1-Bromohexane → HCID 22559392, compound

Participants

Reaction Steps

According to the general alkylation method, tert-butyl-2-acetoxy-aceto-acetate (219a) (1.08 g, 5.00 mmol), NaH (156 mg, 6.5 mmol) and hexylbromide (702 μL, 825 mg, 5.00 mmol) were reacted in DMF (10 mL) to give 2-acetoxy-2-acetyl-octanoic-acid-tert-butylester (250k) (1063 mg, 3.54 mmol, 71%) as a slightly yellow oil. Then, 250k (2.19 g, 7.29 mmol) and 139 mg (0.73 mmol) p-TsOH.H2O were stirred in 22.0 mL benzene according to decarboxylation method A. Kugelrohr distillation at 0.8 mbar and 80° C. and subsequent flash-chromatography (column dimensions: 2.0×20.0 cm, diethylether/petroleum ether=1:6) gave 251k (419 mg 2.10 mmol, 29%) as a colorless oil.

Provenance & Evidence