Structure—Activity Correlations for Meta- and Para-Substituted Trifluoromethane-sulfonanilide Pre-Emergence Herbicides

Yapel, Anthony F.

doi:10.1021/ba-1972-0114.ch012

Cited by 3 publications

(3 citation statements)

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“…1,1-Difluoromethanesulfonyl chloride, 1,1-difluoro-lV-phenylmethanesulfonamide (16), and lV-(4-chlorophenyl)-l,l-difluoromethanesulfonamide (30) were prepared according to Farrar.22 The synthesis of lV-(3-benzoylphenyl)-l,l-difluoromethanesulfonamide (17) has been described.2 1.1-Difluoromethanesulfonamide (12). Ammonia was bubbled for 2 hr into a stirred solution of 1,1-difluoromethanesulfonyl chloride (15.1 g, 0.1 mol) in dichloromethane (100 ml) at 0°.…”

Section: Discussionmentioning

confidence: 99%

“…Received September17, 1973 The product composition and the dependence of the reaction rates on acidity for the nitration of methyl phenyl sulfoxide in 83-100% sulfuric acid have been determined. The observed behavior compared with that of diphenyl sulfoxide and the dimethylphenylsulfonium ion shows that the species B and BH+ present at equilibrium are involved in the nitration of sulfoxide compounds.…”

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confidence: 99%

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Acidites and partition coefficients of fluoromethanesulfonamides

Trepka¹,

Belisle²,

Harrington³

1974

J. Org. Chem.

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The half-neutralization potentials (HNP) of a series of biologically active fluoromethanesulfonamides were determined in 67% N, N-dimethylformamide-water. A plot of aqueous pKa vs. HNP for nine methanesulfonamides and fluoromethanesulfonamides in the series was used to calculate the pKa's of the remaining water-insoluble sulfonamides. The pKa's of eight aryl-substituted 1,1,1 -trifluoro-lV-phenylmethanesulfonamides correlated better with the Hammett substituent constant than with ~or

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Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

Acidites and partition coefficients of fluoromethanesulfonamides

Trepka¹,

Belisle²,

Harrington³

1974

J. Org. Chem.

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“…The residue was extracted with chloroform. The extract was washed with water, dried over (14). To a solution of 10 (0,83 g, 5 mmol) in acetone (25 ml) was added dropwise a solution of phenol (0.47 g, 5 mmol), sodium hydroxide (0.21 g, 5 mmol) and water (2 ml) in acetone (20 ml).…”

Section: ) Synthesis Of Compoundsmentioning

confidence: 99%