The present disclosure provides pheromone compositions. In some aspects, the compositions taught herein comprise a pheromone chemically corresponding to the pheromone naturally produced by a given insect, along with at least one positional isomer of said pheromone. In various aspects, pheromone compositions of the present disclosure are able to modulate the response of the insect based on the ratio of natural pheromone to its positional isomer.
5-ACETOXY-(E3)-3-PENTENYL METHOXYMETHYL ETHER AND METHOD FOR PREPARING (E3)-3-ALKENYL ACETATE USING THE SAME
申请人:SHIN-ETSU CHEMICAL CO., LTD.
公开号:US20130245313A1
公开(公告)日:2013-09-19
Provided are 5-acetoxy-(E3)-3-pentenyl methoxymethyl ether which can be prepared in conventional reaction equipment and a method for preparing an (E3)-3-alkenyl acetate by using it. More specifically, 5-hydroxy-(E3)-3-pentenyl methoxymethyl ether obtained by reacting 4-formyl-(E3)-3-butenyl methoxymethyl ether with a reductant is reacted with an acetylating agent to prepare 5-acetoxy-(E3)-3-pentenyl methoxymethyl ether. (E3)-3-alkenyl methoxymethyl ether obtained by a coupling reaction between the 5-acetoxy-(E3)-3-pentenyl methoxymethyl ether and a Grignard reagent is treated with an acid, and then reacted with an acetylating agent to prepare the (E3)-3-alkenyl acetate.
Concise synthesis of (3E,8Z,11Z)-tetradeca-3,8,11-trienyl acetate and (3E,8Z)-tetradeca-3,8-dienyl acetate, both sex pheromone components of the tomato leafminer Tuta absoluta
作者:Kewu Dong、Quan Zhu、Fangwen Liu、Yushun Zhang、Yunhai Tao
DOI:10.1016/j.tetlet.2022.153928
日期:2022.9
A highly efficient and concise synthesis of (3E,8Z,11Z)-tetradeca-3,8,11-trienyl acetate (1) and (3E,8Z)-tetradeca-3,8- dienyl acetate (2), both sex pheromone components of the tomato leafminer Tuta absoluta was achieved. The stereoselective formation of the 8Z-double bond was accomplished by a Wittig reaction and the 3E-double bond was formed by a modified Knoevenagel condensation. Pheromones 1 and
(3 E ,8 Z ,11 Z )-tetradeca-3,8,11-trienyl acetate ( 1 ) 和 (3 E ,8 Z ) -tetradeca-3,8- dienyl acetate ( 2 )的高效、简洁合成),番茄潜叶虫Tuta absoluta的两种性信息素成分都得到了实现。8 Z-双键的立体选择性形成通过Wittig反应完成,3 E-双键通过修饰的Knoevenagel缩合形成。信息素1和2以高立体化学纯度获得,并且从市售的1,6-己二醇开始,总收率分别为34.7%和37.6%。
MULTI-SUBSTRATE METABOLISM FOR IMPROVING BIOMASS AND LIPID PRODUCTION
申请人:Provivi, Inc.
公开号:EP3564377A1
公开(公告)日:2019-11-06
The present application relates to methods to improve biomass or lipid production in a microorganism from one or more fatty acid and one or more simple carbon co-substrates. Produced lipids may include unsaturated C6-C24 fatty acids, alcohols, aldehydes, and acetates which may be useful as final products or precursors to insect pheromones, fragrances, flavors, and polymer intermediates. The application further relates to recombinant microorganisms modified for improved production of biomass or lipid, or improved lipid selectivity. Also provided are methods of producing one or more lipid using the recombinant microorganisms, as well as compositions comprising the recombinant microorganisms and/or optionally one or more of the product lipid.
MIXTURE OF A FOLCYSTEINE-BASED BIOSTIMULANT AND AN AGROTOXIC SUBSTANCE OF INTEREST RESULTING IN A QUANTITATIVELY, QUALITATIVELY AND TIME-RELATED RESULT-POTENTIATING ACTION AS OBSERVED IN AN AGRICULTURAL CROP OF A PLANT OF INTEREST
申请人:UPL Corporation Limited
公开号:EP3679796A1
公开(公告)日:2020-07-15
Blend of a folcysteine-based biostimulant and an agrotoxic substance of interest resulting in a quantitatively, qualitatively and time-related result-potentiating action as observed in an agricultural crop of a plant of interest, represented by an inventive solution in the agricultural sector, with a broad spectrum of use as an auxiliary agent in the cultivation of plants of agricultural interest, with the greater objective of promoting potentiation of the efficacy of an agrotoxic substance of interest, resulting in improved control of insects, diseases and weeds and/or improved productivity at the time of harvesting an agricultural crop of interest, and to that end a mixture, which may be a solid mixture (Ms) or a liquid mixture (Ml), of an ingredient in which the principal is folcysteine (X), preferably originating from a biostimulant, and of an agrotoxic substance of interest (Y), which may be a herbicide (Y1), a fungicide (Y2) or an insecticide (Y3), has been designed.