List of Articles 5-a]acridine Open Access Article Abstract Page Full-Text 1 - 1,8-Diazabicyclo[5.4.0]undec-7-ene (DBU) as a highly efficient catalyst for the production of fluorescent 3H-imidazo[4,5-a]acridine-11-carbonitriles Mehrdad Mazrouei Mehdi Pordel Abolghasem Davoodnia S. Ali Beyramabadi