反应详情

The 3-oxo-3-thiophen-2-yl-propionic acid was prepared from thiophene-2-carbonyl chloride (5.3 mL, 50 mmol) and bis(trimethylsilyl)malonate (25.6 mL, 100 mmol) with n-BuLi (1.6M in hexane, 62.5 mL) in ether at −60° C. to 0° C. according to the general procedure H (method c2). The crude material (7.88 g) was transformed into the title compound by stirring in isopropenyl acetate and TFA according to the general procedure J (method a). Obtained as a yellow solid (4.09 g).