Synthesis of vinyl ethers of furfurylideneaminophenols

The reaction of furfural and its homologs with vinyl and ethyl ethers of o-, m-, and p-aminophenols at room temperature without the addition of any catalyst whatever leads to the amine-aldehyde condensation with the formation of the corresponding ethers of furfurylidene-aminophenols. The structure of the latter has been shown by hydrolysis, hydrogenation, and independent synthesis.