E. Koyama, Gang Yang, K. Hiratani
Oct 14, 2000
Citations
0
Influential Citations
20
Citations
Journal
Tetrahedron Letters
Abstract
Abstract The one-pot thermal reaction of 1,3-bis( o -acylamino phenyloxy)-2-methylene propane derivatives gave either the bis(benzoxazole) derivatives or the benzodihydrofuran derivatives via tandem Claisen rearrangement in good yields. The reaction courses strongly depend upon the reaction conditions such as the solvent or the substituent of the carbamoyl moiety. The resulting bis(benzoxazole) derivative having a 2-aromatic substituent emits blue fluorescence and has almost the same fluorescence quantum yield as the model mono(benzoxazole) compound.