RING CONTRACTION IN SCHIFF-BASE MACROCYCLES - THE X-RAY CRYSTAL-STRUCTURE OF AN IMIDAZOLIDINE-CONTAINING MACROCYCLE

被引:15
作者
ADAMS, H [1 ]
BAILEY, NA [1 ]
FENTON, DE [1 ]
HEMPSTEAD, PD [1 ]
WESTWOOD, GP [1 ]
机构
[1] UNIV SHEFFIELD,DEPT CHEM,SHEFFIELD S3 7HF,S YORKSHIRE,ENGLAND
来源
JOURNAL OF INCLUSION PHENOMENA AND MOLECULAR RECOGNITION IN CHEMISTRY | 1991年 / 11卷 / 01期
关键词
MACROCYCLE; SCHIFF BASE; IMIDAZOLIDINE RING CONTRACTION;
D O I
10.1007/BF01073685
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Cyclocondensation of benzene-1,3-dicarbaldehyde and 3-azapentane-1,5-diamine in acetonitrile leads to isolation of an 18-membered imidazolidine-containing Schiff base macrocycle rather than the anticipated 24-membered tetraimine Schiff base macrocycle. This has occurred as a consequence of internal nucleophilic addition of the secondary amine functions across adjacent azomethine bonds. The X-ray crystal structure of the imidazolidine-containing Schiff base macrocycle is reported.
引用
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页码:63 / 69
页数:7
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