CN108424381A - 一种氯吡苯脲生产工艺 - Google Patents

一种氯吡苯脲生产工艺 Download PDF

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Publication number
CN108424381A
CN108424381A CN201710077374.7A CN201710077374A CN108424381A CN 108424381 A CN108424381 A CN 108424381A CN 201710077374 A CN201710077374 A CN 201710077374A CN 108424381 A CN108424381 A CN 108424381A
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forchlorfenuron
production technology
reaction
benzene
chloro
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Inventor
胡江海
张晓磊
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Center For Intellectual Property Investment Co Ltd
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Center For Intellectual Property Investment Co Ltd
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Priority to CN201710077374.7A priority Critical patent/CN108424381A/zh
Publication of CN108424381A publication Critical patent/CN108424381A/zh
Pending legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
    • C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
    • C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
    • C07D213/60—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D213/72—Nitrogen atoms
    • C07D213/75—Amino or imino radicals, acylated by carboxylic or carbonic acids, or by sulfur or nitrogen analogues thereof, e.g. carbamates

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

氯吡苯脲是一种具有细胞分裂素活性的苯脲类植物生长调节剂，其生物活性却较6‑苄氨基嘌呤高10‑100 倍。广泛用于农业，园艺和果树。本发明提供一种氯吡苯脲生产工艺。

Description

一种氯吡苯脲生产工艺
技术领域
本发明涉及化工生产领域，尤其是氯吡苯脲生产领域。
背景技术
氯吡苯脲是一种具有细胞分裂素活性的苯脲类植物生长调节剂，其生物活性却较6-苄氨基嘌呤高10-100 倍。广泛用于农业，园艺和果树。它能够影响植物芽的发育、加速细胞有丝分裂、促进细胞增大和分化，防止果实和花的脱落的作用，从而促进植物生长、早熟、延缓作物后期叶片的衰老、增加产量。主要表现在：①促进茎、叶、根、果生长的功能，如用于烟草种植可使叶片肥大而增产。②促进结果。可以增加西红柿（番茄）、茄子、苹果等水果和蔬菜的产量。③加速疏果和落叶作用。疏果可增加果实产量，提高品质，使果实大小均匀。对棉花和大豆言，落叶可使收获易行。④浓度高时可作除草剂。⑤其他。如棉花的干枯作用，甜菜和甘蔗增加糖分等。
发明内容
本发明提供一种氯吡苯脲生产工艺。合成生产工艺：向20L 单层玻璃反应器，用泵通过导管分别泵入2-氯-4-氨基吡啶、过量异氰酸苯酯和苯，倒入反应瓶中，通过油浴加热器加热搅拌并反应6-8 小时。待冷却后过滤，滤液回至反应瓶重复使用。过滤后得到的固体用苯洗涤2-3 次，一部分洗涤液用于补充反应溶剂，另一部分采用玻璃分馏装置进行分馏，将溶剂与剩余的异氰酸苯酯（投料是过量的，2-氯-4-氨基吡啶已反应完全）分离，收集的溶剂用于洗涤，收集的异氰酸苯酯作为原料使用。将洗涤后的固体进行干燥，得到产品氯吡苯脲原料。
附图说明：
图1是反应方程式。

Claims (2)

1.本发明提供一种氯吡苯脲生产工艺。
2.权利要求1描述的生产工艺：：向20L 单层玻璃反应器，用泵通过导管分别泵入2-氯-4-氨基吡啶、过量异氰酸苯酯和苯，倒入反应瓶中，通过油浴加热器加热搅拌并反应6-8 小时；待冷却后过滤，滤液回至反应瓶重复使用；过滤后得到的固体用苯洗涤2-3 次，一部分洗涤液用于补充反应溶剂，另一部分采用玻璃分馏装置进行分馏，将溶剂与剩余的异氰酸苯酯（投料是过量的，2-氯-4-氨基吡啶已反应完全）分离，收集的溶剂用于洗涤，收集的异氰酸苯酯作为原料使用；将洗涤后的固体进行干燥，得到产品氯吡苯脲原料。
CN201710077374.7A 2017-02-14 2017-02-14 一种氯吡苯脲生产工艺 Pending CN108424381A (zh)

Priority Applications (1)

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CN201710077374.7A CN108424381A (zh) 2017-02-14 2017-02-14 一种氯吡苯脲生产工艺

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CN201710077374.7A CN108424381A (zh) 2017-02-14 2017-02-14 一种氯吡苯脲生产工艺

Publications (1)

Publication Number Publication Date
CN108424381A true CN108424381A (zh) 2018-08-21

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114805195A (zh) * 2022-06-02 2022-07-29 陈峥峰 一种植物生长促进用氯吡苯脲的制备方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114805195A (zh) * 2022-06-02 2022-07-29 陈峥峰 一种植物生长促进用氯吡苯脲的制备方法

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Application publication date: 20180821