4-Difluoromethoxy-3-hydroxybenzaldehyde is an organofluorine compound, mainly used as an intermediate in organic synthesis. It is used in the synthesis of the impurity N-(3,5-dichloropyrid-4-yl)-4-difluoromethoxy-3-hydroxybenzamide isolated from roflumilast crude[1].
4-Difluoromethoxy-3-hydroxybenzaldehyde is white powder
4-Difluoromethoxy-3-hydroxybenzaldehyde is a phenyl alkyl ketone derivative used in the preparation of phosphodiesterase-4 (PDE4) inhibitors.
[1] YAN LIN. Isolation, synthesis and structure confirmation of the impurity in crude roflumilast product[J]. Research on Chemical Intermediates, 2012. DOI:10.1007/s11164-012-0823-3.
