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 (Jaworski and Porter, 1965). 
N-(3-Chloro-4-methylphenyl -2 methylpentamide 
This compound prevented uptake of cl4o, but the mechanism or metabolism 
involved is unknown. Substituted anilides, in general, inhibit the Hill 
- reaction and some have been shown to form lignin complexes (Colby and 
Warren, 1962). 
2-Chloro-6-trichloromethylpyridine 
Studies were conducted with labeled 2-chloro-6-trichloro-methyl - 
pyridine and golden cross Bantam corn, Imperator carrots, New York Special 
lettuce, Pearson tomatoes, and unnamed oats. Fractionation and chromatography 
showed that the principal metabolite was 6-chloropicolinic acid (Redemann 
et al., 1965). After feeding 2-chloro-6-trichloromethylpyridine to a dog, 
N-(6-chloropicolinyl) glycine was isolated and identified (Redemann et al., 
1966). 
Pag 9 oO 
C C-C13. C c” aa 
2 Non C14 “YC - 
| OH 
2-Chloro-6-tri- 6-Chloropicolinic N-(6-Chloropicolinyl) 
chloromethyl - acid glycine 
pyridine 
49 
