REMARKABLE METAL TEMPLATE EFFECTS ON SELECTIVE SYNTHESES OF PARA-TERT-BUTYLCALIX[4]ARENE CONFORMERS

被引:67
作者
IWAMOTO, K [1 ]
FUJIMOTO, K [1 ]
MATSUDA, T [1 ]
SHINKAI, S [1 ]
机构
[1] KYUSHU UNIV,FAC ENGN,DEPT ORGAN SYNTH,FUKUOKA 812,JAPAN
关键词
D O I
10.1016/S0040-4039(00)97270-8
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
It was found that the conformer distribution in tetra-O-substitution of p-t-butylcalix[4]arene is remarkably affected by metal species in base: in particular, 100% "cone" selectivity in the presence of Na2CO3 is changed to 100% "partial cone" selectivity in the presence of Cs2CO3 in the reaction With ethyl bromoacetate. © 1990.
引用
收藏
页码:7169 / 7172
页数:4
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