Tetrahydrofuran → Ethyl (2-methoxy-6-nitrophenyl)carbamate

Beteiligte Stoffe

Reaktionsschritte

17.1 mL (0.141 mol) trichloromethylchloroformate are added dropwise at reflux temperature to a solution of 23.8 g (0.142 mol) 2-methoxy-6-nitro-phenylamine in 300 mL THF and then the mixture is stirred for 4 hours at this temperature. The solvent is distilled off and the residue is stirred with isopropanol, during which time a yellow solid is precipitated. Yield: 25.0 g (73%); mass spectroscopy: [M+H]+=241.

Herkunft & Nachweise