반응 #1506563

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4-nitro 2-hydroxy aniline

2,4-dibromo phenyl isocyanate

→

title compound

수율 39.4%

N-(2-hydroxy-4-nitrophenyl) N'-(2,4-dibromo phenyl) urea

수율 39.4%

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후처리

1. 1
   기타It was purified by dilution with methylene chloride and precipitation with hexane
2. 2
   여과Filtering

실험 절차

The urea was prepared from 4-nitro 2-hydroxy aniline(308 mg, 2 mmol) and 2,4-dibromo phenyl isocyanate(2 mmol) by general Method B. It was purified by dilution with methylene chloride and precipitation with hexane. Filtering afforded the title compound(0.34 g, 39%). EI-MS m/z 430(M+H)+

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