Add time:08/15/2019 Source:sciencedirect.com
1,7-Dihydrodiimidazo[4,5-b:4′,5′-e]pyridine obtained by reductive heterocyclization was N-arylated with 4-fluoronitrobenzene to form two regioisomers in 7 : 3 ratio. This N-arylation is considered as a model reaction for the polymer synthesis.
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