p-(benzyloxy)calix[8]arene: One-pot synthesis and functionalization

被引：27

作者：

Casnati, A ^{[1
]}

Ferdani, R ^{[1
]}

Pochini, A ^{[1
]}

Ungaro, R ^{[1
]}

机构：

[1] UNIV PARMA,DIPARTIMENTO CHIM ORGAN & IND,I-43100 PARMA,ITALY

来源：

JOURNAL OF ORGANIC CHEMISTRY | 1997年 / 62卷 / 18期

关键词：

D O I：

10.1021/jo970620r

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

The condensation of hydroquinone monobenzyl ether in the presence of several bases gives a mixture of cyclic oligomers. Using p-benzyloxyphenol, paraformaldehyde, and NaOH in 45:82:1 molar ratio in refluxing xylene, p-(benzyloxy)calix[8]arene (2) was selectively produced in 48% isolated yield. Compound 2 was also functionalized at the lower rim with acetoxy, methyl, pentyl, [(ethyloxy)carbonyl]methyl, and [(N,N-diethylamino)carbonyl]methyl groups. Replacement of the benzyl groups on these compounds allowed for the first time the high-yield syntheses of calix[8]hydroquinone and its derivatives.

引用

页码：6236 / 6239

页数：4

共 40 条

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