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ChemicalBook CAS DataBase List 5-BROMO-4,6-DIMETHYLNICOTINIC ACID
93350-01-7

5-BROMO-4,6-DIMETHYLNICOTINIC ACID synthesis

3synthesis methods
-

Yield:93350-01-7 79%

Reaction Conditions:

with water;potassium hydroxide at 110; for 16 h;

Steps:

36.D Step D: 5-bromo-4,6-dimethylnicotinic acid

To a mixture of 5-bromo-4,6-dimethylnicotinonitrile (10 g, 47.4 mmol) in water (20 mL) was added KOH (26.6 g, 47.4 mmol). The reaction was stirred at about 110 °C for about 16 h. The reaction mixture was then cooled to ambient temperature and was neutralized by the addition of concentrated HC1. The resulting solid was filtered to provide 5-bromo-4,6-dimethylnicotinic acid (9 g, 79 %). LCMS (Table 1 , Method e) RT= 1.61 min.; MS m/z = 232, 233 (M+H).

References:

WO2016/198908,2016,A1 Location in patent:Page/Page column 77

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