WO2026046293 - METHOD FOR PREPARING HERBICIDE COMPOUND
National phase entry is expected:
Publication Number
WO/2026/046293
Publication Date
05.03.2026
International Application No.
PCT/CN2025/117554
International Filing Date
28.08.2025
Title **
[English]
METHOD FOR PREPARING HERBICIDE COMPOUND
[French]
PROCÉDÉ DE PRÉPARATION D'UN COMPOSÉ HERBICIDE
[Chinese]
一种除草剂化合物的制备方法
Applicants **
QINGDAO DESU BIOTECHNOLOGY CO., LTD.
Inventors
LI, Zhiyun
LIU, Jinxing
LI, You
Priority Data
202411197971.X
29.08.2024
CN
Application details
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International Searching Authority |
CNIPA
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| Recordal of a Change of the Applicant's Name/Address |
Change of Applicant's Name and Address
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| Type of Assignment |
The Standard Agent's Assignment
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| Applicant's Legal Status |
Legal Entity
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| Entry into National Phase under |
Chapter I
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| Patent Delivery |
Send the Letters Patent by Courier
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| 译文 |
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Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing, Examination, Granting | 1577 | |
| EPO | Filing, Examination, Granting | 11551 | |
| Japan | Filing, Examination, Granting | 2000 | |
| South Korea | Filing, Examination, Granting | 1802 | |
| USA | Filing, Examination, Granting | 4740 |
Total:
21,670
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Abstract[English]
The present invention belongs to the field of organic chemical synthesis, and specifically relates to a method for preparing a herbicide compound. The method for preparing a compound comprises the following steps: subjecting compound I to a cyclization reaction to prepare compound II and byproduct aa, then adding a metal salt to decompose the byproduct, and conducting separation, so as to obtain target compound II. The preparation method of the present invention has a high yield, a high product purity and a simple process, and is suitable for industrial production.[French]
La présente invention relève du domaine de la synthèse chimique organique, et concerne plus particulièrement un procédé de préparation d'un composé herbicide. Le procédé de préparation d'un composé comprend les étapes suivantes consistant à : soumettre le composé I à une réaction de cyclisation pour préparer le composé II et le sous-produit aa, puis ajouter un sel métallique pour décomposer le sous-produit, et effectuer une séparation, de façon à obtenir le composé cible II. Le procédé de préparation de la présente invention offre un rendement élevé, une pureté de produit élevée et un processus simple, et est approprié pour une production industrielle.[Chinese]
本发明属于有机化学合成领域，具体涉及一种除草剂化合物的制备方法。所述化合物的制备方法包括以下步骤：化合物I经环合反应制得化合物II和副产物aa后，添加金属盐分解副产物，经分离得到目标化合物II。本发明制备方法收率高，产品纯度高，工艺简单，适于工业化生产。