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Hexaquinacene

FIGURE 8. Structures of triquinacene (1) and hexaquinacene (2) (distances in A, angles in degrees)... [Pg.50]

The exhaustive hydroboration of Cig-hexaquinacene (810) has been investigated and the isomeric exo -triols 816 and 817 isolated Also, diketone 809 has been functionalized as in 818a and 818b, but these epoxides resisted intramolecular cyclization . ... [Pg.88]

Several systems have been examined in the context of potential tris- and higher homoaromatic systems21. These include cis. cis, cis-1,4,7-cyclonon atriene (128), triquinacene (129), hexaquinacene and the cyclic polyacetylenes such as 130. The conformations of some of these systems are such that they could be considered to be examples of in plane homoaromatic systems266. [Pg.456]

See other pages where Hexaquinacene is mentioned: [Pg.50]    [Pg.310]    [Pg.86]    [Pg.86]    [Pg.563]    [Pg.42]    [Pg.42]    [Pg.42]    [Pg.140]    [Pg.141]    [Pg.141]    [Pg.142]    [Pg.768]    [Pg.50]    [Pg.327]    [Pg.768]    [Pg.125]   


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Hexaquinacene via Nazarov cyclization

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