C3-homologation. Synthesis of C19-skipped polyenic pheromones.
作者:Jacques Viala、Pascal Munier、Maurice Santelli
DOI:10.1016/s0040-4020(01)86399-7
日期:1991.1
Total synthesis of three sex pheromone components including an all-cis diene or triene unit are described. Starting from decanal, cis-Wittig reactions, by using C3 homologating agent 4 and convenient phosphonium salts, allowed us to built up all-cis skipped polyenic skeleton of the targets. These syntheses are shorter than those described in the literature and have been performed in better overall
PRODUCTION OF FATTY OLEFIN DERIVATIVES VIA OLEFIN METATHESIS
申请人:PROVIVI, INC.
公开号:US20170137365A1
公开(公告)日:2017-05-18
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 R
1
is independently selected from H, C
1-18
alkyl, and C
2-18
alkenyl; R
2b
is C
1-8
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.
(Z,Z)-6,9-Nonadecadien-3-one and (Z,Z,Z)-3,6,9-nonadecatriene were identified by GC-EAD and GC-MS in ovipositor extracts of . ; the synthetic mixture is attractive to males of the species in the field.
Production of fatty olefin derivatives via olefin metathesis
申请人:Provivi, Inc.
公开号:US10596562B2
公开(公告)日:2020-03-24
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。