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Synthesis of (E)-9-(2-nitrovinyl)anthracenes, (E)-9-(3-nitroallyl)anthracenes and (E)-9-(2-nitrovinyl)phenanthrene. Scheme reagents and conditions: (a) R-NO2, piperidine acetate, 90 °C, 1.5 h, R = H, CH3, CH2CH3; or R-NO2, cyclohexylamine, acetic acid, 20 min MW; (10–99%); (b) NaBH4, DCM, 20 °C, 24 h, 85%.
