氯化螺环磷酸酯的催化合成

Catalytic Synthesis of Dichloropentate

以三氯氧磷、季戊四醇为原料，三氯化铝为催化剂，合成了氯化螺环磷酸酯。当ｎ（季戊四醇）：ｎ（三氯氧磷）：ｎ（三氯化铝）＝１：５．５：０．０６时，反应时间为９ｈ，反应温度为５０℃时，产率约为８０％。和国内外报道的方法相比，产率相同，但反应温度从１００℃降到了５０℃，反应时间缩短了一半。

Dichloropentate is synthesized using phoshorus Oxychloride and pentaerythritol as raw materials, and aluminium chloride as catalyst. The optimum conditions are as follows: pentaerythritol: phosphorus oxychloride: aluminium chloride = l: 5. 5: 0. 06(molar ratio), the reaction time is 9h, the reaction temperature is 50℃, the yield of dichloropentate is hot 80%, the P content of the product is above 20%. Compared with results reported at home and abroad,the the is reduced by 112,the temperature is dropped for l00℃ to 50℃.