PROCESSES FOR THE PREPARATION OF PESTICIDAL COMPOUNDS
申请人:Dow AgroSciences LLC
公开号:US20150112078A1
公开(公告)日:2015-04-23
The present application provides processes for making pesticidal compounds and compounds useful both as pesticides and in the making of pesticidal compounds.
本申请提供了用于制造杀虫化合物的过程,以及既可用作杀虫剂又可用于制造杀虫化合物的化合物。
Process for the preparation of 3-(3-chloro-1H-pyrazol-1-yl)pyridine
申请人:Dow AgroSciences LLC
公开号:US09199964B1
公开(公告)日:2015-12-01
3-(3-Chloro-1H-pyrazol-1-yl)pyridine is prepared by cyclizing 3-hydrazinopyridine.dihydrochloride with acrylonitrile to provide 1-(pyridin-3-yl)-4,5-dihydro-1H-pyrazol-3-amine, by oxidizing to provide 3-(3-amino-1H-pyrazol-1-yl)pyridine, and by converting the amino group to a chloro group by a Sandmeyer reaction.
Processes for the preparation of pesticidal compounds
申请人:Dow AgroSciences LLC
公开号:US09108946B2
公开(公告)日:2015-08-18
The present application provides processes for making pesticidal compounds and compounds useful both as pesticides and in the making of pesticidal compounds.
本申请提供了制备杀虫化合物的过程以及既可用作杀虫剂又可用于制备杀虫化合物的化合物。
PROCESS FOR THE PREPARATION OF 3-(3-CHLORO-1H-PYRAZOL-1-YL)PYRIDINE
申请人:Dow AgroSciences LLC
公开号:US20160031850A1
公开(公告)日:2016-02-04
3-(3-Chloro-1H-pyrazol-1-yl)pyridine is prepared by cyclizing 3-hydrazinopyridine-dihydrochloride with acrylonitrile to provide 1-(pyridin-3-yl)-4,5-dihydro-1H-pyrazol-3-amine, by oxidizing to provide 3-(3-amino-1H-pyrazol-1-yl)pyridine, and by converting the amino group to a chloro group by a Sandmeyer reaction.
Heterocyclic compounds of formula (I)
and their acid addition salts exhibit anti-inflammatory activity and when administered topically do not provide the side-effects associated with their systemic administration. The novel compounds of formula (I) may be prepared by methods known in the art and may be topically administered as the compound alone or in a suitable pharmaceutical formulation.