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    • 9. 发明授权
    • Process for the preparation of arylamides of heteroaromatic carboxylic acids
    • 用于制备杂芳族羧酸芳基酰胺的方法
    • US06175011B1
    • 2001-01-16
    • US09280975
    • 1999-03-30
    • Jean-Paul RoduitGeorges Kalbermatten
    • Jean-Paul RoduitGeorges Kalbermatten
    • C07D25112
    • C07D241/24B01J31/2295B01J31/2409B01J2231/4205B01J2531/824B01J2531/842C07D213/81
    • A process for the preparation of arylamides of heteroaromatic carboxylic acids of the formula: in which each An is nitrogen or CRn (n=1-5), with the proviso that at least one of the ring members is nitrogen and that two nitrogen atoms are not bonded directly to one another; R1 to R5, if present, independently of one another are hydrogen, C1-4-alkyl or aryl, also one of the substituents R1 to R5 can be a group of the formula —OR, in which R is an optionally substituted aromatic or heteroaromatic radical; R6 is hydrogen or C1-4-alkyl; and R7 is an optionally substituted aromatic or heteroaromatic radical. The amides are obtained from the corresponding heteroaromatic halogen compounds, the corresponding aromatic amines and carbon monoxide in the presence of a palladium diphosphine complex. Compounds of this class, especially those in which one of the substituents R1 to R5 is an aryloxy group, are important herbicides.
    • 制备下式的杂芳族羧酸的芳基酰胺的方法:其中每个An是氮或CR n(n = 1-5),条件是至少一个环成员是氮并且两个氮原子是 不直接相互粘合; R 1至R 5(如果存在)彼此独立地是氢,C 1-4 - 烷基或芳基,取代基R 1至R 5中的一个也可以是式-OR的基团,其中R是任选取代的芳族或杂芳族 激进; R6是氢或C1-4烷基; 并且R 7是任选取代的芳族或杂芳族基团。 在钯二膦配合物存在下,酰胺由相应的杂芳族卤素化合物,相应的芳族胺和一氧化碳获得。 该类化合物,特别是其中一个取代基R 1至R 5为芳氧基的化合物是重要的除草剂。