How is 1-(3-Hydroxy-4-methoxyphenyl)ethanone (CAS: 6100-74-9) typically synthesized?

1-(3-Hydroxy-4-methoxyphenyl)ethanone is typically synthesized via a condensation reaction between 3-hydroxy-4-methoxybenzaldehyde and acetaldehyde. The reaction is catalyzed by acid catalysts such as p-toluenesulfonic acid (p-TSA) and proceeds with a yield of about 70-80%. The process involves heating the mixture under reflux conditions for several hours, followed by purification using column chromatography or crystallization techniques.