反应详情

The title compound was prepared from (4,5-dichloro-2-nitro-phenyl)-carbamic acid tert.-butyl ester (Example B2) (5.0 g, 16.3 mmol) and isopropylamine (7.0 ml, 81.4 mmol) in DMSO (35 mL) at 55° C. according to the general procedure C. Obtained as a brown solid (3.95 g, 73%).