Reductive coupling reactions between 4-[18F]fluoro-benzaldehyde ([18F]1) and different alcohols by use of decaborane (B10H14) as reducing agent have the potential to synthesize 4-[18F]fluoro-benzylethers in one step. [18F]1 was synthesized from 4-trimethylammonium benzaldehyde (triflate salt) via a standard fluorination procedure (K[18F]F/Kryptofix® 222) in dimethylformamide at 90°C for 25 min and