摘要:
N-(Substituted-phenyl)-5-fluoromethyl-1,2,4-triazolo[1,5-a]pyrimidine-2-sulfonamides of formula wherein: Y' is H, OH, Cl, CH₃, C₂H₅, OCH₃, OC₂H₅, or SCH₃; R¹ is H, F, Cl, Br, CH₃, CF₃, NO₂, CO₂(C₁-C₄ alkyl), or CON(C₁-C₄ alkyl)₂; R² is H or CH₃; and R³ is F, Cl, Br, NO₂, CO₂(C₁-C₄ alkyl), CON(C₁-C₄ alkyl)₂, OCH₃, or OC₂H₅; are prepared from 2-benzylthio-5-fluoromethyl-1,2,4-triazolo[1,5-a]-pyrimidines and found to be herbicidal and selective to wheat and cotton, and some compounds are degradable in the soil.
摘要:
Alkyl 3-chloroanthranilates are the major product from the chlorination of alkyl esters of anthranilic acid with 1,3-dichloro-5,5-dimethylhydantoin. The 3-chloro isomer can be readily separated from the accompanying 5-chloro isomer by selective acetylation of the latter.
摘要:
Novel compounds, e.g., 5,7-dimethyl-N-(2,6-dichlorolphenyl)-1,2,4-triazolo[1,5-a]pyrimidine-2-sulfonamide and their compositions and use in the control of weeds and in the suppression of nitrification of ammonium nitrogen in soil. Other novel compounds and their compositions and use in the inhibition of bolting in sugar beets.
摘要:
Alkyl 3-chloroanthranilates are the major product from the chlorination of alkyl esters of anthranilic acid with 1,3-dichloro-5,5-dimethylhydantoin. The 3-chloro isomer can be readily separated from the accompanying 5-chloro isomer by selective acetylation of the latter.