P-Anisidine → HCID 55034743, compound

Participants

Reaction Steps

The compound was prepared according to literature procedure. To a solution of cyclopropane-1,1-dicarboxylic acid (390.0 mg, 3.0 mmol) in dry THF (20 mL) in ice bath was added triethylamine (TEA; 0.40 mL, 3.1 mL) dropwise. The solution was stirred for 15 min and SOCl2 (0.20 mL, 2.9 mmol) was added to it. After 15 min reaction at such temperature, a solution of p-anisidine (387.0 mg, 3.1 mmol) in THF (5 mL) was added slowly. Reaction mixture was allowed to warm to rt and stirred for additional 18 h. After that, reaction mixture was diluted by EA; unconsumed diacid was quenched by 10% NaOH (0.5 mL). Crude product was extracted by EA and washed by water and brine. Organic portions were concentrated in vacuo. Solid precipitated by addition of n-heptane was collected by filter. Prolonged drying in vacuo gave the title compound. YD: 82%; mp 133-136° C. 1H-NMR (400 MHz, DMSO-d6) δ: 1.40 (s, 4H, 2×CH2), 3.71 (s, 3H, OCH3), 6.85 (d, J=8.8 Hz, 2H, ArH), 7.49 (d, J=8.8 Hz, 2H, ArH), 10.42 (s, 1H, NH). Anal. (C13H13NO4.0.5; H2O) C, H, N. MS (ESI) 233.8 (M−H)−.

Provenance & Evidence