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| CAS号 : | 1775-95-7 |
精确质量 : | 242.06900 |
| 分子式 : | C13H10N2O3 |
logP : | 3.51240 |
| 分子量 : | 242.23000 |
PSA : | 88.91000 |
2-氨基-5-硝基二苯甲酮 | |
2-Amino-5-nitrobenzophenone | |
1775-95-7 | |
C13H10N2O3 | |
242.23000 | |
88.91000 | |
3.51240 | |
242.06900 |
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1.657
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黄色固体
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242.9ºC
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478.1ºC at 760 mmHg
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166-168 °C(lit.)
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1.333 g/cm3
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3 mg/L (20 C)
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2.65E-09mmHg at 25°C
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Stable under normal temperatures and pressures.
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Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
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PC4935000
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3
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S26-S37/39
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Xi
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R36/37/38
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2922399090
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2933990090
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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% |
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<p>由对硝基苯胺和苯甲酰氯缩合而得。将对硝基苯胺、苯甲酰氯和氯化锌加入反应罐内搅拌，加热使物料全部熔化。升温至140℃，保温30min。继续升温至200℃左右，保温反应2h，冷至115-120℃，搅拌水解15h。加入2.5倍稀盐酸，冷至35℃，过滤。滤饼用稀盐酸洗涤，滤干。加4倍量的水搅成糊状，加碱到pH为11，浸泡2-3h（浸泡过程中要补加碱，加碱到pH为<br>11）。过滤，滤饼用水洗使pH为6-7。滤干，干燥得二苯酮粗品。加适量活性炭和10倍量的乙醇，加热回流4h。趁热过滤。滤液冷却结晶。甩滤，滤饼用冷乙醇洗涤，滤干，干燥即得。收率为25%。</p> | |
<p>用作医药中间体</p> |
