A process is disclosed for preparing hydroxyarylaldehydes wherein a corresponding phenolic compound is reacted with formaldehyde, in the presence of a titanium or zirconium containing catalyst, optionally in the presence of a catalyst promoter. Among other uses, the aldehydes are particularly useful as intermediates in the preparation of the corresponding oximes, which find utility as metal extractants.
本发明公开了一种制备羟基芳醛的工艺,其中相应的
酚类化合物与
甲醛在含
钛或
锆的催化剂存在下,或在催化剂
促进剂存在下发生反应。除其他用途外,这些醛类化合物尤其可用作制备相应
肟的中间体,这些
肟可用作
金属萃取剂。