Patent ID: 8552182
Filing Date: 2013-10-08
Classification: C07D

Abstract:
1. A method for producing a 3-(substituted oxy)-4-pyridazinol compound represented by the following general formula (I): wherein: R R wherein, in the general formula (II), each of R and L the method comprising: reacting a compound represented by the following general formula (III): wherein R wherein M represents a hydrogen atom or an alkali metal, and R in the presence or absence of a base and in the presence or absence of a solvent to produce a 3-(substituted oxy)-4-pyridazinol compound represented by the general formula (I), wherein the base used is a metal hydroxide, a metal carbonate, a metal hydrogencarbonate, a metal alkoxide, an organic acid metal salt, a metal hydride, a metal, an amine, metal amide or an organometallic base, and wherein when the base is absent or an amine, M is an alkali metal.