1. Five Schiff bases were prepared from piperonal and diamines by condensation reaction.
   合成新的双-胡椒醛缩二胺类席夫碱化合物。
2. Cu furaldehyde-ethylene diamine Schiff base complex was synthesized with the yield of 63.
   合成了一种席夫碱金属络合物——呋喃甲醛乙二胺铜络合物,收率为63。
3. Two series of thermotropic liquid crystalline polyureas were synthesized by the copolymerization of benzidine (or o-tolidine),1,6-hexane diamine and 2,4-toluene diisocyanate.
   为合成新型热致液晶聚脲，以含液晶基元的联苯二胺（或联邻甲苯胺）、1，6-己二胺、2，4-甲苯二异氰酸酯为原料进行合成。
4. According to the ethylene diamine moiety in the structure of some calcium antagonists,we designed and synthesized 5 unreported phenoxybenzamine derivatives.
   利用酚苄明结构中氯乙胺基的活性，结合一些钙拮抗剂含乙二胺结构的特征，设计合成了5个酚苄明衍生物。
5. When the complex of anhydrous zinc acetate with 1,5-naphthalene diamine was formed, the anhydrous zinc acetate changed from a bidentate ligand to a unidentate ligand.
   在无水乙酸锌与1,5-萘二胺形成配位络合物的过程中，无水乙酸锌的结构从双齿型转变成单齿型。
6. 3, A chelating agent which forms an easily water-soluble metal chelated compound such as nitrilotriacetate (NTA) or ethylene diamine tetraacetate (EDTA) is incorporated in a detergent composition.
   在洗衣粉中掺入螯合剂，例如次氮基三乙酸酯（NTA）或者是乙二胺四乙酸酯（EDTA），这些螯合剂易于形成水溶性的金属螯合物。

声明：以上例句、词性分类均由互联网资源自动生成，未经过人工审核，其表达内容亦不代表本软件的观点；若发现问题，欢迎向我们指正。