反应详情

The title compound was prepared from (4,5-dichloro-2-nitro-phenyl)-carbamic acid tert.-butyl ester (Example B2) (3.0 g, 9.77 mmol) and diethyl-amine (3.57 g, 48.8 mmol) in DMSO (35 mL) at 60° C. according to the general procedure C. Obtained as a yellow solid (2.63 g).