Betaines, heterocyclic, derivatives alternant hydrocarbons

Benzo[/)]thiophene chemistry, recent advances in, 11, 177 29, 171 Benzo[c]thiophenes, 14, 331 1,2,3-Benzotriazines, 19, 215 Benzyne, reactions with heterocyclic compounds, 28, 183 Betaines, heterocyclic derivatives of alternant hydrocarbons,... [Pg.304]

Benzo[c]phenanthridine alkaloids are widespread in Papaveraceae, Fumariaceae, and Rutaceae. Fagaridine (118), the structure of which had to be revised, is a derivative of the unknown 5-methyl-benzo[c]phenan-thridine-8-olate (119) which is isoconjugate with the 2-methyl-chrysene anion (Scheme 43). Thus, Fagaridine is a member of class 1 of conjugated heterocyclic mesomeric betaines, which are isoconjugate with odd alternant hydrocarbon anions. [Pg.107]

VIL The Chemistry of Heterocyclic Betaines Derived from Even Alternant Hydrocarbon Dianions... [Pg.100]

Ramsden, C. A., Heterocyclic Betaine Derivatives of Alternant Hydrocarbons,... [Pg.298]

Heterocyclic betaine derivatives of alternant hydrocarbons, 26, 1 Heterocyclic acyl and formyl anion equivalents, 79, 89 Heterocyclic betaines pyridinium... [Pg.308]

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