Preparation method of pyrazole derivative

CN119264053AActive Publication Date: 2025-01-07SHANGHAI LINKCHEM TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202411371158.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-09-29
Publication Date
2025-01-07
Estimated Expiration
2044-09-29

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Abstract

The invention discloses a preparation method of pyrazole derivatives, and belongs to the field of organic synthesis. The preparation method comprises the following steps: in a first solvent, in the presence of an iodination reagent, carrying out iodination reaction on a compound I-1 to obtain a compound II-1; and the iodination reagent is selected from the group consisting of elemental iodine / oxidant, ICl, or a combination thereof. The preparation method is simple to operate, high in selectivity and suitable for industrial popularization. # imgabs0 #
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