Halogenation of 1,6-diazaphenalene. Theoretical and experimental results
作者:Robert W. Weber、Shieu-Jeing Lee、Samuel Milosevich、Walter B. England、James M. Cook
DOI:10.1139/v82-436
日期:1982.12.15
Bromination of 1,6-diazaphenalene 1 yields a mixture of mono-, di-, and tri-bromo derivatives, while bromination of the conjugate acid 2 provides the 7-bromo isomer 7 in 81% yield. Charge densities and localization energies have been calculated, and are found to be in agreement with the orientation pattern observed during electrophilic substitution. These observations have been employed to develop