References
- Streitweiser , A. Jr. , Lawler , R. G. and Schwaab , D. 1965 . J. Org. Chem. , 30 : 1470
- Lee , H. and Harvey , R. G. 1986 . J. Org. Chem. , 51 : 2847
- Apparently bromination continues in the aqueous medium. However reaction of 2a with one equivalent of Br2 in water was previously reported to afford a mixture of the mono and dibromo compounds along with unreacted 2a.2 It appears that dimethylformamide tends to retard further brominauon of 2b in aqueous media.