Tetrabutylammonium Fluoride → alpha-Ethynylbenzenemethanol

Beteiligte Stoffe

Reaktionsbedingungen

Reaktionsschritte

Place a mixture of α-[(trimethylsilyl)ethynyl]-benzene-methanol (4.09 g, 20 mmol) and tetrahydrofuran (25 mL) under argon atmosphere and cool to 0° C. Add, by dropwise addition, tetra-n-butylammonium fluoride (25 mL of a 1M solution in tetrahydrofuran, 25 mmol). Allow to warm to room temperature and stir for 1 hour. Partition between ethyl ether and water. Separate the organic phase, wash with saturated aqueous sodium chloride and concentrate in vacuo. Purify by silica gel chromatography (15% ethyl acetate/hexane) then purify further by distillation to yield 2.15 g of the title compound; bp 100°-110° C. @0.1 mm Hg.

Herkunft & Nachweise