Calix[4]arenes with CMPO functions at the narrow-rim.: Synthesis and extraction properties

被引:106
作者
Barboso, S
Carrera, AG
Matthews, SE
Arnaud-Neu, F
Böhmer, V
Dozol, JF
Rouquette, H
Schwing-Weill, MJ
机构
[1] Univ Mainz, Abt Lehramt Chem, Fachbereich Chem & Pharm, D-55099 Mainz, Germany
[2] ECPM, Chim Phys Lab, UMR 7512 CNRS, F-67087 Strasbourg 2, France
[3] CEN Cadarache, DCC, DESD, SEP,LPTE, F-13108 St Paul Durance, France
来源
JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 2 | 1999年 / 04期
关键词
D O I
10.1039/a900210c
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
The synthesis of three new derivatives of tert-butylcalix[4]arene bearing four carbamoylmethylphosphine oxide (CMPO) groups as ligating functions on the narrow rim is described. These are easily;prepared in 65-80% yield via acylation of the corresponding fixed cone aminoalkoxy (C-2 to C-4) derivatives with p-nitrophenyl (diphenylphosphoryl)acetate. Extraction studies of selected lanthanides (La3+,. Eu3+, Yb3+) and thorium (Th4+) from 1 M HNO3 to CH2Cl2 show a strong increase of the percentage extracted (%E) with increasing length of the spacer. Extraction of Am3+, La3+, Nd3+, Sm3+ and Eu3+ from (0.1-4) M HNO3 int o-nitrophenyl hexyl ether shows, in contrast to the wide rim CMPO derivative, no decrease of the distribution coefficient for higher concentrations of nitric acid.
引用
收藏
页码:719 / 723
页数:5
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