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- The title compound was synthesized from 2,4 difluoroaniline by five reactions such as arylation,Friedel Crafts acylation, Baeyer Villiger reaction,saponification and carbonation. 研究了以2，4?二氟苯胺为原料，经芳烃偶联反应、傅－ 克酰化反应、拜耳－ 维利格反应、水解反应、羧化反应来合成氟苯水杨酸这一工艺路线。
- Three phenylalkyl substituted hydroquinones were synthesized from 1,4 dimethoxybenzene by Friedel Crafts acylation, Huang Minlon modification reduction and cleavage of ether bond. 以1,4-二甲氧基苯为原料,经傅氏酰基化反应、黄鸣龙改良还原、醚键的断裂三步反应合成了3个苯烷基对苯二酚。
- Methods and results:Through acylation,Friedel Crafts reaction,reduction,hydrolysis,condensation and oxidation,the title compound was prepared with a total yield of 50.7%. 方法:以庚二酸单乙酯为原料;经酰氯化、傅克酰化、还原、水解、缩合及氧化反应合成塞曲司特。结果:塞曲司特的总产率为50.;7%25。
- Diflunisal was prepared from 2,4 difluoroaniline via biphenylation,Friedel Crafts acylation,Baeyer Villiger rearrangement,hydrolysis and carboxylation. The overall yield was 38.4%. 以 2 ;4-二氟苯胺为起始原料 ;经联苯化作用、Friedel-Crafts酰化反应、Baeyer-Villiger重排、水解和羧基化作用 5步反应制得 2′;4′-二氟 -4-羟基 -(1 ;1′-联苯 ) -3 -羧酸 ;总收率可达 3 8.;4%25
- The antiarrhythmic drug ibutilide fumarate was synthesized from aniline by methylsulfonylation, Friedel Crafts reaction, condensation, reduction and salification with an overall yield of 44%. 以苯胺为起始原料,经甲磺酰化、傅克反应、缩合、还原和成盐反应等5步合成了抗心律失常药富马酸伊布利特,总收率44%25(以甲磺酰苯胺计)。
- Keywords acetylpyrrole;Friedel Crafts reaction;basic hydrolysis; 乙酰基吡咯;傅-克酰化反应;碱式水解;
- Keywords poly（aryl ether ketone ketone）;3 methyldiphenyl ether;Friedel Crafts actlation; 聚醚酮酮;3-甲基二苯醚;傅-克酰化反应;
- He graduated from a school of crafts and arts. 他毕业于一所工艺美术学校。
- A polymer of two or more different monomers. 共聚物一种由两种或多种不同单体构成的聚合物
- The influence of polymer monomer, emulsifier, crosslinking agent, amount of initiator, polymerization craft on the adhesive properties and stability of manufacture are discussed. 摘要研究了聚合单体、乳化剂、交联剂、引发剂、聚合工艺对产品性能及生产稳定性的影响。
- A man who practices a craft with great skill. 手艺人熟练使用某种手艺的人
- The damaged craft was hauled to the hangar. 损坏了的飞机被拖进了飞机库。
- He learned his craft from an old master. 他从一位老匠人那儿学得他的手艺。
- Using preemulsion and post polymerization a polymer emulsion was synthesized. 采用先乳化、后聚合工艺成功合成一种聚合物乳液。
- An outstanding work of art or craft. 一个引人注目的艺术品或工艺品
- A molecule that can combine with others to form a polymer. 单体可以与其他分子结合形成聚合物的分子
- friedel crafts reaction 弗里德尔 克拉夫特反应
- Hundreds of small craft accompany the liner into harbour. 数百只小艇随同这艘班轮驶入港湾。
- By crafts the gambler tricked them out of all their money. 那个赌徒用诡计赢去了他们所有的钱。
- Inferior craft; felt inferior to his older sibling. 低等的手工艺品; 感到比他的兄妹们低一等
