反应详情

温度

50 °C

2-Ethyl-9-nitroanthracene (2.55 g; 0.01 mole) (See Example 1) was dissolved in acetic acid (20 ml). To the clear solution at 50° C., there was slowly added tin (II) chloride (9.6 g; 0.051 mole) in concentrated HCl (25 ml). The solution was stirred at 50° C. for 15 minutes and allowed to cool to room temperature. The yellow solid which precipitated was filtered off, washed with water and then neutralised with 10% NaOH solution. The amino derivative was thoroughly washed with water, dried in air overnight and then under vacuo at 50° C. for 5 hours. Yield 1.98 g (88%). The product became brown in colour and was slightly sticky.

1. customat 50° C.
2. temperatureto cool to room temperature
3. customThe yellow solid which precipitated
4. filtrationwas filtered off
5. washwashed with water
6. washThe amino derivative was thoroughly washed with water
7. customdried in air overnight
8. waitunder vacuo at 50° C. for 5 hours