Halogenated olefins, processes for their preparation and their use as
申请人:Schering Aktiengesellschaft
公开号:US05248810A1
公开(公告)日:1993-09-28
This are described new halogenated olefines of general formula I ##STR1## in which X.sub.1, X.sub.2, X.sub.3, n and A have the meanings given in the description as well as processes for their preparation. The compounds can be used as pesticides especially against insects and acarids.
A synthesis of (±)-di-O-methylcurvularin (V; R = Me) from 3,5-dimethoxyphenylacetic acid and 7-oxo-octanoic acid is described.
描述了由3,5-二甲氧基苯基乙酸和7-氧代辛酸合成(±)-二-O-甲基弯曲素(V; R = Me)。
Halogenated olefines, process for the preparation thereof and their use as pesticides
申请人:SCHERING AKTIENGESELLSCHAFT
公开号:EP0432861A1
公开(公告)日:1991-06-19
There are described new halogenated olefines of general formula I
in which X₁, X₂, X₃, n and A have the meanings given in the description as well as processes for their preparation. The compounds can be used as pesticides especially against insects and acarids.
本文描述了通式 I 的新型卤代烯烃。
中 X₁、X₂、X₃、n 和 A 的含义以及制备方法。这些化合物可用作杀虫剂,特别是对付昆虫和害虫。
US5248810A
申请人:——
公开号:US5248810A
公开(公告)日:1993-09-28
Synthesis of (±)-dimethyl curvularin based on the palladium-catalyzed carbonylation of 3,5-dimethoxybenzyl chloride using a butadiene telomer as a building block
作者:Takashi Takahashi、Hiroshi Ikeda、Jiro Tsuji
DOI:10.1016/0040-4039(80)80207-3
日期:1980.1
afforded benzyl 7-(3,5-dimethoxyphenylacetoxy)octanoate (6) in 70% yield, which is the precursor of Curvularin (4). The ester (12) was easily prepared from the butadienetelomer obtained by the palladium-catalyzed reaction of butadiene with acetic acid.