Morpholine → 1H-Indazole, 3-(4-morpholinyl)-5-nitro-

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Reaction Steps

3-Bromo-5-nitro-1H-indazole (0.5 gm, 2 mmol) was dissolved in 3.5 ml of morpholine and heated in a sealed tube for 40 hrs. The mixture was then cooled and added to ethylacetate, washed with brine and dried over magnesium sulfate. After chromatography on silica gel using 20-50% ethylacetate/hexanes as eluent the title compound was obtained (210 mg, 0.85 mmol).

Provenance & Evidence