摘要 已经从胡椒科(Piperaceae)的果实中分离出两种新的哌啶生物碱哌啶酮和哌啶酮,以及两种已知的哌啶生物碱胡椒碱和胡椒碱。新化合物的结构确定为 (2 E ,4 E ,14 Z )- N -(2,4,14-十八碳三烯酰基)哌啶和 (2 E ,4 E ,16 Z )- N -(2, 4,16-二十碳三烯酰基)哌啶,分别通过光谱和合成方法。
Synthesis of insect sex pheromones and their homologues. 2. A convenient method for synthesizing (Z)-alkenols and their acetates.
作者:Michio HORIIKE、Masaru TANOUCHI、Chisato HIRANO
DOI:10.1271/bbb1961.44.257
日期:——
(Z)-Alkenols and Their acetates have been synthesized by the Wittig reaction of (ω-hydroxyalkyl)triphenylphosphonium salts with alkanals by a convenient procedure. The geometrical purity of the products was evaluated to be no less than 95% of the (Z)-configu-ration by means of GLC with a glass capillary column coated with CHDMS.
[EN] SYNTHESIS OF PHEROMONE DERIVATIVES VIA Z-SELECTIVE OLEFIN METATHESIS<br/>[FR] SYNTHÈSE DE DÉRIVÉS DE PHÉROMONE PAR MÉTATHÈSE D'OLÉFINES À SÉLECTIVITÉ Z
申请人:PROVIVI INC
公开号:WO2021247583A1
公开(公告)日:2021-12-09
Disclosed herein are methods for synthesizing fatty olefin metathesis products of high Z-isomeric purity from olefin feedstocks of low Z-isomeric purity. The methods include contacting a contacting an olefin metathesis reaction partner, such as acylated alkenol or an alkenal acetal, with an internal olefin in the presence of a Z-selective metathesis catalyst to form the fatty olefin metathesis product. In various embodiments, the fatty olefin metathesis products are insect pheromones. Pheromone compositions and methods of using them are also described.
tested fatty alcohols indicated that the acetyltransferase has a low substratespecificity. Most of the corresponding tetradecenoic acids could also be converted to the respective acetates. However, very different conversion rates among the tested fatty acids demonstrated that the reductase system has a higher substratespecificity than the acetyltransferase. The conversion rates of mostE isomers were
通过局部应用信息素腺体的前体,在体内研究了乙酰转移酶和还原酶系统在信息素生物合成中使用的 Ostrinia furnacalis (Lepidoptera: Pyralidae) 的底物特异性。每个十四烯醇,双键位置(从 7 到 13)和双键的几何形状不同,都被乙酰转移酶转化为相应的乙酸盐。所有测试的脂肪醇转化率的相似性表明乙酰转移酶具有低底物特异性。大多数相应的十四碳烯酸也可以转化为相应的乙酸酯。然而,测试的脂肪酸之间非常不同的转化率表明还原酶系统比乙酰转移酶具有更高的底物特异性。大多数 E 异构体的转化率高于相应的 Z 异构体的转化率,但 (Delta)-11-十四碳烯酸除外,其中更多的 Z 异构体转化为产物。饱和十四烷酸以高速率转化为相应的乙酸盐;较短的同系物十三烷酸的转化率较低 (56%),而较长的同系物十五烷酸和十六烷酸各自的乙酸酯的转化率是微不足道的 (<5%)。本研究的结果表
Novel bisexual attractants, aggregants and arrestants for adults and larvae of codling moth and other species of lepidoptera
申请人:——
公开号:US20020061324A1
公开(公告)日:2002-05-23
Novel bisexual attractants for lepidopterous insect pests isolated from pears or apples. A method for monitoring and control of codling moth and other species of Lepidoptera comprising a lure and kill, mating disruption or mass trapping strategy. A method of using a formulation containing the bisexual attractants with or without an insecticide and/or pheromone for control of the insect pests.
Attractant composition containing ethyl 3-methylbutanoate and (E,E)-8-,10-dodecadien-1-ol
申请人:BASF SE
公开号:EP2735230A1
公开(公告)日:2014-05-28
The present invention relates to a composition for controlling undesired insect infestation comprising (E,E)-8,10-dodecadien-1-ol and ethyl 3-methylbutanoate. The invention further relates to a process for the preparation of said composition and a method for controlling undesired insect infestation with said composition.