Selective functionalization of methylene bridges of calix[6]arenes. Isolation and identification of stable conformers of methyl ether of p-tert-butylcalix[6]arene

被引:5
作者
Arora, Shafali [1 ]
Sharma, Shivali [1 ]
Mithu, Venus S. [1 ]
Hee-Lee, Chang [2 ]
Singh, Kamaljit [1 ]
机构
[1] Guru Nanak Dev Univ, UGC Ctr Adv Study 1, Dept Chem, Amritsar 143005, Punjab, India
[2] Kangwoon Natl Univ, Dept Chem, Chunchon 200701, South Korea
基金
新加坡国家研究基金会;
关键词
TRANS-ALKYL SUBSTITUENTS; CONFORMATIONAL-ANALYSIS; MOLECULAR RECOGNITION; METAL-BINDING; CALIXARENES; DERIVATIVES; ROUTE;
D O I
10.1039/c4cc10400e
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Direct disubstitution at the methylene bridges of p-tert-butylcalix[6] arenemethyl ether has been achieved for the first time using a lithiation-substitution protocol. Two stable conformers have been isolated using column chromatography, and their structures have been unambiguously confirmed from 1D, 2D and variable temperature NMR studies and single crystal X-ray structure analysis.
引用
收藏
页码:4227 / 4230
页数:4
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