您要查找的是不是:
- 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。
- 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 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。
- The company deals in medical intermediates like Triethyl Orthoformate, Trimethyl Orthoformate and Thiourea etc.Welcome to call! 我们公司主要经营各种医药中间体,原甲酸三乙酯、原甲酸三甲酯、硫脲等,欢迎广大新老客户来电咨询!!!
- 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。
- 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。
- 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。
- 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 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;
- Reactions of 2,2-Pentamethylene-1,3-dioxan-4,6-dione with Triethyl Orthoformate and Aromatic Amines 2,2-亚戊基-1,3-二氧六环-4,6-二酮与原甲酸三乙酯和芳香胺的反应
- Keywords heptaldehyde;triethyl orthoformate;enanthal diethyl acetal;preparation;catalysts; 庚醛;原甲酸三乙酯;庚醛二乙缩醛;制备;催化剂;
- Keywords triethyl orthoformate;dehydrating agent;glycerol;orthogonal experiment; 原甲酸三乙酯;脱水剂;丙三醇;正交实验;
- Keywords ethoxy methylene malonic diethyl ester;triethyl orthoformate;diethyl malonate;acetic anhydride; 乙氧基亚甲基丙二酸二乙酯;原甲酸三乙酯;丙二酸二乙酯;醋酸酐;
- Keywords 4-amino ethyl benzoate;triethyl orthoformate;N-methylaniline;ultraviolet absorbent; 氨基苯甲酸乙酯;原甲酸三乙酯;N-甲基苯胺;紫外线吸收剂;
- triethyl orthoformate 原甲酸三乙酯
- The recovery process for triethyl amine from crystallization mother liquor of glyphosate was presented in this paper. 本文介绍了从草甘膦结晶母液中回收三乙胺的工艺改进。
- Triethyl citrate was synthesized from citrate acid and ethanol using FeCl3 as catalyst and ethanol as dehydrating. 以三氯化铁为催化剂,乙醇为带水剂,用柠檬酸和乙醇为原料合成了柠檬酸三乙酯。
- 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。
- It was concluded that as a additive, triethyl phosphate (TEP) was prior to acetic acid for the hollow fiber membrane performance. 以磷酸三乙酯(TEP)和冰醋酸作为添加剂,分别观测其不同含量时膜性能变化规律,认为磷酸三乙酯作为添加剂有一定的优越性。