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- Aromatic compounds are easy to take place nucleophilic addition and nucleophilic substitution. 带有吸电子基团的芳环容易与亲核试剂发生亲核加成或亲核取代反应。
- To study the nucleophilic addition of N-methylhydroxylamine and O-methylhydroxylamine to unsaturated nitro compounds. 研究N-甲基羟胺与O-甲基羟胺对不饱和硝基化合物的加成反应。
- This paper reviews the reaction of 2-aza-1,3-butadienes,such as Diels Alder reaction,polymerization reaction,hydrolysis reaction,nucleophilic addition reaction. 综述了 2 -氮杂 - 1,3-丁二烯类化合物的主要反应 ,如 :Diels Alder反应 ,聚合反应、水解反应、亲核加成反应等
- The synthsized six kinds of quat ernary ammo nium salts show good phase transfer catalysis and certain effcet of asymmetric i nduction in nucleophilic addition of benzaldehyde with chloroform. 6种手性季铵盐对苯甲醛与氯仿的亲核加成反应;显示出良好的相转移催化作用和一定的不对称诱导效应.
- The compound 8 was synthesized by 4-nitrophenyl-hydrazine and 2- oxo-propionic acid ethyl ester by nucleophilic addition, rearrangement by total yield 67.9%, and the cost was decreased. 以对硝基苯肼、丙酮酸乙酯为原料，经亲核加成、环化（2步总收率67.;9%25）合成了化合物8，降低了生产成本。
- Methods:Starting from 5-cyanophthalide, escitalopram oxalate was prepared via several steps including nucleophilic addition, hydrolysis, chemical separation, cyclization and salt formation. 方法:以5-氰基苯酞为起始原料,经亲核加成、水解、化学拆分、环化和成盐等反应制得抗抑郁药草酸依地普仑。
- By nucleophilic addition and reductive cyclization reaction of the three intermediates, respectively, some azo-heterocyclic derivatives containing a rosinyl skeleton were obtained. 该3个中间体分别经过亲核取代、还原关环反应后，得到了一些脱氢松香酸甲酯含氮杂环衍生物；
- The bactericides of aldehydes and quaternary ammonium salts killed bacteria through nucleophilic additional reaction,infiltration and diffusion resp. 醛类、季铵盐类杀菌剂分别通过亲核加成反应、渗透和扩散杀灭细菌；
- Nucleophilic Addition of Active Unsaturated Type 试论活泼不饱和体系的加成反应
- Keywords thiadiazole;nucleophilic addition;fungicidal activity; 噻二唑;亲核加成;抗菌活性;
- mechanism of nucleophilic addition to carbonyl group [化] 羰基亲核加成反应机理
- mechanism of nucleophilic addition to ethylenic bond [化] 烯键亲核加成反应机理
- She has two cars and in addition a motorboat. 她有两辆轿车外加一艘汽艇。
- The little girl is not very clever at addition. 这个小女孩不太善于做加法。
- Ann will be a very useful addition to our team. 安来到我们队给我们增加了一员干将。
- In addition, we supply small parts for replacement. 此外，我们还提供备用小零件。
- The Effect about the Structure of Aldehyde and Ketone in the Carbonyi Nucleophilic Addition Activity 在羰基亲核加成反应活性中醛、酮的结构所起的作用
- Addition and division are forms of computation. 加法和除法都是计算方法。
- PREPARATION OF REM RESIN AND APPLICATION ON NUCLEOPHILIC ADDITIONAL REACTION REM树脂的制备及亲核加成应用研究
- Keywords dithiocarbamate, cyanoethylation, collector, carbon disul-fide, N-alkylation, nucleophilic addition; 二硫代氨基甲酸盐（酯）;氰乙基化反应;亲核加成反应;捕收剂;二硫化碳;N烷基化;
