Herein we report a transition-metal free activation of a particularly stable aromatic carbon–fluorine bond allowing intramolecular aryl–aryl coupling which is orthogonal to carbon–iodine functionality.
Proton-Catalyzed, Silane-Fueled Friedel-Crafts Coupling of Fluoroarenes
作者:Oliver Allemann、Simon Duttwyler、Paola Romanato、Kim K. Baldridge、Jay S. Siegel
DOI:10.1126/science.1202432
日期:2011.4.29
carbon-carbon bonds. The venerable Friedel-Crafts reaction appends alkyl or acylgroups to aromatic rings through alkyl or acyl cation equivalents typically generated by Lewis acids. We show that phenyl cation equivalents, generated from otherwise unreactive aryl fluorides, allow extension of the Friedel-Crafts reaction to intramolecular aryl couplings. The enabling feature of this reaction is the exchange
A compound or pharmaceutically acceptable salts thereof of Formula (I)
wherein the substituents are as defined herein, which are useful as kinase inhibitors.
式(I)化合物或其药学上可接受的盐,其中取代基如本文所定义,可用作激酶抑制剂。
High transverse dipole moment aryl compounds
申请人:SHARP KABUSHIKI KAISHA
公开号:EP1044952A2
公开(公告)日:2000-10-18
A fluorinated phenyl compound having the general formula [1]:
wherein each of s, v and x=0 or 1, each of t and u=1, 2 or 3, and each of y and z=0, 1 or 2; A, B and C are independently selected from conjugated cyclic moieties including heterorings and fused rings; R1 and R3 may be independently cyano, or (C1-C12)alkyl, (C1-C12)alkoxy, (C1-C11) alkoxycarbonyl or (C1-C11)alkylcarbonyloxy which may be fluoro- and/or cyano-substituted; R2=H or F; R4=H or F; and R5=H or F. Such compounds have high transverse dipole moments and are potentially useful in liquid crystal compositions and in devices including same.