METHOD FOR PRODUCING A 3-(SUBSTITUTED-OXY)-4-PYRIDAZINOL DERIVATIVE
申请人:Ikishima Hideaki
公开号:US20120184736A1
公开(公告)日:2012-07-19
Disclosed is a method for producing a 3-(substituted oxy)-4-pyridazinol derivative represented by the general formula (I), which comprises reacting a compound represented by the general formula (III) with a compound represented by the general formula (IV) in the presence or absence of a base and in the presence or absence of a solvent. According to the present invention, a 3-(substituted oxy)-4-pyridazinol derivative represented by the general formula (I) can be produced in high yield and with high selectivity.
Method for producing a 3-(substituted-oxy)-4-pyridazinol derivative
申请人:Ikishima Hideaki
公开号:US08552182B2
公开(公告)日:2013-10-08
A method for producing a 3-(substituted oxy)-4-pyridazinol compound represented by the following general formula (I):
comprising reacting a compound represented by the following general formula (III):
with a compound represented by the following general formula (IV):
MO—R2 (IV).
The compound represented by the general formula (I) can be reacted with a compound represented by the following general formula (VI):
to provide a compound of general formula (V):
Each of the groups in the formulas is defined. The compounds of general formulas (I) and (V) can be obtained in a high yield and with high selectivity at a low cost, and therefore various functional and active substances can be advantageously synthesized using the compounds as a medicine, an agricultural chemical, a functional material, or an intermediate thereof.
[EN] TRIAZOLOPYRIDAZINE DERIVATIVE, PREPARATION METHOD THEREFOR, PHARMACEUTICAL COMPOSITION THEREOF, AND USE THEREOF<br/>[FR] DÉRIVÉ DE TRIAZOLOPYRIDAZINE, SON PROCÉDÉ DE PRÉPARATION, COMPOSITION PHARMACEUTIQUE ASSOCIÉE ET UTILISATION CORRESPONDANTE<br/>[ZH] 三唑并哒嗪类衍生物、其制备方法、药物组合物和用途