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Keywords lactonic crown ether;synthesis; 内酯型冠醚;冠醚化合物;合成;
In this paper ten lactonic crown ethers weresynthesized, of which seven were new compounds.Theirstructures were confirmed by EA,IR,1HNMR andMS analysis. 合成了10个内酯型冠醚化合物，其中7个冠醚是新化合物，其结构均由元素分析，及红外、核磁、质谱分析证实。
Keywords crown ether;thiosemicarbazide;synthesis; 冠醚;合成;氨基硫脲;
Keywords crown ether;porphine ring;synthesis; 冠醚;卟吩环;合成;
Keywords crown ether;synthsis;semicarbazide; 冠醚;合成;氨基脲;
Under acid condition open chaining crown ether diaromatic aldehyde can react, and they will synthesize a compound of chaining crown ether diaromatic aldehyde thiosemi-carbazone kind. 摘要链状冠醚二芳醛在酸性条件下与氨基硫脲反应，合成了链状冠醚二芳醛缩氨硫脲类化合物。
Two new exocyclic ring-fused boron-dipyrromethene (BDP) dyes with benzo crown ether subunit at meso-position were prepared.Their spectroscopic and electrochemical properties were investigated. 本文报道了两种中位为苯并冠醚亚单元取代的含稠合外环的硼-二吡咯亚甲基染料的合成、光谱和电化学性质。
It is reported that cadmium in the form of CdI 2- 4 can be preconcentrated by its complex reaction with a crown ether called polybenzo 15 crown 5 (A type), which is coated on a molecular sieve and filled into a glass column. 报道了用装有涂布了聚苯并 15 冠 5 (A型 )的分子筛的玻璃分离柱可用于水中痕量镉的预富集。此分离方法是基于CdI2 - 4络阴离子与冠醚的络合反应。
Synthesis and characterization of Schiff base type liquid crystalline crown ether ligandsA new kind of schiff base type liquid crystalline crown ether ligand was synthesized on the base of molecul. 二、席夫碱型液晶冠醚配体的合成与表征从分子设计出发，设计并合成了一类新的席夫碱型液晶冠醚化合物。
Keywords noncyclic crown ether;methimazole;mass spectra; 非环冠醚;咪唑;质谱;
Keywords synthesis;calix[4]arene;anthraquinone;crown ether; 关键词合成;杯[4]芳烃;蒽醌;冠醚;
Keywords open-chain crown ether;parathesin;synthesis; 对氨基苯甲酸乙酯;酰胺型开链冠醚;合成;
Keywords ferrocene;N?methly formylaniline;crown ether; 冠醚;二茂铁;氮甲基甲酰苯胺;
Keywords scandium picrate;crown ether;extraction;crystal structure; 苦味酸钪;冠醚;萃取;晶体结构;
Keywords Organic synthesis;Condensation;Glycidic Ester;Crown Ether; 有机合成;缩合;缩水甘油酸酯;冠醚;
Keywords biscrown ether crown ether complex alkali metal picrate; 双冠醚;冠醚配合物;苦味酸盐;
A review with 21 references on development and applications of calix crown ethers are described. 摘要综述了杯芳冠醚的产生、发展及应用研究的新进展，展望了它的工业应用前景。
Keywords Crown ether;synthesis;acylation;semicarbazone.; 冠醚;合成;酰化;缩氨脲;
Keywords Synthesis;Thiourea;Acyclic crown ether;Complexing; 合成;硫脲;开链冠醚;络合剂;