反应详情

A solution of 60 ml of benzene, 5.0 g (30.9 mmole) of 2,6-dichloroaniline, 10.6 ml (76.0 mmole) of triethylamine, and 8.08 ml (61.1 mmole) of trimethylsilyl bromide was heated at reflux for 54 hours, cooled, filtered, and the solvent was removed from the filtrate in vacuo. The residue was evacuated at 1 mm to remove any excess trimethylsilyl bromide. The residual mixture was filtered into a round-bottomed flask and distilled using a short Vigreaux column to provide 5.43 g (23.2 mmole, 75.0 percent yield) of the N-trimethylsilyl-2,6-dichloroaniline as a 97 percent pure amber oil, bp 74° C.-75° C. at 0.4 mm.

1. temperatureat reflux for 54 hours
2. temperaturecooled
3. filtrationfiltered
4. customthe solvent was removed from the filtrate in vacuo
5. customThe residue was evacuated at 1 mm
6. customto remove any excess trimethylsilyl bromide
7. filtrationThe residual mixture was filtered into a round-bottomed flask
8. distillationdistilled