Metal-free C–N bond-forming reaction: straightforward synthesis of anilines, through cleavage of aryl C–O bond and amide C–N bond
摘要:
An efficient metal-free C-N bond forming reaction through cleavage of aryl C-O bond and amide C-N bond has been developed. This process represents a practical method for the facile construction of anilines with a broad substrate scope and wide functional group tolerance in moderate to excellent yields. (C) 2013 Elsevier Ltd. All rights reserved.
6/7-membered amides via intramolecular amidation of aryl chlorides catalyzed by a Buchwald–Hartwig second generation Pd catalyst (Xphos Pd G2) has been successfully developed. This catalyst system allows the primaryamides which have only modest nucleophilicity to be coupled successfully even with electron rich aryl chlorides in short reaction time. The intramolecular amidationreaction also has good
The present invention provides fungicidal 4-substituted-3-phenyl[(heterocyclylmethoxy)imino]methyl}-1,2,4-oxadiazol-5(4H)-one derivatives of formula (I)
wherein A represents a pyridyl or thiazole group and X1, Y1 to Y5 represent independently different substituents.