30</sub>diol from Messel shale kerogen
作者:Clayton H. Heathcock、Bruce L. Finkelstein
DOI:10.1039/c39830000919
日期:——
Diastereoisomeric amides (9) and (10) are prepared by stereo selective aldol addition, followed by Claisen rearrangement; isomer (9) has been employed to synthesize hydrocarbon (14) and there by establish the stereostructure of the molecular fossil 13, 16-dimethyloctacosane-1,28-diol.
作者:Bernd Spur、Heiner Jendralla、Attilio Crea、Wilfried Peters、Wolfgang König
DOI:10.1002/ardp.19863190209
日期:——
The synthesis of the C20 and C22 analogs of the leukotrienes from the unsaturated aldehydes 2a, b with undecyl(triphenyl)phosphorane and reactions with thiopeptides providing the conjugates LTC, LTD, and LTE is described.
Acyclic stereoselection. Part 42. 1,4- and 1,5-Stereoselection by sequential aldol addition to a .alpha.,.beta.-unsaturated aldehydes followed by Claisen rearrangement. Application to total synthesis of the vitamin E side chain and the archaebacterial C40 diol
作者:Clayton H. Heathcock、Bruce L. Finkelstein、Esa T. Jarvi、Peggy A. Radel、Cheri R. Hadley
DOI:10.1021/jo00244a017
日期:1988.4
Dahlhoff, Wilhelm V., Liebigs Annalen der Chemie, 1992, # 2, p. 109 - 114