We prepared a mixture of
7.5 mL of acetone with 127.7 mg (0.55 mmol) of C47, 141.5
mg (0.55 mmol) of C152, 187.1 mg (1.1 mmol) of THB, and
175.9 mg (1.1 mmol) of 2,4DHB. A solution of 10% by volume
Rotisilon A in dichloromethane was added and a 4 × 5.5 cm2
RP2-TLC disc was immersed in the solution for 5 min.
Subsequently, the disc was vacuum-dried at 60 °C for 60 min.