英语语法分析

Study on Synthesis, Structure and Reaction ofa New Compound 2, 3 - Methylene - 5, 8 - Dimethoxy Naphthalene.

新化合物2,3—亚甲基—5,8—二甲氧基萘的合成、结构及反应的研究。

With cyclohexyl methyl dimethoxy silane(CHMMS) as external donor, isotacticity of polymer turned to be more adjustable.

结果表明，使用环己基- 甲基-二甲氧基硅烷，聚合物的等规度可调性好；

An improved synthetic method of 3, 5-dimethoxy benzaldehyde which is the key intermediate for synthesizing resveratrol were studied.

报道了白藜芦醇关键中间体3,5二甲氧基苯甲醛的合成方法。