公开(公告)号：US6040462A

公开(公告)日：2000-03-21

申请号：US197920

申请日：1998-11-23

申请人： Won Zin Oh ,  Kune Woo Lee ,  Wang Kyu Choi ,  Hyun Soo Park ,  Jong Seung Kim ,  Moon Hwan Cho ,  Jong Kook Kim

发明人： Won Zin Oh ,  Kune Woo Lee ,  Wang Kyu Choi ,  Hyun Soo Park ,  Jong Seung Kim ,  Moon Hwan Cho ,  Jong Kook Kim

IPC分类号： C07C43/23 ,  C07C309/66 ,  C07D323/00 ,  C07C43/205

CPC分类号： C07C309/66 ,  C07C43/23 ,  C07D323/00

摘要： Novel calix[4]arene dibenzo crown ethers useful to selectively extract cesium are represented by the formula: wherein R is a C.sub.1 -C.sub.10 normal alkyl, a phenyl or a methoxyphenyl, R' is hydrogen, p-tert-butyl or a C.sub.1 -C.sub.10 normal alkyl, R" is a C.sub.1 -C.sub.10 normal alkyl, and n is an integer of 0-2. The novel compound is prepared at high yields by introduction of benzene rings into the crown ether ring of calix[4]arene crown-6-ether. The calix[4]arene dibenzo crown ethers are superior in selective absorptivity for cesium ions by virtue of their 1,3-alternate conformational structure and thus, can be used as selective extractants able to separate cesium ions at a high efficiency.

摘要翻译： 可用于选择性提取铯的新型杯[4]芳烃二苯并冠醚由下式表示：其中R是C1-C10正烷基，苯基或甲氧基苯基，R'是氢，对叔丁基或C1- C10正烷基，R“为C1-C10正烷基，n为0-2的整数。 通过将苯环引入杯[4]芳烃冠醚-6-醚的冠醚环中，可以高产率制备新化合物。 杯[4]芳族二苯并冠醚由于其1,3-交替的构象结构而优于铯离子的选择性吸收性，因此可用作能够以高效率分离铯离子的选择性萃取剂。