Sodium Hydroxide → HCID 118061507, compound

Participants

Reaction Steps

To a stirred solution of Intermediate 350D (0.500 g, 1.118 mmol) in ethanol (10 mL) and water (1 mL) was added NaOH (0.369 g, 9.21 mmol) and the resulting solution was stirred at RT for 12 h. The volatiles were removed under reduced pressure and the residue was acidified with an aqueous solution of 1.5 N HCl. The solid product separated was filtered through a Buchner funnel and dried under vacuum to afford Intermediate 350E as a white solid (0.43 g, 90%). MS(ES): m/z=420 [M+H]+; 1H NMR (400 MHz, chloroform-d) δ ppm 6.19 (br. s., 1H), 4.92 (br. s., 2H), 4.06 (br. s., 2H), 1.48 (s, 9H), 1.19 (br. s., 2H), 1.01-0.83 (m, 2H).

Provenance & Evidence