Piperidine → 3-(3-Fluoro-4-methoxy-phenylsulfanyl)-3-methyl-butyric acid

Participants

Reaction Conditions

Reaction Steps

A heavy-walled screw cap tube was charged with 3-methyl-2-butenoic acid (1.23 g, 12.33 mmol), 3-fluoro-4-methoxy thiophenol (Compound 200, 1.95 g, 12.33 mmol), and piperidine (314.8 mg, 3.70 mmol). This mixture was heated to 105° C. for 23 hours, cooled to room temperature and dissolved in EtOAc (100mL). The resulting solution was washed with 1M aqueous HCl, H2O, and saturated aqueous NaCl before being dried over Na2SO4. Concentration of the dry solution under reduced pressure afforded 3.22 g of a clear yellow oil which was used in the next reaction without further purification. 1H NMR (300 MHz, CDCl3) δ: 7.32 (2H, m), 6.94 (1H, t, J=8.4 Hz), 3.92 (3H, s), 2.54 (2H, s), 1.41 (6H, s).

Provenance & Evidence