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ChemicalBook CAS DataBase List Methyl 2-chloro-6-methylpyridine-4-carboxylate
3998-90-1

Methyl 2-chloro-6-methylpyridine-4-carboxylate synthesis

10synthesis methods
-

Yield:3998-90-1 100%

Reaction Conditions:

in methanol;dichloromethane

Steps:

63 Example 63
The starting material was prepared as follows: Oxalyl chloride (1.9 g, 15 mmol) was added to 2-chloro-6-methyl-pyridine4-carboxylic acid (1.7 g, 10 mmol) in methylene chloride (30 ml) and the mixture stirred for 2 hours. The volatiles were removed by evaporation and methanol (20 ml) added to the residue. The mixture was stirred for 1 hour and the volatiles removed by evaporation to give methyl 2-chloro-6-methyl-pyridine-4-carboxylate (1.85 g, 100%) as an off-white solid. 1 H NMR Spectrum: (CDCl3) 2.55(s, 3H); 3.90(s, 3H); 7.55(s, 1H); 7.60(s, 1H); MS - ESI: 186 [MH]+

References:

Zeneca Limited;Zeneca Pharma S.A., US5962458, 1999, A

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