Sodium Hydroxide → HCID 59511941, compound

Participants

Reaction Steps

To a solution of 5-(1,3-benzodioxol-5-yl)-3,3-dimethyl-5-oxopentanoic acid (444 mg, 1.68 mmol) and N,N-diisopropylethylamine (0.292 mL, 1.68 mmol) in chloroform, add diphenylphosphorylazide (0.364 mL, 1.68 mmol). Stir at room temperature for 2 days, then treat with 2N NaOH. After 1 h, dilute the reaction with chloroform and water, then separate the organic layer and dry with magnesium sulfate, filter, and concentrate under reduced pressure to obtain 132 mg (36%) of the title compound. MS: 218 [M+H]+; 1H NMR (300 MHz, CDCl3): δ 7.40 (s, 1H), 7.20-7.24 (m, 1H), 6.78-6.81 (m, 1H), 6.00 (s, 2H), 3.75-3.74 (m, 2H), 2.72-2.71 (m, 2H) and 1.16 (s, 6H).

Provenance & Evidence