An esculetin compound, an intermediate thereof, a process for manufacturing an esculetin compound, and an antifungal composition for agriculture and horticulture and an herbicide comprising an esculetin compound or an intermediate thereof are provided. The process for manufacturing an esculetin compound is a low-cost, high-yield, and industrially practicable process, and comprises the following step.
A process for manufacturing an esculetin compound of the formula (2):
characterized by cyclizing a trihydroxybenzaldehyde compound of the formula (1):
in an aprotic polar solvent in the presence of a weak base, with acetic anhydride or the like.
提供了一种
香豆素化合物、其中间体、制造
香豆素化合物的方法,以及用于农业和园艺的抗真菌组合物和包含
香豆素化合物或其中间体的
除草剂。制造
香豆素化合物的方法是一种低成本、高产率且工业可行的方法,包括以下步骤。制造化合物的过程是通过在无极性溶剂中的弱碱存在下使式(1)的三羟基
苯甲醛化合物环化,使用
乙酸酐等。