Z-Tribenzo[c, g, k]-1, 2, 5, 6-tetradehydroannulene, a Concave π-Electron System
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Synthesis of <I>Z</I>-tribenzo[c,g,k]-1,2,5,6-tetradedydro-annulene <B>1</B> has been carried out in a good total yield. The Bergman reaction of the closely situated acetylene bonds in the endiyne structure of <B>1</B> and the reaction of <B>1</B> with AuCl produced the corresponding cyclization products.
- Chemistry Letters
Chemistry Letters 2000(8), 860-861, 2000-08-05
The Chemical Society of Japan