Preparation of N-[(1-(thienyl)alkyl]amine derivative
申请人:Daikin Industries, Ltd.
公开号:US05117000A1
公开(公告)日:1992-05-26
N-[1-(Thienyl)alkyl]amine derivative of the formula: ##STR1## which has excellent herbicidal activity against lowland annual weeds and upland weeds, can be prepared by reacting a thiophen derivative of the formula: ##STR2## with an aldehyde of the formula: ACHO and an amide of the formula: NH.sub.2 --CO--R in the presence of formic acid or a mixture of formic acid with phosphoric acid wherein Z is halogen, alkyl or alkoxy group; (n) is 0, 1 or 2; A is hydrogen or alkyl group; R is alkyl group, group of the formula: ##STR3## in which X and Y are hydrogen, alkyl group, haloalkyl group, alkoxy group, alkoxymethyl group or halogen, or group of the formula: ##STR4## in which Z and (n) are the same as defined above.