1-Hydroxybenzotriazole → 2-(2-Iodophenyl)acetamide

2-Iodophenylacetic acid (2.00 g, 7.63 mmol) was dissolved in dry THF (70 mL) and dry DMF (10 mL) under an atmosphere of nitrogen. To the solution were added 1-hydroxybenzotriazole (1.134 g, 8.396 mmol) and EDCl (1.609 g, 8.396 mmol) and N,N-diisopropylethylamine (5.318 mL, 30.53 mmol) and the reaction mixture was stirred at room temperature for 10 minutes. Ammonium carbonate (2.933 g, 30.53 mmol) was added in one portion, and the reaction was stirred room temperature for 17 hours. The volatiles were removed in vacuo and the residual solution was diluted with EtOAc (150 mL) and sat. aq. NaHCO3 (100 mL). The layers were separated and the organic layer were washed with water (100 mL), brine (100 mL), dried (MgSO4), filtered and concentrated in vacuo to give the title compound (I38) (1.755 g, 88% yield) as a beige solid; 1H NMR (400 MHz, d6-DMSO) δ 7.82 (dd, J=7.9, 0.9 Hz, 1H), 7.42 (s, 1H), 7.36-7.28 (m, 2H), 7.02-6.94 (m, 2H), 3.55 (s, 2H). LCMS Method C: rt 4.77 min; m/z 262.0 [M+H]+.

1. stirringthe reaction was stirred room temperature for 17 hours
2. customThe volatiles were removed in vacuo
3. additionthe residual solution was diluted with EtOAc (150 mL) and sat. aq. NaHCO3 (100 mL)
4. customThe layers were separated
5. washthe organic layer were washed with water (100 mL), brine (100 mL)
6. dry with materialdried (MgSO4)
7. filtrationfiltered
8. concentrationconcentrated in vacuo

ORD record

ord-f0a35f6c59ba4ab89865854bf156086c

Source dataset

uspto-grants-2016_08

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US09421205B2