Synthesis of p-tert-butylthiacalix[n]arenes (n=4, 6, and 8) from a sulfur-bridged acyclic dimer of p-tert-butylphenol

被引:42
作者
Kon, N [1 ]
Iki, N [1 ]
Miyano, S [1 ]
机构
[1] Tohoku Univ, Grad Sch Engn, Dept Biomol Engn, Aoba Ku, Sendai, Miyagi 9808579, Japan
关键词
calixarenes; thiacalixarenes; sulfide;
D O I
10.1016/S0040-4039(02)00214-9
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
The one-step method for the synthesis of p-tert-butylthiacalix[n]arenes TCnAs (n=4 and 6) by reacting p-tert-butylphenol I with elemental sulfur in the presence of a base was advantageously replaced by a two-step procedure in which a sulfur-bridged linear dimer of I was prepared first to use as the starting material for the cyclo-condensation with sulfur to greatly improve the yields of TC4A (83%.) and TC6A (5.3%). The present dimer method allowed the isolation of TC8A in an appreciable amount (4.3%) for the first time. (C) 2002 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:2231 / 2234
页数:4
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