Invention Grant
US09255081B1 Process for the preparation of 3-(3-chloro-1H-pyrazol-1-yl)pyridine
有权
3-（3-氯-1H-吡唑-1-基）吡啶的制备方法
- Patent Title: Process for the preparation of 3-(3-chloro-1H-pyrazol-1-yl)pyridine
- Patent Title (中): 3-（3-氯-1H-吡唑-1-基）吡啶的制备方法
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Application No.: US14666814Application Date: 2015-03-24
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Publication No.: US09255081B1Publication Date: 2016-02-09
- Inventor: Xiaoyong Li , Qiang Yang , Gary Roth , Beth Lorsbach
- Applicant: Dow AgroSciences LLC
- Applicant Address: US IN Indianapolis
- Assignee: Dow AgroSciences LLC
- Current Assignee: Dow AgroSciences LLC
- Current Assignee Address: US IN Indianapolis
- Agency: Barnes & Thornburg LLP
- Agent Carl D. Corvin
- Main IPC: C07D401/04
- IPC: C07D401/04
Abstract:
3-(3-Chloro-1H-pyrazol-1-yl)pyridine is prepared by cyclizing 3-hydrazinopyridine.dihydrochloride with commercially available 3-ethoxyacrylonitrile to provide 3-(3-amino-1H-pyrazol-1-yl)pyridine, and by converting the amino group to a chloro group by a Sandmeyer reaction.
Public/Granted literature
- US20160031848A1 PROCESS FOR THE PREPARATION OF 3-(3-CHLORO-1H-PYRAZOL-1-YL)PYRIDINE Public/Granted day:2016-02-04
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