Invention Grant
- Patent Title: Process for preparing pyrazoles
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Application No.: US15329104Application Date: 2015-07-30
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Publication No.: US10414733B2Publication Date: 2019-09-17
- Inventor: Birgit Gockel , Daniel Saelinger , Sebastian Soergel , Michael Rack
- Applicant: BASF SE
- Applicant Address: DE Ludwigshafen
- Assignee: BASF SE
- Current Assignee: BASF SE
- Current Assignee Address: DE Ludwigshafen
- Agency: Brinks Gilson & Lione
- Priority: EP14179249 20140731
- International Application: PCT/EP2015/067507 WO 20150730
- International Announcement: WO2016/016369 WO 20160204
- Main IPC: C07D401/12
- IPC: C07D401/12 ; C07D403/12 ; C07D231/14 ; C07D405/06

Abstract:
The present invention relates to a process for preparing a pyrazole compound of formula V, the process including cyclizing a hydrazone substituted α,β-unsaturated carbonyl compound of formula IV by reacting it with a suitable reagent, e.g. a reducing agent, an organometallic reagent or a nucleophilic reagent. The compounds of formula V are versatile reaction tools for the preparation of pyrazole derived fine chemicals. The present invention also relates to pyrazole compounds of formulae Va, Vb, Vc, and VI.
Public/Granted literature
- US20180086715A9 PROCESS FOR PREPARING PYRAZOLES Public/Granted day:2018-03-29
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