全部

1·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。

2·Michael reaction is a typical nucleophilic addition reaction, is always an organic chemistry domain research hot spot.

迈克尔反应是一个典型的亲核加成反应，一直是有机化学领域的一个研究热点。

3·METHODS: Electrophilic substitution, reduction, oxidation and nucleophilic addition reaction were used in the synthesis of title compounds.

方法：通过亲核取代、还原、氧化、亲核加成等反应得到目的化合物。

4·Trapping reactions in singlet oxygenation of 2-phenylindole (1) and nucleophilic addition reactions of 2-phenyl-3H-indol-3-one (4) both in methanolic media were studied comparatively.

本文比较了在甲醇介质下，2-苯基吲哚（1）单重态氧反应中的捕捉反应以及2-苯基-3H-吲哚-3-酮（4）的亲核加成反应特征。

5·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。