The mixture was refined by sodium sulfide and sodium hydroxide to afford an O,O-diethyl thiophosphoryl chloride at a purity of 99%.

该粗品通过精制工艺改进,采用硫化和氢氧化合物进行处理,得到纯度≥99%O,O-二乙基硫代磷酰氯。

A new method for the synthesis of 1 methyl 3 propylpyrazole 5 carboxlic acid from 2 pentanone and diethyl oxalate is reported.

以2-戊酮和草酸二乙酯为起始原料,经缩合、与基肼环合、水解三个步骤合成了1-基-3-丙基吡-5-羧酸。

This paper reports the improvement on the synthesis of 5 methylisoxazol 3 formamide by Claisen condensation of diethyl oxalacetate followed by cyclization and ammonolysis.

讨论了以草酸二乙酯为原料,经过克莱森缩合、环合、氨解反应合成5基3酰胺工艺改进。

Entomologist Stephen Doggett, who runs the NSW Health arbovirus program which monitors mosquitoes and the diseases they carry is firmly in the DEET (diethyl toluamide) camp.

负责新南威尔士卫生局虫媒病毒项目昆虫学家斯蒂芬·多格特赞成使用避蚊胺。该项目监控蚊子和它们自身携带多种疾病。

The synthesis of tridecane dicarboxylic acid diethyl ester with ethyl alcohol and tridecane dicarboxylic acid as reactants and cation exchange resin as catalyst had been studied.

以强酸性阳离子交换树脂为催化剂,十三碳二元酸与乙醇为原料合成十三碳二元酸二乙酯,考察了影响反应因素。