A New Method for the Preparation of 1,5-Diynes. Synthesis of (4E,6Z,10Z)-4,6,10-Hexadecatrien-1-ol, the Pheromone Component of the Cocoa Pod Borer Moth Conopomorpha cramerella
摘要:
A new method for the synthesis of 1,5-diynes, from the reaction of 1,3-dilithiopropyne and propargyl chlorides, was developed. This new methodology was used to prepare (4E,6Z,10Z)-4,6,10-hexadecatrien-1-ol, one of the pheromone components of the cocoa pod borer moth Conopomorpha cramerella, in 51% overall yield.
Synthesis of (4E,6Z,10Z)-hexadeca-4,6,10-trien-1-ol and (4E,6E,10Z)-hexadeca-4,6,10-trien-1-ol, the pheromone components of cocoa pod borer moth Conopomorpha cramerella
作者:Fei Huang、Yushun Zhang、Yun Yao、Wanqiu Yang、Yunhai Tao
DOI:10.1039/c7ra04027j
日期:——
A concise and efficient synthesis of the pheromone components of the cocoa pod borer moth, namely (4E,6Z,10Z)-hexadeca-4,6,10-trien-1-ol and (4E,6E,10Z)-hexadeca-4,6,10-trien-1-ol, starting from commercially available materials, was reported. The overall yield was 30.4% and 27.4%, respectively. The stereoselective formation of (E,Z)- or (E,E)-conjugated double bond relied on Sonogashiracoupling with
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.
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.
Microorganisms for the production of insect pheromones and related compounds
申请人:Provivi, Inc.
公开号:US10308962B1
公开(公告)日:2019-06-04
The present application relates to recombinant microorganisms useful in the biosynthesis of unsaturated C6-C24 fatty alcohols, aldehydes, and acetates which may be useful as insect pheromones, fragrances, flavors, and polymer intermediates. The C6-C24 fatty alcohols, aldehydes, and acetates described herein may be used as substrates for metathesis reactions to expand the repertoire of target compounds and pheromones. The application further relates to recombinant microorganisms co-expressing a pheromone pathway and a pathway for the production of a toxic protein, peptide, oligonucleotide, or small molecule suitable for use in an attract-and-kill pest control approach. Also provided are methods of producing unsaturated C6-C24 fatty alcohols, aldehydes, and acetates using the recombinant microorganisms, as well as compositions comprising the recombinant microorganisms and/or optionally one or more of the product alcohols, aldehydes, or acetates.
Production of fatty olefin derivatives via olefin metathesis
申请人:Provivi, Inc.
公开号:US11077433B2
公开(公告)日:2021-08-03
In one aspect, the invention provides a method for synthesizing a fatty olefin derivative. The method includes: a) contacting an olefin according to Formula I
with a metathesis reaction partner according to Formula IIb
in the presence of a metathesis catalyst under conditions sufficient to form a metathesis product according to Formula IIIb:
and
b) converting the metathesis product to the fatty olefin derivative. Each R1 is independently selected from H, C1-18 alkyl, and C2-18 alkenyl; R2b is C1-8 alkyl; subscript y is an integer ranging from 0 to 17; and subscript z is an integer ranging from 0 to 17. In certain embodiments, the metathesis catalyst is a tungsten catalyst or a molybdenum catalyst. In various embodiments, the fatty olefin derivative is a pheromone. Pheromone compositions and methods of using them are also described.
一方面,本发明提供了一种合成脂肪烯烃衍生物的方法。该方法包括: a) 将符合式 I 的烯烃
与符合式 IIb 的偏析反应物接触
在偏析催化剂存在下,在足以形成符合式 IIIb 的偏析产物的条件下:
和
b) 将偏析产物转化为脂肪烯烃衍生物。每个 R1 独立选自 H、C1-18 烷基和 C2-18 烯基;R2b 是 C1-8 烷基;下标 y 是 0 至 17 的整数;下标 z 是 0 至 17 的整数。在某些实施方案中,偏合成催化剂是钨催化剂或钼催化剂。在各种实施方案中,脂肪烯烃衍生物是信息素。还描述了信息素组合物及其使用方法。