2-氨基-4-硝基苯甲醚

2-氨基-4-硝基苯甲醚

2-methoxy-5-nitroaniline

99-59-2

C7H8N2O3

168.15000

81.07000

2.29000

168.05300

橙色至棕色粉末

166.6ºC

351.8ºC at 760mmHg

117-119 °C(lit.)

Slightly soluble.

1.2068

Stable, but may be moisture sensitive. Incompatible with water, acids, strong oxidizing agents, acid chlorides, acid anhydrides, chloroformates, liquid anisidine.

Store in a cool, dry, well-ventilated area away from incompatible substances. Keep containers tightly closed.

BZ7175000

6.1

2

S26-S36-S45-S36/37

I; II; III

Xn

R20/21/22

2922299090

2933990090

2933990090. 其他仅含氮杂原子的杂环化合物. 增值税率:17.0%. 退税率:13.0%. 监管条件:无. 最惠国关税:6.5%. 普通关税:20.0%

2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

<p>由2,4-二硝基氯苯经甲氧基化、还原而得。<br>1.甲氧基化将熔融的2,4-二硝基氯苯加入反应锅,再加入甲醇。加热至40℃左右,在4h内先快后慢地加入30%氢氧化钠溶液,温度控制在58-60℃。反应至酚酞试纸对料液显橘红色时为终点,得2,4-二硝基苯甲醚,收率为95%。<br>2.还原将上述甲氧基化生成物冷至30℃,在4h内先快后慢地加入18%的二硫化钠溶液,反应温度从30℃逐度上升至50℃。加完后在50-55℃保温半小时。反应完成后冷却至20℃,压滤、洗涤、干燥,得2-甲氧基-5-硝基苯胺。收率为76%。</p>

<p>用作染料、颜料及有机合成中间体</p>