N-bromosuccinmide in tetrahydrofuran

N-bromosuccinmide; trifluoroacetic acid in tetrahydrofuran T=-78 - -10°C; Product distribution; Further Variations:Reagents;

bromine; magnesium oxide in tetrachloromethane T=0°C; 0.5 h; Product distribution;

trifluoroacetic acid in tetrachloromethane 2 h; similar acid-catalyzed isomerisation of 2-bromo-1-benzylpyrrole was also investigated; Product distribution;

1: 3-bromo-1-methyl-1H-pyrrole With n-butyllithium; N,N,N',N,-tetramethylethylenediamine in tetrahydrofuran; hexane T=-78°C; 1 h; 2: chloro-trimethyl-silane in tetrahydrofuran; hexane T=20°C; 4 h;