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Benzo pentalene

While 2-ami no-2//-triazolopyridines (74) have not been reported, the close structural features found in the pyridino[4,5]benzo-l,3a,6,6a-tetraazapentalenes (see Section 7.10.5.1) provide an excellent framework to study the differential electronic effects between the benzene system and the pyridine system. In general, all the isomeric pentalenes show greater ease for electrophilic addition... [Pg.371]

Pentafulvalenes, 394 Pentaheptafulvalenes, 400 Pentalenes, 377 Pentalenes, benzo, 382 Pentalenide salts, 382 Pentatridecafulvalenes, dehydro, 403 Pentaundecafulvalenes, bridged, 402... [Pg.224]

The only pentalenes to have been isolated as stable compounds are eitlier substituted by large groups which sterically protect the molecule, substituted by push-pull substituents, or benzo-annelatcd. [Pg.420]

See other pages where Benzo pentalene is mentioned: [Pg.97]    [Pg.400]    [Pg.18]    [Pg.367]    [Pg.478]    [Pg.625]    [Pg.717]    [Pg.759]    [Pg.759]    [Pg.864]    [Pg.1041]    [Pg.1123]    [Pg.1172]    [Pg.513]    [Pg.1646]    [Pg.43]    [Pg.13]   


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Pentalene

Pentalenes—

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