


2-Chloro-N-Isopropylacetanilide 
Ring tritiated 2-chloro-N-isopropylacetanilide was taken up rapidly 
by corn and soybean plants. , Metabolism was rapid and.-no intact herbicide 
was detected in the seedlings five days after planting in treated soil, 
A water soluble metabolite containing a carboxy group and an N-isopropyl- 
aniline moiety was the main detoxification product (714, 1155). 
N- (3-Ch loro-4-methy lpheny]}-2-methylpentamide 
This compound prevented uptake of cl4o, but the mechanism or 
metabolism involved was unknown. Substituted anilides, in general, 
inhibit the Hill reaction and some have been shown to form lignin 
complexes (290). 
95 
