7-羟基-8-烯丙基香豆素,8-allyl-7-hydroxycoumarin英语短句,例句大全

7-羟基-8-烯丙基香豆素,8-allyl-7-hydroxycoumarin
1)8-allyl-7-hydroxycoumarin7-羟基-8-烯丙基香豆素
1.The formation of three derivatives of 8-allyl-7-hydroxycoumarin with the structure of diaryl ethers,which were 8-allyl-7-(2,6-dinitro-4-trifluoromethylphenoxy)coumarin, 8-allyl-7-(2-nitro-4-trifluoromethylphenoxy)coumarin,8-allyl-7-(4-trifluoromethylphenoxy)co umarin,were studied.本论文选取了3,5-二硝基-4-氯三氟甲苯、3-硝基-4-氯三氟甲苯、对溴三氟甲苯三个芳卤化合物对7-羟基-8-烯丙基香豆素进行了二芳基醚结构修饰,通过考察反应物投料比、温度、时间、碱的用量、碱的种类、催化剂的用量、催化剂的种类、溶剂的种类等各种因素对反应的影响,对合成工艺进行了条件优化,得到了反应的较佳条件,三种目标产物的收率分别为7-(2,6-二硝基-4-三氟甲基苯氧基)-8-烯丙基香豆素82%(HPLC)、7-(2-硝基-4-三氟甲基苯氧基)-8-烯丙基香豆素89。
2)7-hydroxy-8-methoxycoumarin7-羟基-8-甲氧基香豆素
3)7-hydroxy-8-isopentenylcoumarin7-羟基-8-异戊烯基香豆素
4)8-Acetyl-7-hydroxycoumarin8-乙酰-7-羟基香豆素
5)8-Acetyl-7-hydroxy-4-methylcoumarin8-乙酰基-7-羟基-4-甲基香豆素
6)7-hydroxycoumarin7-羟基香豆素
1.Ten novel 7-alkoxylcoumarins were synthesized by Williamson reaction of 7-hydroxycoumarin(1) or 7-hydroxy-4-methylcoumarin(2) and five alkyl halides using tetrabutylammonium bromide(TBAB) as a phase transfer catalyst.以四正丁基溴化铵(TBAB)作相转移催化剂,7-羟基香豆素(1)或7-羟基-4-甲基香豆素(2)与5种卤代烃经Williamson反应合成了10个新的7-烷氧基香豆素,其结构经1H NMR,IR和MS表征。
2.The coumarin derivatives were synthysized from 7-hydroxycoumarin by the Williamson etherification reaction and fluorination.课题以7-羟基香豆素为原料，以对甲苯磺酸三氟乙酯(TsOCH_2CF_3)为烷基化试剂，合成7-(2,2,2-三氟乙氧基)香豆素和8-烯丙基-7-(2,2,2-三氟乙氧基)香豆素。

英文短句/例句

1.Synthesis of 4-ethoxy-7-hydroxycoumarin and its derivatives4-乙氧基-7-羟基香豆素及其衍生物的合成
2.The Synthesis of 7-Hydroxy-4-Methyl Coumarin by Using Microwave Catalysis;微波催化合成7-羟基-4-甲基香豆素
3.Synthesis of 7-Hydroxy-4-methylcoumarin Using Phenyl Sulfonic Acid as Catalyst苯磺酸催化合成7-羟基-4-甲基香豆素
4.Synthesis of 7-hydroxy-4-methyl Coumarin Catalyzed by Amberlyst 15 without SolventAmberlyst15催化7-羟基-4-甲基香豆素的无溶剂合成
5.Synthesis of 8(or 6)-Chloro-7-hydroxy-4-methylcoumarins and Their Derivatives8(或6)-氯-7-羟基-4-甲基香豆素及其衍生物的合成
6.Synthesis of 6, 7-dihydroxycoumarin;6，7-二羟基香豆素的合成与研究
7.Direct Sulfanylation of 4-Hydroxycoumarins with Thiols in Water for Synthesis of 4-sulfanylcoumarins水相中4-羟基香豆素直接硫醚化合成4-硫醚基香豆素衍生物
8.Improvement of the Catalyst in Reaction on the Synthesis of 7-Diethylamino-4-methylcoumarin7-二乙氨基-4-甲基香豆素合成中催化剂的改良
9.Determination of the Output of Hydroxyl Free Radical by Fluorescence Quenching Method with Hymecromone-Mn~(2+)-H_2O_2 System and Hydroxyl Free Radical-scavenging Activity of Aqueous Extracts of Common Foodstuffs羟甲香豆素荧光猝灭法测定羟自由基产生量及常见食品水提物羟自由基清除率测定的研究
10.Synthesis of 3,3-Arylidene Bis(4-hydroxycoumarin) Catalyzed by Sulfamic Acid in Aqueous Media under Microwave Irradiation微波辐射下氨磺酸催化水相合成3,3-亚芳基双(4-羟基香豆素)
11.Study on Microwave-Induced Synthesis、Spectra and Electrochemical of 4-Hydroxycoumarin and Its Derivatives;4-羟基香豆素及其衍生物的微波合成、光谱及电化学性质研究
12.Microwave-induced Synthesis and Spectral Properties of New 4-Hydroxycoumarin Derivatives新型4-羟基香豆素衍生物的微波合成及其光谱性质
13.Photoluminescent and electroluminescent properties of 7-(diethylamino)-coumarin-3-carboxylic acid7-N,N-二乙胺基-香豆素-3-羧酸光致和电致发光特性研究
14.Dissolution determination for hymecromone preparation羟甲香豆素制剂溶出度测定方法的研究
15.Study on the Cloning and Expression of a p-Coumarate 3-hydroxylase Gene in Phyllostachys edulis毛竹香豆酸-3-羟基化酶基因的克隆与表达研究
16.7- chloro -4-hyddroxyquinoline-3-carboxylic aicd7-氯-4-羟基喹啉-3-羟酸
17.They added a small amount of the fluorescent dye coumarin to the emitter material tris (8-hydroxy-quinoline) aluminum.他们在发光材料三（8?羟基口喹啉）化铝里，加入了少量的萤光染料香豆素。
18.Theoretical studies of the electronic structures and spectrum properties of 7-methoxycoumarin-3-formatediethanolamine7-甲氧基香豆素-3-甲酰二乙醇胺的电子结构和光谱性质的理论研究