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ChemicalBook CAS DataBase List Methyl 6-(hydroxymethyl)nicotinate
56026-36-9

Methyl 6-(hydroxymethyl)nicotinate synthesis

5synthesis methods
DIMETHYL PYRIDINE-2,5-DICARBOXYLATE

881-86-7

Methyl 6-(hydroxymethyl)nicotinate

56026-36-9

Step 1. Synthesis of methyl 6-(hydroxymethyl)nicotinate (55): a mixture of methyl 2,5-pyridinedicarboxylate (54; 100.0 g, 0.51 mol), CaCl2 (227.4 g, 2.05 mol), and THF (1100 mL) was mixed with EtOH (1200 mL), and stirred for 30 min. NaBH4 (48.6 g, 1.28 mol) was added in batches at 0 °C. The reaction mixture was stirred at room temperature for 18 hours. Subsequently, saturated NH4Cl solution (1.5 L) and water (2.0 L) were added slowly and extracted with dichloromethane (3 x 3.0 L). The organic phases were combined, dried with MgSO4 and concentrated under reduced pressure to give methyl 6-(hydroxymethyl)nicotinate 55 (82.0 g, 96% yield).

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Yield:56026-36-9 96%

Reaction Conditions:

Stage #1:dimethyl 2,5-pyridine dicarboxylate with calcium chloride in tetrahydrofuran;ethanol for 0.5 h;
Stage #2: with sodium tetrahydroborate;ethanol in tetrahydrofuran at 0;

Steps:

10.1
Step 1. Synthesis of methyl 6-(hydroxymethyl)nicotinate (55):A mixture of dimethyl pyridine-2,5-dicarboxylate (54; 100.0 g, 0.51 mol), CaCl2 (227.4 g, 2.05 mol), THF (1100 mL) and EtOH (1200 mL) was stirred for 30 min, NaBH4 (48.6 g, 1.28 mol) was added portionwise at 0ºC. The mixture was stirred for 18 hours. Saturated NH4Cl solution (1.5 L) and water (2.0L) was added slowly, and the resulting mixture was extracted with dichloromethane (3 x 3.0 L). The combined organic solvent was dried over MgSO4 and concentrated to give methyl 6- (hydroxymethyl)nicotinate 55 (82.0 g, 96%).

References:

SIRTRIS PHARMACEUTICALS, INC.;NARAYAN, Radha;DISCH, Jeremy, S.;PERNI, Robert, B.;VU, Chi, B. WO2010/56549, 2010, A1 Location in patent:Page/Page column 103

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