Methyl iodide → HCID 67263618, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of (2-amino-4-nitro-benzylamino)-acetic acid tert-butyl ester (0.33 g, 1.16 mmol), iodomethane (0.22 mL, 3.5 mmol) and 2-tert-butylimino-2-diethyl-amino-1,3-dimethyl-perhydro-1,2,3-diazaphosphorine on polystyrene (Fluka) (2.6 g, 5.8 mmol) in THF (15 mL) was heated at 40° C. for 6 hours. Filtration, filtrate solvent evaporation, and chromatography on preparative TLC with methylene chloride and methanol (40:1) gave 0.23 g of [(2-amino-4-nitro-benzyl)-methyl-amino]-acetic acid tert-butyl ester in 67% yield: 1H NMR (300 MHz, CDCl3) δ 7.54 (d, 1H), 7.52 (s, 1H), 7.18 (d, 1H), 5.43 (br, 2H), 4.73 (s, 2H), 4.25 (s, 2H), 2.35 (s, 3H), 1.37 (s, 9H); MS (m/e): 296.4 (M+1).

Provenance & Evidence