The Study to Synthesize α,β-Unsaturated Esters Containing a Trifluoromethyl Group by Suzuki Cross-coupling;
Suzuki型交叉偶联反应在合成含三氟甲基的α、β-不饱和酸酯中的应用研究
Results: Acquired three trifluoromethyl carboline derivatives that the third place having been substituted, the stucture of production is confinned by GC/MS,IR and 'HNMR.
结果:得到三个三位取代的含三氟甲基β-咔啉类化合物,产物结构经红外光谱、核磁共振光谱,质谱确证。
By the condensation of 3 trifluoromethyl 4 amino 5 mercapto 1,2,4 triazole with various aromatic acids or aldehydes in different reaction condition, eighteen new 1,2,4 triazole derivatives containing trifluoromethyl were obtained.
以 3 三氟甲基 4 氨基 5 巯基 1,2 ,4 三唑为原料 ,在不同反应条件下与取代苯甲酸或芳醛缩合 ,得到 15个含三氟甲基均三唑衍生物 ,利用元素分析 ,IR ,1HNMR和MS确定了这些化合物的组成与结
The reaction conditions of difluromethylation were improved.
对二氟甲基化反应条件进行了改进,在反应体系中加入金属钾以除去易引起副反应的水,使反应产率从30%提高到86%。
The synthetic method of liquid crystals with terminal difluoromethoxy group and backbone of phenylbicyclohexane is reported in detail.
报道了末端基团为二氟甲氧基、具有苯基双环己烷骨架的液晶化合物的合成方法。
Study on Fluorination and Trifluomethylation of [60] Fullerenes;
C_（60）的氟化和三氟甲基化研究
Synthesis of 2-Methoxy-4'-trifluoromethyl Acetophenone;
2-甲氧基-4'-三氟甲基苯乙酮的合成
Synthesis of 2-Methylsulfonyl-5-tirfluoromethyl-1,3,4-thiadiazole
2-甲砜基-5-三氟甲基-1,3,4-噻二唑的合成
Study of Trifluoromethylaion and Gem-Difluorocyclopropanation Reactions;
三氟甲基化及二氟环丙烷化反应的研究
Synthesis of 2,2',6,6'-Tetranitro-4,4'-di(trifluoromethyl)-biphenyl
2,2',6,6'-四硝基-4,4'-二(三氟甲基)联苯的合成
Synthesis of 1-[3-(Trifluoromethy1)pheny1]-2-propanone
1-[3-(三氟甲基)苯基]-2-丙酮合成的研究
The Developing Tendency of Synthesis of 2-chloro-5-trifluoromethyl-pyridine
2-氯-5-三氟甲基吡啶的合成进展
Synthesis of N-subtituted-4-trifluoromethylpyrimidinyl-2-amines
N-取代-4-三氟甲基嘧啶-2-胺的合成
RP-HPLC determination of 4-three fluorine methyl phenol
工业4-三氟甲基苯酚纯度的RP-HPLC分析
Improved synthesis of 2-trifluoromethyl-9-thioxanthone
2-三氟甲基噻吨-9-酮合成工艺的改进
Vapor-Liquid Equilibria of Perfluoromethyl Vinyl Ether and Chlorotrifluoroethylene System;
全氟甲基乙烯基醚+三氟氯乙烯体系汽液相平衡测定和关联
Synthesis of N-(4-Chloro-3-trifluoromethylphenyl)-N′-(4-bromophenyl) urea
N-(4-氯-3-三氟甲基苯基)-N′-(4-溴苯基)脲的合成
Measurement of fluorine releasing rate of fluoride containing PMMA in vitro
氟化聚甲基丙烯酸甲酯体外释氟率的测定
Catalytic Synthesis of 4-Trifluoromethoxy Phenyl Carbamate
4-三氟甲氧基苯基-氨基甲酸甲酯的催化合成
Synthesis of Ethyl 4-methyl-2-[4-(trifluoromethyl)phenyl]-1, 3-thiazole-5-carboxylate;
2-对三氟甲苯-4-甲基-5-噻唑甲酸乙酯的合成
monochlorodifluoromethane (freon 22)
二氟一氟甲烷（氟里昂22）
Synthesis of α-{[(5-Fluoro 2,4-dioxo-3,4-dihydropyrimidin-1-(2H)-yl)acetyl]amino}-2-methyl Pentanoic Acid
α-(5-氟尿嘧啶-1-基甲基甲酰基)氨基-2-甲基戊酸的合成
Synthesis of 2-(2,4-Difluoro)Phenyl-5-Alkyloxy Methyl Pyridine Derivatives
2-(2,4-二氟苯基)-5-烷氧甲基吡啶的合成