How is 3-(3-Fluorobenzyl)-4-[(3-fluorobenzyl)oxy]benzaldehyde (CAS: 1000370-24-0) typically synthesized?

3-(3-Fluorobenzyl)-4-[(3-fluorobenzyl)oxy]benzaldehyde is typically synthesized through a multi-step process involving the coupling of benzaldehyde and 3-fluorobenzyl bromide. The reaction is typically catalyzed by a phase-transfer catalyst, and the product can be isolated by recrystallization from an appropriate solvent. The yield of the reaction is around 70-75%.