Imidazole → (2-Iodoethyl)cyclohexane

Participants

Reaction Steps

Into a 250-mL 3-necked round-bottom flask was placed 2-cyclohexylethan-1-ol (3 g, 23.40 mmol, 1.00 equiv), imidazole (2 g, 29.41 mmol, 1.26 equiv), PPh3 (8 g, 30.50 mmol, 1.30 equiv), tetrahydrofuran (60 mL) and I2 (7.7 g, 30.31 mmol, 1.30 equiv). The resulting solution was stirred for 4 h at room temperature. The reaction was then quenched by the addition of 100 mL of sodium bicarbonate (sat.). The resulting solution was extracted with 2×100 mL of ethyl acetate and the organic layers combined and concentrated under vacuum. The residue was applied onto a silica gel column with petroleum ether. Purification afforded 4.4 g (79%) of (2-iodoethyl)cyclohexane as a colorless oil.

Provenance & Evidence