SU668284A1 - Ctivity - Google Patents

Description

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The invention relates to the field of chemistry of organophosphorus compounds, namely, to new isothiuronium syngas of phosphororganic sym-triazines of the general formula

t.

Bk ,, JL-NHCHp (iH20 (NHPlX) (0 (} zH5) 9 (1

And

where R is a methoxy or isopropyllamino group at X is sulfur, or R is a diethylamino group.

genus with herbicidal activity.

The isothiourneum salt of sim-triazine of the formula

 -No

$ (11

(igHsHN-k J-JIHC lls

N

Vl5p6scha with gerbvdid selective action in crops of corn, cotton, beans and cabbage C.

The disadvantage of symmetry-triazine herbicides is Their long-term aftereffect.

Phosphoryl derivatives of symm-triisins of the general formula are also known.

Z

o

 l

AT,

 L-CFa -S- Nflj

.Ba.a-H,,

5 l-za / iozef /,} (, (, - i

Y

also herbicidal 2

However, these compounds are insufficiently xqpomo soluble in water, which makes it difficult to use them.

iby from the SMM-griaein range - Sima, except for doses of 2.5-.5 kg / ha, does not have a choice of network {s, and gphometrin in the death of oats and sunflower, which doesn’t matter if it is | 4.

The aim of the invention is to expand the arsenal of organophosphate compounds with herbicidal activity 10

The goal is to be described by the compounds of formula (l)

The compounds of formula (1) contain an isothiuronic group, which increases the solubility of the compounds in iodine, and 45 organoformate residue, which facilitates the rapid destruction of herbicides in the external environment and prevents the accumulation of poisonous residues on plants.

The compounds of formula (1) are obtained by boiling for several hours with equimolecular amounts of 2-chloro-4-N-oxyethipamino-simm-triazines and tripene in an anhydrous organic solvent,

Example., Obtaining, chloride 5 - (2-diethylamino-4) | at | -diethylphosphoryl (carbamoyloxyethylamino-symm-triazinyl | -6) -isubthiur6i. ;

A mixture of 1 g (0.00236 mol) of 2-chloro-4-dietyPamino-6-) H-diethylphosphoryl) carbamoyloxyethylamino-symm-triazine and 0.18 g of {0, OO236 gu1ol) thiophenol in 30 ml of anhydrous acetone is boiled 16 h, Acetone solution is cooled, filtered off, washed with benzene, dried in a vacuum at. Obtain 0.82 g (70%) of 5- (2-diethylamino-4-) N-diethylphosphoryl) -carbamoyloxyethylamino-symm-triazinyl-6 chloride, isothoi bony, Tpl. 146.5-148 p.

Compounds are obtained similarly, the properties of which are shown in Table 1,

ta

ia ti "o

 B: (i7668 IR spectra of the obtained compounds with merlag absorption bands at 1720. 1730 cM-Vc 0 / 1650-1660 W) and wide bands at 3250 and ZZOO CM- (N-H). Tests of preparations are carried out under green conditions by spraying Herbicide activity 848 soil swabs until germination of seedlings and by treatment in a phase of 2-3 leaves. Compounds are administered at a dose of 5 kg / ha of active ingredient. Indicator plants are oats, millet, peas, mustard. The results of the tests are presented in Table 2. Table 2 of the following general formulas: (I)

Claims (4)

Claim Phosphorus-containing isothiuronium salts of • general sym triazines I ABOUT The source of information accepted ’levied upon examination 1. Copyright certificate of the USSR .V? 219324, cl. A 01 N 9/22, 1968. 2. England patent X? 1050451, cl. C 2 C, published. 1963. . 3. Melnikov Η. N. Chemistry and technology of pesticides, '' Chemistry * ', M „1974, p. 669. 4. Ibid., P. 670.