Iodoethane → HCID 18947544, compound

Participants

Reaction Steps

To a cold solution (0° C.) of diisopropylamine (0.80 mL, 5.7 mmol) in THF (5 mL) was added a 1.6M solution of butyllithium in hexane (3.4 mL, 5.4 mmol) over a 5 minute period and stirring was continued for an additional 45 min. Then a solution of methyl 4-chloro-2-ethyl-4-pentenoate (800 mg, 5 mmol) from Example 27, Step A, in THF (2 mL) was added and the reaction was stirred at 0° C. for another 30 minutes. Then ethyl iodide (440 μL, 5.5 mmol) was added and the reaction was allowed to proceed at room temperature for 2 hours. The reaction was quenched with NH4OAc buffer (50 mL of 25% w/v) and extracted with EtOAc. The organic layer wag separated, dried over MgSO4, filtered and concentrated. The crude product was purified by Kugelrohr distillation (b.p. 120° C. at 0.1 mm Hg) to give the title compound.

Provenance & Evidence