申请人:Reichert Wolfgang
公开号:US20110054183A1
公开(公告)日:2011-03-03
A process for preparing arylcarboxamides of the formula (I)
where
Ar =a mono- to trisubstituted phenyl, pyridyl or pyrazolyl ring, where the substituents are selected from halogen, C
i
-C
4
-alkyl and C
1
-C
4
-haloalkyl;
M =thienyl or phenyl, which may bear a halogen substituent;
Q =direct bond, cyclopropylene, fused bicycio[2.2.1]heptane or bicyclo[2.2.1]heptene ring;
R
1
=hydrogen, halogen, C
1
-C
6
-alkyl, C
1
-C
4
-alkoxy, C
1
-C
4
-haloalkoxy, mono- to trisubstituted phenyl, where the substituents are selected from halogen and trifluoromethylthio, or cyclopropyl;
by reacting an acid chloride of the formula (II)
with an arylamine (III)
in a suitable nonaqueous solvent, wherein, in the absence of an auxiliary base,
a) the acid chloride (II) is initially charged,
b) a pressure of from 0 to 700 mbar is established,
c) the arylamine (III) is metered in in an approximately stoichiometric amount and
d) the product of value is isolated.
一种制备式(I)的芳基羧酰胺的方法,其中Ar = 单取代至三取代苯基、吡啶基或吡唑基环,取代基选自卤素、Ci-C4-烷基和C1-C4-卤代烷基;M = 噻吩基或苯基,可以带有卤素取代基;Q = 直链键、环丙烯基、融合的双环[2.2.1]庚烷或双环[2.2.1]庚烯环;R1 = 氢、卤素、C1-C6-烷基、C1-C4-烷氧基、C1-C4-卤代烷氧基、单取代至三取代苯基,其中取代基选自卤素和三氟甲硫基,或环丙基;通过在适当的非水溶剂中将式(II)的酸氯与芳香胺(III)反应,其中,在没有辅助碱的情况下,a) 首先加入酸氯(II),b) 建立0至700毫巴的压力,c) 以近似化学计量的量滴定芳香胺(III),d) 分离所得产物的价值。