反应详情

To a stirred suspension of chloramine B (CAS [127-52-6], 2.97 g), iodine (0.353 g) and trioctylmethylammoniumchloride (Aliquat 336, 0.562 g) in water (40 mL) under argon was added 3-bromostyrene (5.09 g). The mixture was stirred for 2 h at room temperature and subsequently extracted with ethyl acetate. The org. phase was washed with water, dried (MgSO4), filtered and concentrated. The product was purified using column chromatography (SiO2, cyclohexane/ethyl acetate 1:0=>4:1) to give 1-benzenesulfonyl-2-(3-bromo-phenyl)-aziridine (3.18 g) as a light brown oil.

1. extractionsubsequently extracted with ethyl acetate
2. washphase was washed with water
3. dry with materialdried (MgSO4)
4. filtrationfiltered
5. concentrationconcentrated
6. customThe product was purified