Sodium Hydroxide → HCID 90413532, compound

Participants

Reaction Steps

(Z)-1-Ethyl-3-(2-ethyl-4-(2-ethylphenyl)-3-oxo-1,2,4-thiadiazolidin-5-ylidene)urea (CB42) (0.484 g, 1.51 mmol) was dissolved in methanol (150 mL). Sodium hydroxide (3.36 g, 84.0 mmol) was slowly added and the reaction was stirred at room temperature. After 4 hours the solution was concentrated to 1/2 volume, poured onto water, and extracted with ethyl acetate. The organics were dried and concentrated to give the title compound as an orange solid (0.249 g, 65%): 1H NMR (400 MHz, CDCl3) δ 7.35-7.32 (m, 2H), 7.30 (dd, J=5.4, 1.5 Hz, 1H), 7.25-7.20 (m, 1H), 3.65 (q, J=7.2 Hz, 2H), 3.39-3.19 (m, 1H), 2.73 (q, J=7.6 Hz, 2H), 1.26-1.13 (m, 6H); 13C NMR (101 MHz, CDCl3) δ 173.32, 165.49, 141.20, 135.74, 130.42, 129.31, 127.67, 126.01, 39.50, 24.79, 15.22, 14.93; ESIMS m/z 250 ([M]+).

Provenance & Evidence