反应详情

A solution of 5-cyclopropyl-1H-pyrazol-3-amine (1.8 g, 14.0 mmol) in n-BuOH (25 ml) was slowly added to the n-BuOH (60 ml) solution of 2,4-dichloro-6-methyl-5-nitropyrimidine (3.0 g, 14.0 mmol) and DIEA (2.4 g, 19.0 mmol). After 5 minutes, the reaction was diluted with hexane (100 ml). The resulting precipitate was collected by filtration to yield the title compound (4.1 g, 96%). MS: Calcd.: 294; Found: [M+H]+ 295.

1. filtrationThe resulting precipitate was collected by filtration