2,2,6,6-tetramethylpiperidinyl-lithium; bromine; mercury dichloride 1.) THF, hexane, 0 deg C, 20 min, 2.) 0 deg C, 3 h; Yield given. Multistep reaction;

2,2,6,6-tetramethylpiperidinyl-lithium; bromine; mercury dichloride 1.) THF, hexane, 0 deg C, 1 h, 2.) 0 deg C, 2h; Yield given. Multistep reaction. Yields of byproduct given;

1: With sec.-butyllithium in tetrahydrofuran; hexane; cyclohexane T=-58°C; 0.000105556 h; 2: With isopropyl alcohol in tetrahydrofuran; hexane; cyclohexane T=-58°C; 0.000638889 h;

1: isopropyl o-bromobenzoate With N,N'-dimethyl-N,N'-propyleneurea; isopropylmagnesium chloride lithium chloride complex in tetrahydrofuran T=-10°C; 3 h; 2: benzaldehyde With N,N'-dimethyl-N,N'-propyleneurea in tetrahydrofuran T=20°C; Grignard reaction; 1 h;

1: isopropyl o-bromobenzoate With sec.-butyllithium in tetrahydrofuran; hexane; cyclohexane T=-28°C; 2: methyl trifluoromethanesulfonate in tetrahydrofuran; hexane; cyclohexane T=-28°C;

1: isopropyl o-bromobenzoate With sec.-butyllithium in tetrahydrofuran; hexane; cyclohexane T=-28°C; 2: methyl iodide in tetrahydrofuran; hexane; cyclohexane T=-28°C;