cas 34014-18-1, 1-(5-tert-Butyl-1,3,4-thiadiazol-2-yl)-1,3-dimethylurea

Articles about 34014-18-1Total 8 be found

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Industrial production method of tebuthiuron active compound
The invention discloses an industrial production method of a tebuthiuron active compound. The method comprises the following steps: (1) dissolving a raw material 2-methylamino-5-tertbutyl-1, 3, 4-thiadiazole in an inert solvent to prepare an inert solvent solution with a certain concentration; (2) carrying out a photochemical reaction on the 2-methylamino-5-tertbutyl-1, 3, 4-thiadiazole toluene solution and phosgene or a diphosgene or triphosgene solution; (3) removing phosgene from the material after the photochemical reaction is finished; (4) carrying out amidation reaction on the phosgene-removed material and monomethylamine gas; and (5) after the amidation reaction is finished, carrying out post-treatment on the material to obtain the tebuthiuron product. The product quality is more stable. The device investment is reduced, the device production capacity is improved, the technological process is simpler, and continuous self-control operation of the device is facilitated.
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Paragraph 0031; 0037-0040; 0047-0049

(2021/11/10)

Synthetic method of 1,3,4-thiadiazole derivative
The invention discloses a synthetic method of a 1,3,4-thiadiazole derivative. The method comprises the following steps: (1) using hydrazine hydrate as a raw material, under the action of a catalyst, reacting with acid, to obtain a hydrazide compound I; (2) using alkyl chloroformate and thiocyanate to react in a condition of a solvent, to obtain an isothiocyanate compound II; (3) in a reaction system of the isothiocyanate compound II, adding solution containing the compound I, reacting to obtain solution containing a compound III; (4) processing the solution of the compound III by dehydrating,neutralizing, and washing, to obtain a compound IV; (5) in the conditions of an acid-binding agent and a solvent, adding alkyl halide or sulfuric acid diester into the compound IV, reacting to obtaina compound V; and (6) enabling the compound V to perform an amination reaction with primary amine, to obtain the 1,3,4-thiadiazole derivative VI. The preparation method has the advantages of green andno pollution, simple and convenient operation, higher yield, mild reaction condition and the like.
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(2018/12/05)

NOXIOUS ARTHROPOD CONTROL AGENT CONTAINING AMIDE COMPOUND
An object of the present invention is to provide a compound having the controlling activity on a noxious arthropod, and a noxious arthropod controlling agent containing an amide compound of formula (I): wherein X represents a nitrogen atom or a CH group, p represents 0 or 1, A represents a tetrahydrofuranyl group or the like, R1, R2, R3, R4, R5, R6 and R7 represent a hydrogen atom or the like, n represents 1 or 2, Y represents an oxygen atom or the like, m represents any integer of 0 to 7, and Q represents a C1-8 chain hydrocarbon group optionally having a phenyl group or the like, has the excellent noxious arthropod controlling effect.
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(2017/08/26)

A method for synthesizing special Ding Saicao is prosperous (by machine translation)
The present invention provides a method for synthesizing special Ding Saicao is prosperous, in order to 1,3-dimethoxy ylurea and 5-tert-butyl -1, 3, 4-thiadiazole derivatives in alkaline condition reaction special Ding Saicao is prosperous. The method solves the problem that the conventional method with the use of toxic substances in methyl isocyanate, N-methyl formyl chloride or phosgene and security risk, the difficulties and problems such as the production operation. (by machine translation)
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Paragraph 0030; 0031

(2016/10/10)

Process for preparing herbicidal ureas and insecticidal carbamates and carbamate derivatives
The present invention provides a process for preparing herbicidal ureas and insecticidal carbamates and carbamate derivatives comprising reacting an amine, alcohol, or oxime nucleophile with a urea in an inert organic solvent.
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(2008/06/13)

Process for preparing ureas
The present invention provides a novel process for preparing herbicidal and insecticidal ureas, carbamates and carbamate derivatives of the formula E is -O- or -C(R4)2- ;, R is C1-C7 alkyl;, R1 is H, C1-C7 alkyl, C3-C7 cycloalkyl, phenyl, or C1-C4 alkylphenyl;, R2 is H, C1-C7 alkyl, C3-C7 cycloalkyl, C2-C7 alkenyl, C2-C7 alkynyl, or phenyl optionally substituted with Cl, Br, -NO2, -CF3, C1-C4 alkyl, C1-C4 alkoxy, or -N(C1-C4 alkyl)2;, R3 is H, F, Cl, Br, -CF3, C1-C7 alkyl option-ally substituted with F, Cl, or Br, -S(O)nC1-C7 alkyl, C1-C7 alkoxy, C3-C7 cycloalkyl optionally substituted with F, Cl, or Br, or phenyl optionally substituted with F, Cl, Br, -NO2, -CF3, or C1-C4 alkyl;, R4 is H or C1-C4 alkyl;, R5 is C1-C7 alkoxy or -S(O)nC1-C7 alkyl;, R6 is C1-C5 alkyl optionally substituted with F, Cl, or Br, C3-C5 cycloalkyl, phenyl, or, , - X is R3, -N=CH-N(C1-C4 alkyl)2, -N(C1-C4 alkyl)2 or -N(C2-C4 alkenyl)2, Y is H or S(O)nC1-C7 alkyl;, Z is H, C1-C4 alkyl, Cl, F, Br, haloalkyl, -NO2, -N(C1-C4 alkyl)2, -C≡N, phenyl, -S(C1-C4 alkyl), or C1-C4 alkoxy;, n is 0, 1, or 2; and, m is 1, 2 or 3,comprising reacting a nucleophile of the formula A-H, wherein A is as defined above, with a urea of the formula wherein each R is independently chosen from R as set forth above and each R1 is independently chosen from R1 as set forth above.
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(2008/06/13)

Process for preparing the compound 5-t-butyl-2-methylamino-1,3,4-triadiazole
A process for preparing the compound 5-t-butyl-2-methylamino-1,3,4-thiadiazole, STR1 in high yield by the reaction of 4-methyl-3-thiosemicarbazide with pivalic acid in a solution containing both polyphosphoric acid and concentrated sulfuric acid, followed by neutralizing the reaction mixture with a neutralizing mixture comprising an organic solvent and an alkaline substance dissolved in water and separating 5-t-butyl-2-methylamino-1,3,4-thiadiazole from the organic phase.
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(2008/06/13)

Herbicidal method
There is disclosed a method of controlling unwanted vegetation in fallow wheatland by the application of a substituted thiadiazol-2-ylurea following the harvesting of the wheat crop.
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(2008/06/13)

Chemical Properties

Appearance/Colour :Colorless odorless crystals
Melting Point: 161-164°C
Density: 1.186 g/cm³
Storage Temp.:0-6°C
Refractive Index: 1.554
PKA: 13.36±0.46(Predicted)
Merck: 14,9095
BRN: 527479
PSA: 86.36000
LogP: 2.00210

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34014-18-1

Articles about 34014-18-1Total 8 be found

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Chemical Properties

Appearance/Colour :Colorless odorless crystals

Melting Point: 161-164°C

Density: 1.186 g/cm³

Storage Temp.:0-6°C

Refractive Index: 1.554

PKA: 13.36±0.46(Predicted)

Merck: 14,9095

BRN: 527479

PSA: 86.36000

LogP: 2.00210

Global suppliers and manufacturers of 34014-18-1total 100 suppliers on LookChem

Article Database

34014-18-1

Articles about 34014-18-1Total 8 be found

More Articles about upstream products of 34014-18-1

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Chemical Properties

Appearance/Colour :Colorless odorless crystals

Melting Point: 161-164°C

Density: 1.186 g/cm3

Storage Temp.:0-6°C

Refractive Index: 1.554

PKA: 13.36±0.46(Predicted)

Merck: 14,9095

BRN: 527479

PSA: 86.36000

LogP: 2.00210

Global suppliers and manufacturers of 34014-18-1total 100 suppliers on LookChem

Density: 1.186 g/cm³