1.Nefedipine was synthesized with m-Nitrobenzaldehyde,ethyl acetoacetate,ammonium acetate.

1.以间硝基苯甲醛,酸酯,氨化试剂为原料。

2.In this paper, (S)- ethyl mandelate was obtained through chiral resolution of racemic ethyl mandelate by lipase.

2.扁桃酸酯是合成扁桃酸系列药物的重要中间体。

3.Its catalytic performance in Heck reaction of iodobenzene with ethyl acrylate was studied.

3.研究了该催化剂对碘苯与丙烯酸酯反应的催化性能及循环使性能。

4.Tertiary amine, Chloroacetic acid and ethyl Chloroacetate could synergize MI and increase the ...

4.MI与给电性单体的组合效应不太明显。

5.The major aromas were hexylic acid ethyl ester, benzyl ethanol, octylic acid and octylic acid ethyl ester.

5.主体风味成分是己酸酯、苯醇、辛酸和辛酸酯。

6.Because of all these disvantages acetylchloride is used to react with absolute ethyl alcohol and synthesize ethyl acetate.

6.鉴于传统方法存在以上缺点,采替酸作为原料,不使任何催化剂,不加热,常温反应来合成酸酯。

7.And it is proved that the trifluoro ethyl methacrylate takes part in the copolymerization reaction.

7.讨论了氟单体量对转化率的影响。

8.Activated carbon as the sorbent and catalyst support was capsulated with ethyl cellulose by phase separation methods.

8.摘要对兼具吸附和催化剂载体功能的多孔结构活性炭，以基纤维素为材料相分离进行包覆。

9.Synthesis of ethyl iso nicotinate using BTEAC (benzyl triethyl ammonium chloride) as phase transfer catalyst was studied.

9.以BTEAC(苄基三基化铵)为相转移催化剂合成了异烟酸酯。

10.The effect that isopropyl xanthogen ethyl formate is synthesized with isopropyl xanthate under differ condition has been studied.

10.考察了不同条件对异丙基黄药合成异丙基黄原酸甲酸酯的影响。

11.The turbidity was induced mainly by inorganic salt in seriflux and the ethyl fatty acid in brut liquor.

11.低度白酒浑浊及货架期沉淀的原因主要是由加浆水中的无机盐和原酒中的高级脂肪酸酯引起的。

12.The phenylacetyl ethanolamine,a low toxic precurson of benzylpenicillin,was synthesized by using ethyl phenylacetate and colamine as raw materials.

12.以苯酸酯和醇胺为原料合成了苄青霉素低毒前体苯基醇胺。

13.A series of toxic products were produced after photocatalysis on ethanol, such as acetaldehyde, ethyl formate, ethyl acetate, diethoxymethane, 1,1-diethoxyethane.

13.如醇的反应产物包括醛，酸酯，酸甲酯，缩醛等一系列有害物质。

14.The synthesis of ethyl vanillin from urotropin is a major method with high yields,simple process, and available raw materials.

14.乌洛托品法是合成已基香兰素的一种重要方法，它操作简单，原料易得，产率较高。

15.Xanthoxylin was extracted from Zanthoxylum Bungeanum Maxim of Sichuan Hanyuan using absolute ethyl alcohol, ether, acetone and water as solvent.

15.采无水醇、醚、丙酮及水作溶剂,对四川汉源花椒作了精油提取研究。

16.Isobornyl ethyl ether was prepared by ethoxylation of camphene with absolute ethanol in the presence of DCP heat-resistant ion exchange resin.

16.工业莰烯在耐高温离子交换树脂DCP催化作下与无水醇反应生成了异龙脑基醚。

17.Heptanone with purity being 98.5% was synthesized by ethyl acetoacetate.The yield is 58.9%,and its application in the related fields were discussed.

17.酸酯法合成了2-庚酮,总得率为58.9%,纯度为98.5%.介绍了2-庚酮在相关领域中的应.

18.OBJECTIVE: To study the effects of different dispersing media, such as atolin and ethyl benzoate, on sustained-release properties of chitosan microspheres.

18.观察液体石蜡和苯甲酸酯作为分散介质对壳聚糖载药微球缓释性能的影响。

19.A synthetic method of benazolin ethyl was present with ochloroaniline, ammounium rhodanide, sulfuryl chloride, sodium nitrite and ethyl chloroacetate as the raw materials.

19.报道了以邻苯胺、硫氰酸铵、硫、亚硝酸钠和酸酯为主要原料合成草除灵酯的方法。

20.Isobornyl ethyl ether was prepared by the catalytic ethoxylation of camphene with ethyl alcohol in the presence of cation exchange resin fixed bed.

20.莰烯在阳离子交换树脂固定床催化下与醇反应生成异菠基醚。