ChemInform Abstract: Z-Tribenzo[c,g,k]-1,2,5,6-tetradehydro[12]annulene, a Concave π-Electron System.
Abstract
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ChemInform Abstract
The synthesis of the compound (VI) and Bergman reaction of its acetylenic bonds are reported. The reaction of (VI) with AuCl does not lead to complex formation. Instead the cyclization product (IX)—(XI) are formed.