@inproceedings{paperid:1035439,
author = {Bazazan Noghani, Tahmineh and Rahimizadeh, Mohammad and Bakavoli, Mehdi and Pordel, Mehdi},
title = {An efficient synthesis of imidazo[4,5-a]acridine-11-yl cyanides as new fluorescent heterocylic compounds},
booktitle = {20th Iranian Seminar of Organic Chemistry},
year = {2013},
location = {همدان, IRAN},
keywords = {One of the most general mechanisms to transforming of δH-adducts into products of nucleophilic substitution of hydrogen is conversion of δH-adducts into nitroso compounds under proper conditions. This conversion occurs usually in protic solvents apparently via protonation of the negatively charged oxygen of nitro group of the δH-adducts and elimination of water [1;2]. These nitrosoarenes are mostly cyclized to heterocyclic systems under the reaction conditions [4;5].  
In this work; we introduced an useful method for the synthesis of 3-aryl-8-methoxy-3Himidazo[4;5-a]acridin-11-yl cyanides as new fluorescent compounds via the nucleophilic substitution of hydrogen of N-alkylated 5-nitrobenzimidazoles 1a-e with  2-(4-methoxyphenyl)acetonitrile 2 in basic MeOH solution and following with the intramolecular electrophilic aromatic substitution at room temperature (Scheme 1). In this reaction; nucleophilic substitution of hydrogen in N-alkylated 5-nitrobenzimidazoles has been used as a key step},
}