反应详情

The 2-bromo-4-[3-(4-fluorophenoxy)phenyl]-3-butyne prepared in step 2 was taken up in N-methyl-2-pyrollidinone (27 kg) and 50% aqueous hydroxylamine (21 kg) was added. The reaction mixture was agitated for 2.5 hours at ambient temperature and then was diluted with distilled water (18 kg). The layers were separated and the organic phase was concentrated in vacuo to give N-[4-(3-(4-fluorophenoxy)phenyl)-3-butyn-2-yl]hydroxylamine.

1. customThe layers were separated
2. concentrationthe organic phase was concentrated in vacuo