Highly Fluorinated 2,2′-Biphenols and Related Compounds: Relationship between Substitution Pattern and Herbicidal Activity
作者:Robert Francke、Rüdiger Reingruber、Dieter Schollmeyer、Siegfried R. Waldvogel
DOI:10.1021/jf401081g
日期:2013.5.22
The influence of the substitution pattern on the herbicidal properties is discussed, and conclusions on the active site of the biphenol structure are drawn. It was observed that type and position of the halogen substituents have a significant influence on the activity of the core structure. The hydroxy functionalities play a crucial role for the effectiveness of the tested compounds. Because the blocking
Synthesis of Highly Fluorinated 2,2′-Biphenols and 2,2′-Bisanisoles
作者:Robert Francke、Gregor Schnakenburg、Siegfried R. Waldvogel
DOI:10.1021/ol101698a
日期:2010.10.1
Multiply fluorine-substituted iodo anisoles are efficiently coupled in an Ullmann-type reaction to provide the corresponding bisanisoles. The coupling is selective and even tolerates bromo moieties. Subsequent deprotection of hydroxy groups gives access to highly fluorinated biphenols.
Bis(2,2′‐biphenoxy)borates for Electrochemical Double‐Layer Capacitor Electrolytes
作者:Robert Francke、Dario Cericola、Rüdiger Kötz、Gregor Schnakenburg、Siegfried R. Waldvogel
DOI:10.1002/chem.201003449
日期:2011.3.7
Fluorine makes the difference! Bis(2,2′‐biphenoxy)borates decorated with fluorine substituents have been synthesized and studied in supercapacitor test cells (see scheme). A clear trend towards higher electrochemical stability with the increase of the fluorine content has been observed. For a maximum performance, only two fluorine substituents per benzene moiety are required.