Synthesis of expanded planar dehydrobenzoannulenes: Weakly diatropic, weakly paratropic, or atropic?

被引:32
作者
Wan, WB [1 ]
Kimball, DB [1 ]
Haley, MM [1 ]
机构
[1] Univ Oregon, Dept Chem, Eugene, OR 97403 USA
关键词
annulene; aromaticity; alkynes;
D O I
10.1016/S0040-4039(98)01583-4
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
Use of a Cu/Pd cross-coupling strategy has led to the synthesis of the first dehydrobenzoannulenes containing triacetylenic linkages. NMR studies of these macrocycles and comparison with other known systems indicate that, in spite of their large size and extensive benzannelation, dehydrobenzoannulenes possess weak induced ring currents. (C) 1998 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:6795 / 6798
页数:4
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