A new method for the trifluoromethylation of aromatics
作者:A. Marhold、E. Klauke
DOI:10.1016/s0022-1139(00)82619-6
日期:1981.9
A newmethod is discribed for introducing a CF3-group, by a single-step synthesis, into aromatic compounds. This trifluoromethylation is done by means of a mixture consisting of HF/CCL4 and the aromatic compound. The reaction is thought to be of a Friedel-Crafts type and limited to aromatics which are not substituted by electron withdrawing groups.
<i>N</i>,<i>N</i>′-(Phenylmethylene)diacetamide Analogues as Economical and Efficient Ligands in Copper-Catalyzed Arylation of Aromatic Nitrogen-Containing Heterocycles
N,N′-(Phenylmethylene)diacetamide analogues which were simply prepared from the condensation reaction of an aldehyde with an amide or urea were found to be efficient ligands in copper-catalyzed coupling reaction of aryl halides with various azole nucleophiles. The newly developed ligand showed broad application scope in this conversion. Compounds including imidazoles, benzoimidazoles, pyrrole, indole, and benzotriazole were successfully arylated with diversified aromatic halides to give corresponding products in moderate to excellent yields.
Verfahren zur Herstellung aromatischer Trifluormethylverbindungen
申请人:BAYER AG
公开号:EP0008453A1
公开(公告)日:1980-03-05
Die Patentanmeldung beansprucht ein Verfahren zur Herstellung von aromatischen Trifluormethylverbindungen, bei dem aromatische Verbindungen mit Tetrachlorkohlenstoff und Fluorwasserstoff im Temperaturbereich von 50 bis 140°C umgesetzt werden.
Einige der durch das erfindungsgemäße Verfahren herstellbaren aromatischen Trifluormethylverbindungen sind neu.
Compounds are provided having the structure of the following Formula I:
where R, R1, R2, R3a and R3b are as defined herein. Pharmaceutical compositions comprising such compounds, as well as methods related to their manufacture and use, are also provided.
所提供的化合物具有下式 I 的结构:
其中 R、R1、R2、R3a 和 R3b 如本文所定义。此外,还提供了包含此类化合物的药物组合物,以及与其制造和使用相关的方法。