RU94003164A - Method of production of o-aryl-o- (2-aroxycarbonylaryl) phosphate - Google Patents

Claims (1)

A method is proposed for preparing hydrophosphoryl compounds — O-aryl-O- (2-aroxycarbonylaryl) phosphites of the general formula (I)

where A is the same or different 1,2-arylenes, Ar is the same or different aryl radicals. The method is based on the interaction of arylsalicylphosphite in the form of a mixture of monomer and oligomers of the general formula (II)

where A and Ar are the above values, and n ≥ 1, and phenol (or a mixture of phenols) in an equimolar ratio based on the arylsalicylic phosphite monomer. The process is carried out at a temperature of 60 - 100 ° C by the addition of phenol to arylsalicyl phosphite. The target products are obtained with a quantitative yield, they are colorless liquids, soluble in organic solvents and insoluble in water. Obtained (I) and their mixtures (A, Ar, n $\genfrac{}{}{0ex}{}{\text{20}}{\text{D}}$ , d $\genfrac{}{}{0ex}{}{\text{20}}{\text{four}}$ ): C ₆ H ₄ , C ₆ H ₅ , and C ₆ H ₅ , 1,580, 1,2809, t. Bales. 158-160 ° C / 1 mm; C ₆ H ₄ , C ₆ H ₅ and 4-NO ₂ -C ₆ H ₄ , 1.6010, -; C ₆ H ₄ , C ₆ H ₅ and 2-C ₆ H ₅ -C ₆ H ₄ , 1.6040, -; C ₆ H ₄ , C ₆ H ₅ and 2-C ₂ H ₅ OC (O) C ₆ H ₄ , 1.5630, 1.2740.