The way to obtain 1-phenyl-trans-3,4-dialkylphosphorous

 

The invention relates to a method for producing 1-phenyl-TRANS-3,4-dialkylphosphorous General formulawhere R = n-C4H9the h6H13n-C8H17that is in interaction-olefins with atelecommunications and metallic magnesium in the presence of a catalyst Cp2ZrCl2in an argon atmosphere in the environment of the solvent for 8 h followed by the addition at a temperature of -15oWith CuCl as catalyst and phenyldichlorophosphine, followed by stirring the reaction mass for 8-12 h at room temperature. These compounds may find application in thin organic synthesis, as plasticizers, flame-retardant impregnation for nitrate and cellulose acetates, in the manufacture of insecticides, serve as additives to improve the quality of gasoline and lubricating oils, are used as surfactants in textile industry. The technical result - individual 1-phenyl-TRANS-3,4-dialkylphosphorous with high Regio - and stereoselectively. table 1.

Description text in facsimile form (see graphic part)and

where R = n-C4H9the h6H13n-C8H17,

characterized in that-olefins of General formula

where R=n-C4H9the h6H13H-C8H17,

subjected to interaction with atelecommunications (EtAlCl2) and metallic magnesium in a molar ratio: EtAlCl2:Mg equal to(20-22):(10-12):10, in the presence of a catalyst of zirconatetitanate (Cp2ZrCl2), taken in an amount of 3-7 mol.% with respect to the metal magnesium in an argon atmosphere at room temperature and atmospheric pressure in THF as solvent for 8 h followed by the addition at a temperature of -15°C catalyst odnoklasniki copper (CuCl), taken in an amount of 8-12 mol.% in relation to the original-olefin, and phenyldichlorophosphine PhPCl2in equimolar towards EtAlCl2the number and stirring the reaction mass for 8-12 h at room temperature.

 

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9 ex, 1 tbl

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5 dwg, 4 tbl, 3 ex

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2 cl, 1 ex, 1 tbl

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