反应详情

EX-8B) To a solution of 3-(4-chloro-3-ethylphenoxy)-1-nitrobenzene (10 g, 0.036 mol) from EX-A in 400 mL of glacial acetic acid and 1 mL of water was added zinc metal (20 g, 0.305 mol) at room temperature, and the resultant mixture was stirred for 1 h. The reaction mixture was filtered through celite. The filtrate was neutralized with ammonium hydroxide and extracted with diethyl ether. The organic layer was washed with water and brine, dried over MgSO4, and concentrated in vacuo to give 10 g (100%) of the desired 3-(4-chloro-3-ethylphenoxy)aniline product as a dark orange oil, which was greater than 90% pure by reverse phase HPLC analysis. HRMS calcd. for C14H14ClNO: 248.0842 [M+H]+, found: 248.0833.

1. filtrationThe reaction mixture was filtered through celite
2. extractionextracted with diethyl ether
3. washThe organic layer was washed with water and brine
4. dry with materialdried over MgSO4
5. concentrationconcentrated in vacuo