反应详情

温度

80 °C

Two 20 ml tubes each containing a mixture of 614 mg of 1-methyl-4-[2-methyl-4-nitro-5-(propan-2-yloxy)phenyl]piperazine, 185 mg of 10% Pd on carbon and 793 mg of ammonium formate in 10 ml of methanol are microwave-heated at 80° C. (P 6-7 bar) for 5 min. The content of the tubes is combined and filtered on Clarcel. The Clarcel is washed with methanol and the filtrate is concentrated under vacuum. The residue is taken up with 20 ml of ethyl acetate, 2 ml of water and 8 ml of a saturated sodium chloride solution. The aqueous phase is extracted three times with 10 ml of ethyl acetate. The combined organic phases are washed with 10 ml of a saturated aqueous sodium chloride solution, dried over magnesium sulfate and concentrated under vacuum, so as to obtain 1.053 g of 5-methyl-4-(4-methylpiperazin-1-yl)-2-(propan-2-yloxy)aniline in the form of a light brown solid.

1. filtrationfiltered on Clarcel
2. washThe Clarcel is washed with methanol
3. concentrationthe filtrate is concentrated under vacuum
4. extractionThe aqueous phase is extracted three times with 10 ml of ethyl acetate
5. washThe combined organic phases are washed with 10 ml of a saturated aqueous sodium chloride solution
6. dry with materialdried over magnesium sulfate
7. concentrationconcentrated under vacuum