Self-union reactions and nuclear substitution by anions in some ring homologues of quinoxaline
作者:William Bradley、Frank W. Pexton
DOI:10.1039/jr9540004436
日期:——
A “Green” Route to Perylene Dyes: Direct Coupling Reactions of 1,8-Naphthalimide and Related Compounds under Mild Conditions Using a “New” Base Complex Reagent, <i>t</i>-BuOK/DBN
作者:Takaaki Sakamoto、Chyongjin Pac
DOI:10.1021/jo0010835
日期:2001.1.1
The direct coupling reactions of 1,8-naphthalimide compounds efficiently occurred at 130 or 170 degrees C without the intervention of the leuco form dyes in the presence of base complex reagent, t-BuOK/1,5-diazabicyclo[4.3.0]non-5-ene (DBN), to give the corresponding perylene dyes in good yields with > 95% purities. A possible mechanistic speculation for these oxidative coupling reactions is briefly