methyl 4-bromo-5-fluoro-2-hydroxybenzoate

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: Preparation according to Preparation 21, using methyl 4-bromo-5-fluoro-2-hydroxybenzoate (2.1 g, 8.4 mmol), borane tetrahydrofuran complex (31.0 ml, 31.0 mmol) and dry THF. Yield: 3.3 g (not pure). ESIMS: m/z 221 (M+H)+, 219 (M+H)+. Preparation according to Preparation 21

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: Preparation according to Preparation 21, using methyl 4-bromo-5-fluoro-2-hydroxybenzoate (2.1 g, 8.4 mmol), borane tetrahydrofuran complex (31.0 ml, 31.0 mmol) and dry THF. Yield: 3.3 g (not pure). ESIMS: m/z 221 (M+H)+, 219 (M+H)+. Preparation according to Preparation 21

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: Preparation according to Preparation 7, using boron tribromide (1.0 M, 25.0 ml, 25.2 mmol) in DCM (25 ml) and methyl 4-bromo-5-fluoro-2-methoxybenzoate (2.2 g, 8.4 mmol) in DCM (15 ml). Yield: 2.1 g. MS m/z (rel. intensity, 70 eV) 250 (M+, 40), 248 (M+, 41), 218 (99), 216 (bp), 188 (41), 186 (41), 81 (39). Preparation according to Preparation 7

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: Preparation according to Preparation 21, using methyl 4-bromo-5-fluoro-2-hydroxybenzoate (2.1 g, 8.4 mmol), borane tetrahydrofuran complex (31.0 ml, 31.0 mmol) and dry THF. Yield: 3.3 g (not pure). ESIMS: m/z 221 (M+H)+, 219 (M+H)+. Preparation according to Preparation 21

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: Preparation according to Preparation 7, using boron tribromide (1.0 M, 25.0 ml, 25.2 mmol) in DCM (25 ml) and methyl 4-bromo-5-fluoro-2-methoxybenzoate (2.2 g, 8.4 mmol) in DCM (15 ml). Yield: 2.1 g. MS m/z (rel. intensity, 70 eV) 250 (M+, 40), 248 (M+, 41), 218 (99), 216 (bp), 188 (41), 186 (41), 81 (39). Preparation according to Preparation 7