2.2.5. Compound IIc A 50-ml three-necked flask equipped with a stirrer, a reflux

Question

2.2.5. Compound IIc A 50-ml three-necked flask equipped with a stirrer, a reflux condenser, and a dropping funnel was charged with N-(4 nitrophenyl)carbazole (III) (2.595 g, 9 mmol), 10% Pd/C (0.09 g), and ethanol (27 ml), and the mixture was heated to boiling. Then, hydrazine monohydrate (2.3 ml) was slowly added dropwise, and the reaction mixture was boiled for 10 h. The mixture was cooled to room temperature, and the residual catalyst was filtered off. The filtrate was evaporated in a rotary evaporator to obtain yellow crystals. Yield, 2.07 g (89%), m.p. 91-93°C (lit. m.p. 91-93T [10]). IR (KBr): v 3432, 3351 cm-1 (N-H). 'H NMR (400 MHz, CDCl3): 8.21 (d, 2H), 7.745-7.35 (m, 8H), 6.90 (d, 2H), 3.92 (s, 2H, NH2) ppm Found (%): C, 83.30; H, 5.51; N, 10.75.

Explanation / Answer

Yes If you to start with 0.05 g of your 4-nitrophenyl carbazole the calculations shown below,

is correct.

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