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tripropyl orthoformate 原甲酸三丙酯
Aim\ Enanthal diethyl acetal is prepared with heptaldehyde and triethyl orthoformate as raw materials. 目的研究以庚醛和原甲酸三乙酯为原料制备庚醛二乙缩醛的工艺条件。
We confirmed the stability and reliability of CE-ECL instrument newly devised by separating and analyzing the mixure solution of tripropyl amine and Pro with it. 本论文建立了毛细管电泳(CE)-电化学发光(ECL)分离检测氨基酸的方法，特别在临床样品检测方面做了相关研究。
The new way of synthesis triethyl orthoformate in one step was advanced using ch loroform，solid natrium hyelroxide and anhydrous ethanol. 提出采用氯仿、固体氢氧化钠和无水乙醇一步合成原甲酸三乙酯的新方法。
The target compound was synthesized from 1 bromo 3 chloro propane by amination and Grignard reaction with ethyl orthoformate. [方法 ]以 1-溴 - 3-氯丙烷为原料 ,胺化后 ,与原甲酸三乙酯进行格氏加成反应 ,得目标化合物。
The dehydrating agent and the dehydrating condition on removal of trace water in the synthetic solution of triethyl orthoformate were investigated. 研究了原甲酸三乙酯一步法合成反应中脱除微量水分的脱水剂和脱水条件,通过正交实验确定了脱水的最优化工艺条件。
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Cyclohexanone diethyl acetal was prepared from cyclohexanone with anhydrous ethanol as reactant, ammonium chloride as catalyst, triethyl orthoformate as water scavenger. 其制备方法是以氯化铵为催化剂,原甲酸三乙酯为解水剂,由无水乙醇和环己酮缩合合成。
This paper discussed the technic of 1H-tetrazole-1-acetic acid with ethyl orthoformate glacial acetic acid,sodium azide as the material.We obtained the proper techic route. 本文主要探讨了使用原甲酸三乙酯、冰醋酸、叠氮化钠等原料生产1H-四氮唑-1-乙酸的工艺过程,精选出了适宜的工艺路线。
Butenal diethyl acetal was prepared by the reaction of triethyl orthoformate with allylmagnesium chloride obtained by the reaction based on magnesium and allyl chloride. 摘要以烯丙基氯与金属镁反应制得烯丙基氯化镁，再与原甲酸三乙醇反应，合成了3-丁烯醛缩二乙醇。
A new kind of bicyclic ortho ester,4-( hydroxymethyl)-2.6,7- trioxabicyclo[2.2.2] octane was synthesized by the reaction between trimthyl orthoformate and pentaerythritol without catalyst. 由原甲酸三乙酯与季戊四醇为原料制备了一种双环原酸酯4-羟甲基-2,6,7-三氧杂二环(2,2,2)烷,并提供了一条简单可行的合成途径。
The applications and synthetic methods of 2,2 - dimethoxy propane from different materials including methylacetylene and methanol , acetone and methanol, trimethyl orthoformate and acetone, acetone ketal of polyhy-dric alcohol and methanol were reviewed. 综述了采用不同原料即丙炔和甲醇、丙酮和甲醇、原甲酸三甲酯和丙酮、丙酮缩多元醇与甲醇合成2,2-二甲氧基丙烷的方法及其应用。
Using ethyl cyanoacetate, triethyl orthoformate and methylhydrazine as main raw materials, the herbicide pyrazosulfuron was prepared through the reactions of substitution, amination, cylclization, diazotization and chlorosulfonation. 摘要以氰乙酸乙酯、原甲酸三乙酯和甲肼等为主要原料，通过取代、胺化、环化、重氮化和氯磺化等反应制得了除草剂吡嘧磺隆原料药。
A new kind of bicyclic ortho ester,4-(hydroxymethyl)-2.6,7-trioxabicyclo[2.2.2]octane was synthesized by the reaction between trimthyl orthoformate and pentaerythritol without catalyst. 由原甲酸三乙酯与季戊四醇为原料制备了一种双环原酸酯4-羟甲基-2,6,7-三氧杂二环(2,2,2)辛烷,并提供了一条简单可行的合成途径。
A new process has been developed to synthesize dimethoxyacetic acid methyl ester from 50% solution of glyoxylic acid and methyl orthoformate through catalyzing by concentrated sulfuric acid. 以质量分数50%25乙醛酸水溶液和原甲酸三甲酯为主要原料,经浓硫酸催化,合成二甲氧基乙酸甲酯。
Methyl orthoformate is obtained by the reaction of CHCl3 with CH3ONa. The reaction is investigated through the change of temperature, material ratio, and pressure. The optimal conditions are given. 讨论了温度、物料配比及压力对原甲酸三甲酯收率的影响，找出了最佳反应条件。
One Step Synthesis of Triethyl Orthoformate 原甲酸三乙酯一步合成研究
Keywords triethyl orthoformate;gas chromatography;analysis; 原甲酸三乙酯;气相色谱法;分析;
Keywords nickel alloy;phosphorus alloy;amorphous alloy;hypophosphite acid;tripropyl amine;sulfolene; 镍合金;磷合金;非晶态合金;次磷酸;三正丙胺;环丁烯砜;
Keywords low-valent titanium reductive coupling imines triethyl orthoformate; 关键词低价钛化合物;还原偶联;亚胺;原甲酸三乙酯;