CN101302190B - 一种制备2,3-二氯吡啶的方法 - Google Patents
一种制备2,3-二氯吡啶的方法 Download PDFInfo
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- CN101302190B CN101302190B CN2008100552919A CN200810055291A CN101302190B CN 101302190 B CN101302190 B CN 101302190B CN 2008100552919 A CN2008100552919 A CN 2008100552919A CN 200810055291 A CN200810055291 A CN 200810055291A CN 101302190 B CN101302190 B CN 101302190B
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- aminopyridine
- chlorination
- dichloropyridine
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- sodium nitrite
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Abstract
Description
实施例编号 | 氯化催化剂 | 产品质量(g) | 产品含量(%) | 摩尔收率(%) |
3 | FeCl3 | 51.9 | 99.4 | 69.7 |
4 | Fe(NO3)3 | 50.6 | 99.3 | 67.9 |
5 | Fe2(SO4)3 | 50.8 | 99.4 | 68.2 |
6 | FeSO4 | 51.5 | 99.3 | 69.1 |
实施例编号 | 氯化催化剂 | 产品质量(g) | 产品含量(%) | 摩尔收率(%) |
7 | FeCl3 | 50.4 | 99.6 | 67.8 |
8 | Fe2O3 | 50.1 | 99.3 | 67.2 |
9 | FeO | 51.8 | 99.6 | 69.7 |
10 | Fe(NO3)2 | 50.7 | 99.3 | 68 |
实施例编号 | 重氮化/氯代催化剂 | 产品质量(g) | 产品含量(%) | 摩尔收率(%) |
11 | CuCl | 53.3 | 99.3 | 71.5 |
12 | CuCl2 | 51.2 | 99.3 | 68.7 |
13 | CuSO4 | 51 | 99.3 | 68..4 |
14 | Cu2O∶CuSO4=2∶1 | 52.3 | 99.4 | 70.3 |
15 | Cu2O∶CuO=3∶1 | 52.5 | 99.6 | 70.7 |
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CN101302190A CN101302190A (zh) | 2008-11-12 |
CN101302190B true CN101302190B (zh) | 2011-07-27 |
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Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102153507B (zh) | 2011-03-13 | 2012-11-21 | 联化科技股份有限公司 | 一种2,3-二氯吡啶的制备方法 |
CN103145609B (zh) * | 2013-03-05 | 2015-08-05 | 衢州恒顺化工有限公司 | 一种2,3-二氯吡啶的制备方法 |
CN103193703B (zh) * | 2013-04-26 | 2014-10-15 | 山东天信化工有限公司 | 一种2,3-二氯吡啶的提纯方法 |
CN103232388A (zh) * | 2013-05-07 | 2013-08-07 | 山东天信化工有限公司 | 一种2,3-二氯吡啶和2,3,6-三氯吡啶的分离方法 |
CN103570609B (zh) * | 2013-10-28 | 2015-11-18 | 南通天泽化工有限公司 | 一种2,3-二氯吡啶的制备方法 |
CN103833512B (zh) * | 2014-02-20 | 2015-07-01 | 常州市正锋光电新材料有限公司 | 一种高温下重氮化一步合成邻二溴苯的方法 |
CN104649965B (zh) * | 2015-02-10 | 2016-02-24 | 湖南比德生化科技有限公司 | 3,4,5,6-四氯吡啶甲酸的制备方法 |
CN104926715A (zh) * | 2015-06-03 | 2015-09-23 | 安徽绩溪县徽煌化工有限公司 | 一种2,3-二氯吡啶的制备方法 |
CN113292486A (zh) * | 2021-06-08 | 2021-08-24 | 安徽星宇化工有限公司 | 一锅法2,3-二氯吡啶合成方法 |
CN114716368B (zh) * | 2022-02-21 | 2024-04-12 | 上海华谊(集团)公司 | 2-氯-3-氨基吡啶及其盐酸盐的制备方法 |
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TWI336325B (en) * | 2004-01-23 | 2011-01-21 | Du Pont | Process for the manufacture of 2,3-dichloropyridine |
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