Water → HCID 118062710, compound

Participants

Reaction Steps

A solution of Intermediate 308A (1.4 g, 5.95 mmol) in ethanol (20 mL) and H2O (20 mL) was added a10% aq. solution of NaOH (10 mL, 5.95 mmol) and the reaction mixture was heated at reflux for 12 h. The reaction mixture was concentrated under reduced pressure to afford Intermediate 308B (1.0 g, 66% yield) as a gummy solid. The crude product was used in the subsequent reaction without purification. 1H NMR (400 MHz, chloroform-d) δ ppm 7.45 (dd, J=8.94, 5.05 Hz, 2H), 7.09 (t, J=8.66 Hz, 2H), 2.82-3.0 (m, 8H), 2.64-2.72 (m, 2H).

Provenance & Evidence