含三嗪环的双冠醚(Ⅲ)  

Bis-crown ether containing triazine ring (Ⅲ).Determination of extraction equilibrium constants

作　　者：陆国元[1] 朱春生[1] 王德枌[1] 胡宏纹[1] 

机构地区：[1]南京大学化学系

出　　处：《化学试剂》1990年第5期263-264,269,共3页Chemical Reagents

摘　　要：测定的七种三嗪环桥联的双冠醚氯仿溶液对苦味酸碱金属盐(钾、铷)水溶液的萃取平衡常数表明,在三嗪环上带有脂溶性较大的取代基的双冠醚具有较高的萃取能力。还报道了两个新双冠醚的合成。Extractions were carried out from aqueousalkali metal picrates(potassium,rubidium)solu-tion with seven bis-crown ethers containing tria-zine ring in chloroform and the extraction equi-librium constants were evaluated.The resultsindicate that the bis-crown ethers having lipophi-lic substituents in triazine ring exhibit higherextractability.Two new bis-crown ethers wereprepared

关 键 词：三嗪环 双冠醚 

分 类 号：O623.423[理学—有机化学]