Hydrochloric Acid → HCID 131729267, compound

Participants

Reaction Steps

Firstly, i-PrMgCl (0.71 mL, 2 M in THF, 1.42 mmol) was added dropwise to a THF solution (2 mL) of 4-(diallylethoxysilyl)iodobenzene (255 mg, 0.71 mmol) obtained in Synthesis example 7 at −30° C. The resultant mixture was stirred under a nitrogen atmosphere at −30° C. for 1.5 hours to obtain a solution containing 4-(diallylethoxysilyl)phenylmagnesium chloride (Grignard solution). Then, DMF (110 μL, 1.42 mmol) was added dropwise to the obtained solution at −30° C., and the resultant mixture was stirred under a nitrogen atmosphere at room temperature for 13 hours to obtain a reaction mixture. Subsequently, an aqueous solution of HCl of 10% by mass was added to the reaction mixture to cease the reaction. After that, an organic layer was separated from the reaction mixture, and an aqueous layer was extracted with ether. The organic layer thus collected was washed with sat. NaHCO3 and sat. NaCl, and dried with MgSO4. The dried organic layer was filtered and concentrated to obtain a crude product. The crude product was separated and purified by silica gel column chromatography (hexane/EtOAc=20/1) to obtain 4-(diallylethoxysilyl)benzaldehyde (158 mg, 85% yield).

Provenance & Evidence