Yu Wei
2001
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Journal
Journal of Natural Science of Heilongjiang University
Abstract
Bromo-2, 3-Dicyanonaphthalene was synthesized from o-xylene by three steps: electrophilic aromatic substitution, free radical halogenation and electrocyclic reaction. The better syn- thetic conditions were obtained by changing reaction conditions, such as the quantity of catalyst, the reaction time and the irradiation time. Owing to adopting new reaction conditions, the yield was increased 7.3%, the reaction was easily controlled, the separation process was simplified and the cost was decreased.