Tetrahydrofuran → HCID 178470115, compound

Participants

Reaction Steps

To a stirred solution of ethyl N-(t-butoxycarbonyl)isonipecotate (1.06 g, 4.12 mmol) in THF (8 mL) at −78° C. was added LDA (1.5M, 2.75 mL, 4.12 mmol) dropwise, and the mixture was stirred for 30 minutes before addition of a solution of dicyclopropylthioketone (415 mg, 3.30 mmol) in THF (1 mL). After the addition, the reaction mixture was warmed to room temperature over 2 hours, quenched with satd aq NH4Cl, and extracted with EtOAc. The combined organic extracts were dried over Na2SO4, filtered, and concentrated to afford the title compound as a viscous oil (1.53 g, 96%), which was used in the next step without further purification.

Provenance & Evidence