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1)  Phosphonic acid, diethyl ester
二乙基亚磷酸酯
2)  diethyl phosphite
亚磷酸二乙酯
1.
In one-pot synthesis of diethyl chlorophosphate (DCP) from phosphorus trichloride,anhydrous alcohol and carbon tetrachloride,carbon tetrachloride was used as material and solvent,and the intermediate diethyl phosphite was not isolated from the reaction mixture but directly reacted with carbon tetrachloride.
四氯化碳既为原料又兼作溶剂,反应在无溶剂条件下进行,中间体亚磷酸二乙酯不经分离,直接与四氯化碳反应。
2.
The paper studies the synthesis of diethyl phosphite in the absence of organic solvent and discusses the effects of its reaction temperature,reaction time,vacuum,mixture ratio and feeding mode on the yield of the product.
本文研究了无溶剂法合成亚磷酸二乙酯的反应温度、反应时间、真空度、配料比和加料方式对产物收率的影响 ,找出了最佳反应条
3)  diethyl phophite (DEPH)
亚磷酸二乙酯(DEPH)
4)  dialkyl phosphite
亚磷酸二烷基酯
1.
The polymerization of isoprene with iron acetylacetonate(Fe)/triisobutylaluminum(Al)/dialkyl phosphite(DP) catalyst was examined with respect to the effects of different dialkyl phosphites (methyl,ethyl,n-butyl and iso-octyl),the ratios of the catalyst components,polymerization temperature and time.
以乙酰丙酮铁 (简称Fe) /三异丁基铝 (简称Al) /亚磷酸二烷基酯 (简称DP)为催化体系 ,对异戊二烯进行聚合 ,考察了不同DP(烷基为甲基、乙基、正丁基或异辛基 )、催化剂组成及反应条件对聚合的影响。
2.
The method for synthesizing dialkyl phosphite from phosphorus trichloride was improved.
对用三氯化磷和醇合成亚磷酸二烷基酯方法进行了改进。
3.
Methods of synthesizing dialkyl phosphite are described, the reaction principle, the used solvents, and properties of the synthesized dialkyl phosphite from phosphorus trihalidc and corresponding alcohols, are disccussed, especially.
对亚磷酸二烷基酯的各种合成方法进行了介绍,主要讨论了由三卤化磷和对应醇制备亚磷酸二烷基酯的合成反应、反应所采用的溶剂及合成的亚磷酸二烷基酯的性质。
5)  dibenzyl phosphite
二苄基亚磷酸酯
1.
Synthesis of dibenzyl phosphite and improvement of the process;
二苄基亚磷酸酯的合成及纯化工艺改进
2.
Benzalcohol was treated with phosphorus trichloride in presence of triethylamine in toluene at room temperature for 10h to give dibenzyl phosphite,which reacted with a solution of sodium hydroxide and carbon tetrachloride to give sodium dibenzyl phosphate.
以苯甲醇、三氯化磷为原料,甲苯为溶剂,在三乙胺存在下制得二苄基亚磷酸酯,无须纯化,在33%氢氧化钠水溶液-四氯化碳体系中反应制得二苄基磷酸酯钠盐,然后经酸化,乙酸乙酯-石油醚(60~90℃)精制,得标题化合物。
6)  Dial kyl phosphite
二烷基亚磷酸酯
补充资料:二乙基亚磷酸酯
分子式:C4H11O3P
分子量:138.10
CAS号:762-04-9

性质:无色油状液体。沸点187-188℃,87℃(2.67kPa),50-51℃(0.267kPa),相对密度1.0720,折光率1.4101,闪点90℃。溶于醇、醚等有机溶剂,不溶于水,在热水中分解。

制备方法:由乙醇与三氯化磷反应而得。

用途:用作萃取剂、磷酸酯的中间体。用于制备磷酸二乙酯、O,O-二乙基-S-苄基硫代磷酸酯,后者即稻瘟净。这是投入大规模生产的有机磷杀菌剂的第一个品种,被用来代替汞剂防治水稻稻瘟病,对防治水稻小粒菌核病、纹枯病、枯穗病也有一定的效果。

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