- HYDROLYSIS OF FLUOROALKYL-CONTAINING β-AMINOVINYL KETONES
-
The kinetics of hydrolysis of fluoroalkyl-containing β-aminovinyl ketones R1C(O)CHC(NHR3)R2, in which the substituents CF3 and HCF2CF2 are in the ketone (R1) or enamine parts of the molecule (R2), was studied.In acid (pH 10) media, they hydrolyze with the formation of the corresponding amines and β-diketones.In an alkaline medium, the β-diketones undergo cleavage to fluorinated acids and methyl ketones.The rate constants of hydrolysis in an acid medium change within a range of four orders, depensdng on the nature of the substituents.The presence of a fluoroalkyl group at the enamine reaction center increases the hydrolysis rate.In an alkaline medium, the rate constants vary within one order.
- Bazhenova, L. N.,Filyakova, V. I.,Kirichenko, V. E.,Pashkevich, K. I.
-
p. 581 - 585
(2007/10/02)
-
- 5,6-Dihydro-1,2,4,6-thiatriazin-5-one-1,1-dioxides
-
5,6-Dihydro-1,2,4,6-thiatriazin-5-one-1,1-dioxides of the formula STR1 where R1 is hydrogen, a metal atom or an unsubstituted or substituted ammonium radical, R2 is a saturated or unsaturated straight-chain aliphatic radical of up to 10 carbon atoms, a cycloaliphatic radical or 3 to 7 carbon atoms, a branched saturated or unsaturated aliphatic radical of 3 to 10 carbon atoms, a halogen-, alkoxy- or alkylmercapto-substituted aliphatic radical of 2 to 10 carbon atoms tetrahydrofuryl substituted methyl, a cycloalkoxy-substituted aliphatic radical of 4 to 10 carbon atoms, unsubstituted or halogen-substituted benzyl or phenyl, halophenyl, or alkylphenyl of a total of up to 10 carbon atoms, R3 is hydrogen, a straight-chain aliphatic radical of up to 10 carbon atoms, a cycloaliphatic radical of 3 to 7 carbon atoms, a branched aliphatic radical of 3 to 10 carbon atoms, haloalkyl, or alkoxyalkyl of 2 to 10 carbon atoms and X is oxygen and may also be sulfur if R2 is unsubstituted or halogen-substituted benzyl, processes for their preparation, and herbicides containing the above compounds.
- -
-
-
