An insecticidal composition comprising, in admixture with an agriculturally acceptable carrier, an insecticidally effective amount of a compound of the formula: ##STR1## wherein R, R.sup.1, R.sup.2, R.sup.3, R.sup.7, R.sup.8, m, n, and p are as defined herein, and agriculturally acceptable salts thereof, and methods of using the same.
作者:Enrico Lunghi、Pietro Ronco、Federico Della Negra、Beatrice Trucchi、Massimo Verzini、Daniele Merli、Emanuele Casali、C. Oliver Kappe、David Cantillo、Giuseppe Zanoni
DOI:10.1021/acs.joc.3c01281
日期:2023.12.15
In this work, we successfully employed electrochemical conditions to promote a Hofer–Moest, intramolecular Friedel–Crafts alkylation sequence. The reaction proceeds under mild conditions, employing carboxylic acids as starting materials. Notably, the electrochemical process performed in batch was adapted to a continuousflow electrolysis apparatus to provide a significant improvement. This catalyst-free
在这项工作中,我们成功地利用电化学条件促进 Hofer-Moest 分子内 Friedel-Crafts 烷基化序列。该反应在温和条件下进行,使用羧酸作为起始原料。值得注意的是,分批进行的电化学过程适用于连续流动电解装置,以提供显着的改进。这种无催化剂的电化学方法可生产一系列可用于 API 合成的四氢萘。
CoH-catalyzed asymmetric remote hydroalkylation of heterocyclic alkenes: a rapid approach to chiral five-membered S- and O-heterocycles
array of natural products, bioactive compounds, and pharmaceuticals. Herein, we describe a unique cobalt-catalyzed approach integrated with a desymmetrization strategy, facilitating precise and enantioselective remote hydroalkylation of unactivated heterocyclic alkenes. This method delivers hydroalkylation products with high yields and excellent stereoselectivity, representing good efficiency in constructing
饱和杂环包含 S 和 O 杂原子,是多种天然产物、生物活性化合物和药物的基本框架。在此,我们描述了一种独特的钴催化方法,与去对称化策略相结合,促进未活化杂环烯烃的精确和对映选择性远程加氢烷基化。该方法可提供高产率和优异立体选择性的加氢烷基化产物,在五元 S/O 杂环内的远程 C3 位构建烷基手性中心方面表现出良好的效率。值得注意的是,这种不对称 C(sp 3 )–C(sp 3 ) 偶联的广泛范围和良好的官能团耐受性增强了其适用性。