- A process for synthesizing [...] (by machine translation)
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The present invention provides a process for synthesizing [...], including 2-hydrazino -5,5-dimethyl -1, 4, 5, 6-Tetrahydropyrimidines, their production and use hydrochloric acid salt and 1,5-bis-(4-trifluoromethyl phenyl) - 1,4-pentadiene-3-ketone preparation, and the raw material to the two, to isopropanol or ethanol as the solvent, the role of the concentrated hydrochloric acid produces [...]. By changing the synthesis process of the present invention, the reaction efficiency is improved. 2-hydrazino -5,5-dimethyl -1, 4, 5, 6-Tetrahydropyrimidines, their production and use the yield of the hydrochloride salt from 78% to 90% or more. 1,5-double (4-trifluoromethyl phenyl) - 1,4-pentadiene-3-one of the from the literature reports the yield of 83% to 90% or more. (by machine translation)
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Paragraph 0051; 0052; 0053; 0054
(2016/10/10)
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- Acylated pentadienone hydrazone, method for preparing the same, and use as fire ant control agents
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There are provided certain acylated pentadienone hydrazones, and methods of use of said compounds for the control of insects, especially Lepidopterous insects, and for the control of ants, Family Formicidae, especially fire ants.
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- 1,5-BIS(α,α,α-TRIFLUORO-P-TOLYL)-1,4-PENTADIEN-3-ONE (1,4,5,6-TETRAHYDRO-2-PYRIMIDINYL)HYDRAZONES
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The invention is 1,5-bis(α,α,α-trifluoro-p-tolyl)-1,4-pentadien-3-one (1,4,5,6-tetrahydro-2-pyrimidinyl)hydrazones which are useful insecticides.
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- Pentadienone hydrazones as insecticides
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The invention relates to a method for controlling insects by contacting the insects, and/or applying to their habitat or food supply, with an insecticidally effective amount of a compound of the formula: STR1 wherein R1 and R2 each represent hydrogen, halogen, CF3, C1 -C4 alkyl, C1 -C4 alkoxy or C1 -C4 alkylthio; R3 is hydrogen or methyl, provided that when R3 is methyl, R1 and R2 are also methyl; R4 and R5 represent hydrogen or C1 -C4 alkyl, and when taken together, an alkylene group of 2 to 6 carbon atoms, methyl or a phenyl alkylene group of 2 to 4 carbon atoms, a dimethyl alkylene group of 2 to 4 carbon atoms or 1,2-cyclohexylene; and R6 is hydrogen or C1 -C4 alkyl; and salts thereof.
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