In order to optimize synthesis process of 2,6-difluorobenzoic acid (DFBA), 2,6-difluorobenzonitrile is fluorization synthesized from 2,6-dichlorobenzonitrile (DCBN) and potassium fluoride with N,N-dimethylformamide (DMF) as a solvent over the polyether catalyst A, and then the intermediate 2,6-difluorobenzonitrile is hydrolyzed under the alkali conditions to get DFBA.
为优化2,6-二氟苯甲酸(DFBA)的合成工艺,以2,6-二氯苯腈(DCBN)和氟化钾为原料,N,N-二甲基酰胺(DMF)为溶剂,在聚醚类催化剂A的催化下氟代合成中间体2,6-二氟苯腈,然后中间体在碱性条件下水解制得(DFBA)。
The paper made use of 3-methylpyridine as starting material through chloridization,fluorization and etc .
对以3-甲基吡啶为初始原料经过氯化、氟代等操作来合成2,3-二氯-5-三氟甲基吡啶进行了研究,确定了一条较优惠的合成工艺方案。
difluorobenzamide is synthesized from 2,6-dicholobenzomitrile and KF in presense of DMF,using compound catalysts,by fluorization and hydrolysis.
以2,6 -二氯苯甲腈和氟化钾为原料 ,N,N -二甲基甲酰胺为溶剂 ,在复合催化剂催化下氟代生成2,6-二氟苯甲腈 ,然后水解制得2,6 -二氟苯甲酰
Difiuoroaniline was synthesised from l,3 dichlorobenzene as a starting material via nitration,fluorination and reduction,The suitable technological conditions were probed for each step of the reactions.
以间二氯苯为原料，经硝化、氟代及还原反应合成２，４－二氟苯胺。
Phase transfer catalysis for the fluorodenitration of m-dinitrobenzene with spray-dried KF(SD-KF) in the presence of phthaloyl chloride(PDC) was reported.
对以间二硝基苯为反应底物,喷雾干燥的氟化钾(简写为SD-KF)为氟化剂,一步合成间硝基氟苯的氟代脱硝反应,考察了催化剂、反应时间、溶剂等因素对反应的影响。
Tetramethylammonium fluoride (TMAF) could be used as fluorodenitration reagent in synthesis of aromatic fluorine compounds from nitroaromatics.
四甲基氟化铵作为芳香族硝基化合物氟代脱硝试剂 ,用于合成含氟芳香族化合物 ,具有反应条件温和 ,产物收率高 ,副反应少的优
Tetramethylammonium fluoride(TMAF) could be used as fluorodenitration reagent in the synthesis of aromatic fluorine compounds from nitroaromatics.
四甲基氟化铵作为芳香族硝基化合物氟代脱硝试剂 ,用于合成含氟芳香族化合物 ,有反应条件温和 ,产物收率高 ,副反应少的优
Fluorobenzoic acids were prepared from fluorotoluenes through liquid phase air oxidation with acetic acid as solvent and Co~(2+)-Mn~(2+)-1, 1,2,2-tetrabromoethane as catalyst.
从氟代甲苯出发,以醋酸为溶剂,采用液相空气氧化法,在钴锰盐和1,1,2,2-四溴乙烷催化体系存在下,合成了氟代苯甲酸,采用升华方法进行精制。
Study on Synthesis of Fluorinated Indicator 5F-BAPTA-AM;
氟代指示剂5F-BAPTA-AM的合成研究
Fluorinated Acrylate/Acrylates (mini)Emulsion Copolymerization;
氟代丙烯酸酯/丙烯酸酯（细）乳液共聚合
Progress in Synthesis of Fluoropyridazines
氟代哒嗪化合物合成方法学研究进展
KINETICS AND PRODUCT VIBRATIONAL STATE DISTRIBUTIONS OF THE F SHIFT REARRANGEMENT REACTION OF FLUOROACETYLENE
氟代乙炔的氟迁移重排反应动态学和产物振动态分布
The Apoptosis of Lewis Lung Carcinoma Cell Induced by ~(18)F-2-Deoxy-2-Fluoro-D-Glucose
~（18）氟—氟代脱氧葡萄糖诱导Lewis肺癌细胞凋亡的实验研究
Preparation and characterization of fluoroalkylsilane self-assembled monolayers on magnetic head surfaces
磁头表面氟代硅烷自组装膜的制备和表征
[～(18)F]Fluorocholine Analogues: Synthesis and Application in Tumor Imaging;
[～（18）F]氟代胆碱类化合物的合成及肿瘤显像
bromotrifluoromethane [BTM] [halon 1301]
溴代三氟甲烷〔1301灭火剂〕
The detection of fluoroacetamide and metabolic product of fluoroacetate by GC/MS;
氟乙酰胺、氟乙酸中毒代谢产物“氟柠檬酸”的GC/MS分析研究
hydrochlorofluorocarbon - HCFC:A substitute for chlorofluorocarbons.
氢氯氟烃(简写为HCFC):一种氟氯烃的替代物。
Study of Functional Metabolism of Skeletal Fluorosis Patients after Water Improvement for 18 Years;
改水降氟18年后氟骨症患者功能代谢的研究
Comparing properties of heptafluoropropane substituted for bromotrifluoromethane extinguisher;
七氟丙烷替代三氟溴甲烷灭火剂性能比较
hydrofluorocarbon - HFC: A substitute for chlorofluorocarbons.
氢氯烃(简写为HFC):一种氟氯烃的替代物。
Study on Chemiluminescence from Reactions of F Atom with Bromine Substitute Methane
氟原子与溴代甲烷反应化学发光研究
Study and Application of Polarographic Wave on Fluoride, Thiosulphate, Tellurium;
氟、硫代硫酸根、碲的极谱波研究及应用
Synthesis of N-subtituted-4-trifluoromethylpyrimidinyl-2-amines
N-取代-4-三氟甲基嘧啶-2-胺的合成
These reagents are fluid, usually easily storable, transportable, they can replace hydrogen fluoride safely in some reactions.
在部分反应中可方便,安全地替代氟化氢作为氟化试剂。
The production of the perfluoroalky iodide is controlled by the foreign companies, which restrict the development of fluorine chemical engineering in our country.
国内无全氟碘代烷的生产,严重制约了有机氟精细化学品的发展。