alpha,alpha'-Dichloro-p-xylene → Phosphonic acid, P,P'-(1,4-phenylenebis(methylene))bis-, P,P,P',P'-tetraethyl ester

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반응 단계

A mixture of α,α′-dichloro-p-xylene (20 g, 0.114 mol) and triethyl phosphite (60 ml) was refluxed at 180° C. overnight. 80 ml of hexanes was added, and white crystals were formed immediately. Then the mixture was cooled at 0° C., and the product was collected, washed three times with 40 ml of hexanes and isolated in 94.4% (40.8 g) yield.

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