Tetrahydrofuran → Tributyl(iodomethyl)stannane

Beteiligte Stoffe

Reaktionsbedingungen

Reaktionsschritte

To a mixture of triphenylphosphine (70 g, 0.27 mol) and tetrahydrofuran (500 mL) was added dropwise a mixture of N-iodosuccinimide (60 g, 0.27 mol) and tetrahydrofuran (500 mL) at 0° C., and then the reaction mixture was stirred for 30 minutes at 0° C. To this mixture was added dropwise tributylstannyl-methanol (71 g, 0.22 mol) described in Manufacturing Example 197-2-1 at 0° C., and then the reaction mixture was stirred for 20 minutes at 0° C. The reaction mixture was stirred overnight at room temperature. Diethyl ether and water were added to the reaction mixture, and the organic layer was separated. The organic layer was washed first with a saturated sodium thiosulfate aqueous solution and then with saturated aqueous sodium chloride. The organic layer was separated, and was concentrated under a reduced pressure. Heptane (400 mL) was added to the residue and filtered. The solvent in the filtrate was evaporated under a reduced pressure, and the residue was purified by silica gel column chromatography (heptane) to obtain the title compound (90 g, 94%).

Herkunft & Nachweise