Cyclopentanecarbaldehyde → HCID 59812873, compound

Participants

Reaction Conditions

Reaction Steps

4,6-Dichloro-2-methylsulfanyl-pyrimidine (8.0 g, 41.01 mmol) was dissolved in 500 mL dry THF and cooled to −78° C. Lithium diisopropylamine (36.9 mL of 2.0 M solution in hexanes) was added dropwise, and the reaction mixture was stirred for 20 minutes at −78° C. Cyclopentane-carboxaldehyde (8.05 g, 82.02 mmol was added, and the reaction mixture was stirred for 45 minutes at −78° C. The reaction was quenched by addition of saturated aqueous ammonium chloride. The aqueous mixture was extracted with ethyl acetate, and the combined organic layers were washed with water, washed with brine, dried (MgSO4), filtered, and evaporated under reduced pressure. The residue was purified by flash chromatography (5% to 40% EtOAc in hexanes) to yield 9.76 g of cyclopentyl-(4,6-dichloro-2-methylsulfanyl-pyrimidin-5-yl)-methanol. Mass Spec. M+H=294.

Provenance & Evidence