SU236468A1 - - Google Patents

Description

Compounds whose preparation method is dedicated to this opioid can be used as a pesticide.

The proposed method of obtaining S-aryl-Alkylbenzyl tertiophosphonates of the general formula

/ SAr AgSN., R

 OR S

where Ar and Ar are chlorine substituted or unsubstituted phenyl, R is alkyl with 1-4 C, based on the fact that S-aryl benzyl chlorodithiophosphonates are interchanged with alcohol in the presence of catalytic amounts of salts of thiophosphoric or thiophosphonic acid esters or their intermediate products - grained phosphorus and pyridine when heated to 65-120 ° C for 2-20 hours, followed by separation of the target product by known methods. As S-arylbenzylchlordithiophosphoiates, it is possible to use the products of the interaction of thiophenol and dichlorohydrin benzylthiophosphoic acids.

An example. S-Phenyl-O-ethylbeisyl dithiophosphonate.

A mixture of 0.05 g-mol of bieuzhptiophosphonic acid dichlorohydride, 0.05 g-mol of thiofiol, 50 mg of n-colored phosphorous and 80 mg of pyridine are maintained at 150-170 ° C, while

The release of hydrogen chloride will not cease. The reaction mass is maintained in vacuum at 10-15 mm RT. Art. and in the residue, 5-fei11l benzyl dithiochlorphosphonase viscous liquid is obtained. The yield is 100%, PP 1.6660. A mixture of 0.02 g-mol of the obtained S-phenylbenzyldithiochlorphospho-iata and 0.1 g of mol of ethanol is 12 hours. The reaction mixture is maintained at 10–15 lgmHg. Art. The residue in the residue gives the product as a light oily liquid. on 1,6338; dl ° 1.2340; MR of 89.25, cal. 89.48. The yield is 100%.

Found,%; P 10.21; S 20,56.

C ,, HuOPS2.

Calculated,%: R 10.06; S 20.79.

PREMI R 2. 5-2,5-Dichlorophenyl-0-ethylbenzyldithiophosphonate.

A mixture of 0.02 gmol of 5-2.5-dichlorophenylbenzyldithiochlorophosphonate (m.p. 65-67 ° C), 0.1 gmol of ethanol, 0.02 g of phosphorus phosphorus and 0.03 g of pyridine are boiled f reflux for 12 hours. The reaction mass is maintained in vacuum at 100 ° C / 10-15 mm Hg. Art., in the residue, a product is obtained which crystallizes. The yield is 100%, so pl. 95-97 ° C (after washing with cyclohexane).

Properties of ArCHoP / o benzyl dithiophosphonates. ,

OR

I OLG

   V Caliph, -%: SG 18.83; S 16.99.

Similarly, compounds with a quantitative yield, the properties of which are listed in the table, were obtained with a quantitative yield. Substances number I, 2, 10 and the rays according to the method of example 1, the rest - according to the method of example 2.

Subject invention

Claims (3)

1. A method of producing 5-ar, yl-O-alkylbenzene dithiophosphonates, wherein Z-arylbeisylchlorodithiophosphates are reacted with an excess of alcohol in the presence of catalytic amounts of salts of esters of thiophosphoric or thiophosphoric acids or intermediates of their synthesis, a system with a system of thiophosphoric, or thiophosphoric acids or intermediates of their synthesis, a system, and a system of thiophosphoric, or thiophosphoric acids or intermediates of their synthesis, a system with a mixture of thiophosphoric, or thiophosphoric acids or intermediates of their synthesis, a system and a system of thiophosphoric, or thiophosphoric acid or intermediates of their synthesis, a system, and a system of thiophosphoric, or thiophosphoric acid or intermediate products of their synthesis, a system, and a system of thiophosphoric, or thiophosphoric acids or intermediates of their synthesis; and then, by their isolation of the product, the known iriems. 2. A method according to claim 1, characterized in that the products of the interaction with thiophenols and dichloroprophydrase benzylthiophosphonic acids are used as S-arylbenzylchlorodithiophosphonates. 3. The method according to claim 1, distinguished {ict. M. That the heating is carried out to 65-120 ° C.