Tetraalkylated 2,8,14,20-tetrathiacalix [4] arenes:: Novel infinite channels in the solid state

被引：81

作者：

Lhoták, P

Himl, M

Pakhomova, S

Stibor, I

机构：

[1] Inst Chem Technol, Dept Organ Chem, Prague 6, Czech Republic

[2] Inst Chem Technol, Dept Solid State Chem, Prague 6, Czech Republic

来源：

TETRAHEDRON LETTERS | 1998年 / 39卷 / 48期

关键词：

calixarenes; alkylation; X-ray crystal structure;

D O I：

10.1016/S0040-4039(98)01950-9

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

The synthesis of new tetraalkylated derivatives of 2,8,14,20-tetrathiacalix[4]arenes was achieved by the refluxing of thiacalixarenes in acetone or acetonitrile with the alkylation agent (R-I, R-Br) in the presence of K2CO3 or Cs2CO3. The structure of the tetraalkylated thiacalix[4]arenes was studied hy means of H-1 NMR experiments proving the 1.3-alternate conformation under measurement conditions (CDCl3, room temperature). The same conformation was established by X-ray analysis in the solid state where these derivatives create nice infinite channels. (C) 1998 Elsevier Science Ltd. All rights reserved.

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页码：8915 / 8918

页数：4

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