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Biphenylene aromatic character

Despite the presence of cyclobutadienoid circuits, the chemical reactivity of 1 (Scheme 4.1, right) reflects considerable aromatic character biphenylene under-... [Pg.141]

Table 36. REPE and the Percentage Aromatic Character for a Selection of Biphenylene Derivatives (Shown in Figure 66)... Table 36. REPE and the Percentage Aromatic Character for a Selection of Biphenylene Derivatives (Shown in Figure 66)...
In polycyclic aromatic it-systems, one may detect radialene substructures when an appropriate resonance structure is considered. As long as the it-electrons in the aromatic ring(s) are fully delocalized, the question of the radialene character remains a hypothetical one. For example, benzannulated -methylene-cyclo( -I-2)alkenes, 1,2,3-trimethyleneindane (150) do not belong to the [5]radialenes. But how about biphenylene (151), for example Precise... [Pg.105]

See other pages where Biphenylene aromatic character is mentioned: [Pg.405]    [Pg.260]    [Pg.26]    [Pg.68]    [Pg.75]    [Pg.75]    [Pg.119]    [Pg.260]   
See also in sourсe #XX -- [ Pg.141 ]



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Aromatic character

Biphenylenes

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