2-(2,2-diethoxyethoxy)propane

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: NaH (3.35 g, 84 mmol) was added to isopropanol (5.38 mL, 69.9 mmol) at 0° C. The reaction mixture was stirred at room temperature for 30 min followed by the addition of 2-bromo-1,1-diethoxyethane (7.89 mL, 52.4 mmol). The tube was sealed, heated to 120° C. and stirred overnight. The sealed tube was cooled to room temperature and the contents were dissolved in DCM and washed with water twice. The organic layer was separated, dried over sodium sulfate and concentrated in vacuo to give 2-(2,2-diethoxy-ethoxy)-propane, which was hydrolyzed according to the method described in example 29 to give crude isopropoxy-acetaldehyde. The tube was sealed heated to 120° C. stirred overnight The sealed tube was cooled to room temperature washed with water twice The organic layer was separated dried over sodium sulfate concentrated in vacuo