Methanol → 2-Pyridinecarboxylicacid,5-amino-6-methyl-,methylester(9CI)

Participants

Reaction Conditions

Reaction Steps

To a solution of 5-amino-6-methylpicolinic acid (31D, 240 mg, 1.5 mmol) in methanol was added conc. H2SO4. The solution was stirred at 60° C. overnight, when LC-MS showed that s.m. was consumed. Then the mixture was concentrated and neutralized with Na2CO3 solution to pH=7. The mixture was extracted with DCM (10 mL×3). The organic layer was dried and concentrated to give the title compound 31E. LC-MS: m/z 167 (M+H)+

Provenance & Evidence