Methyl 3-bromo-4-methylbenzoate
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Methyl 3-bromo-4-methylbenzoate
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CAS No:
104901-43-1
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Formula:
C9H9BrO2
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Chemical Name:
Methyl 3-bromo-4-methylbenzoate
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Synonyms:
Benzoic acid,3-bromo-4-methyl-,methyl ester;Methyl 3-bromo-4-methylbenzoate;3-Bromo-4-methylbenzoic acid methyl ester;4-Methyl-3-bromobenzoic acid methyl ester;3-Bromo-4-methylbenzenecarboxylic acid methyl ester
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CAS No:
Characteristics
26.3
2.54410
1.433±0.06 g/cm3(Predicted)
38-44 °C(lit.)
125-130 °C @ Press: 0.1 Torr
>230 °F
1.5570 to 1.5610
Soluble in dimethyl sulfoxide.
Room temperature.
0.00844mmHg at 25°C
Methyl 3-bromo-4-methylbenzoate Use and Manufacturing
Preparation 38 Intermediate 15: 3-Bromo-4-(tert-butoxycarbonylamino-methyl)-benzoic acidTo a suspension of 3-Bromo-4-methylbenzoic acid (300 g, 1 .39 mol) in MeOH (3 L) was added HTo a suspension of 3-bromo-4-methylbenzoic acid 2 (300 g, 1.39 mol) in MeOH (3 L) was added H[0343] Ex-32C: In a 500 mL round-bottom flask 3-bromo-4-methyl-benzoic acid (25.0 g, 116.3 mmol), was combined with MeOH (250 mL) and H2SO4 (0.5 mL) was added. The resulting solution was heated to 60 0C and aged overnight. The reaction was cooled to room temperature, concentrated to 1/5 the volume, diluted with EtOAc and saturated NaHCO3 and the layers were cut. The organic layer was washed with H2O, dried with MgSO4 and concentrated to dryness. The crude was purified by crystallization from EtOAc and hexanes to provide 24.8 g (93percent) of 3-bromo-4-methyl-benzoic acid methyl ester. 1H-NMR (CDCl3) δ 8.18 (d, J= 2.1 Hz, IH), 7.85 (dd, J = 8.1, 1.9 Hz, IH), 7.28 (d, J= 8.1 Hz, IH), 3.90 (s, 3H), 2.44 (s, 3H).A
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