Daimuron

Daimuron is a member of ureas.

Preparation of p-tolulurea by p-tolulurea method Sodium cyanate and p-toluidine hydrochloride aqueous solution are reacted, the reaction temperature is controlled at 30 ℃, and the sodium cyanate is slightly excessive to obtain p-tolulurea. Sodium cyanate can be calcined with urea and sodium carbonate. Preparation of chlorocumene 2-phenylpropene is added with hydrogen chloride in acetonitrile solvent, and chlorine atoms are introduced into the side chain to generate chlorocumene. The synthesis of meturon The action of p-toluamide and cumene to synthesize meturon. Add 0.15 mol of p-toluamide, 0.1 mol of cumene chloride, 48 g of α-methyl styrene and 160 g of acetonitrile, stir and react at 40° C. for 6 hours, and let stand at room temperature to separate out 32 g of crystals with a yield of 80%. α, α-Dimethylbenzyl isocyanate method This method is to react α, α-dimethylbenzyl chloride with sodium cyanate in the presence of a non-aqueous organic solvent and a metal chloride catalyst to obtain α, α-dimethyl Benzyl isocyanate is filtered to remove the by-product sodium chloride, and then added with p-toluidine to prepare trituron with good yield. Such as: add 50mL ethyl acetate, 90% sodium cyanate 6.5g (90mmol), zinc chloride (0.5mol), pyridine (1mmol) into the reactor, stir and heat to 50℃, and then add α, α-di 7.73g (50mmol) of methyl benzyl chloride was reacted at 50°C for 1h. Prepared α, α-dimethylbenzyl isocyanate. α, α-Dimethylbenzyl isocyanate and p-toluidine are added to toluene or chlorobenzene to obtain trituron in almost quantitative yield. This method has mild reaction conditions, high yield, easy-to-obtain raw materials, and few wastes, so it is recommended by people. Acid Chloride Method This process route has no reports of industrial application.

A new type of urea herbicide. Whether it is in the light or the dark, it has a strong inhibitory effect on the germination of sensitive plants, so this product is not an inhibitor of photosynthesis. This product is absorbed by the roots of plants and can significantly inhibit the elongation of roots and underground stems, so as to control the growth of aboveground parts, so its effect is delayed. It has a special effect on sedge family weeds, and can safely control the special-shaped falling grass, triangular grass, and ox grass of rice, cotton, corn, soybean and other crops, and the effect is good.

Molecular Weight:268.35
XLogP3:3.4
Hydrogen Bond Donor Count:2
Hydrogen Bond Acceptor Count:1
Rotatable Bond Count:3
Exact Mass:268.157563266
Monoisotopic Mass:268.157563266
Topological Polar Surface Area:41.1
Heavy Atom Count:20
Complexity:313
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes