Methanol → (3-Methoxypyridin-2-yl)methanol

HRID 2083041Notes

Reaction equation

HRID 2083041 reaction equation
[BH4-].[Na+].[CH3:3][O:4][C:5]1[C:6]([C:11](OC)=[O:12])=[N:7][CH:8]=[CH:9][CH:10]=1.CO>C(O)C>[OH:12][CH2:11][C:6]1[C:5]([O:4][CH3:3])=[CH:10][CH:9]=[CH:8][N:7]=1

Participants

5

Reactant 3

HCID 887MethanolHCID 4311764Sodium borohydride2×HCID 20474189Methyl 3-methoxypyridine-2-carboxylate

Product 1

HCID 5324774(3-Methoxypyridin-2-yl)methanolYield 57.5%

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent

Procedure

Sodium borohydride (6.3 g) was added slowly over 75 minutes to a solution of 3-methoxy-2-methoxycarbonylpyridine (9.2 g) in ethanol. Methanol (100 ml) was then added and after the initial vigorous reaction had subsided, further sodium borohydride (8.3 g) was added over a further 3 hours, and the mixture was left to stand overnight. The solvent was evaporated, the residue dissolved in water and extracted with chloroform and the chloroform solution dried. Evaporation, and crystallisation from ether gave 2-hydroxymethyl-3-methoxypyridine (4.4 g) m.p. 72.5°-73.5°.

Workup

  1. customafter the initial vigorous reaction
  2. waitthe mixture was left
  3. customThe solvent was evaporated
  4. dissolutionthe residue dissolved in water
  5. extractionextracted with chloroform
  6. dry with materialthe chloroform solution dried
  7. customEvaporation, and crystallisation from ether

Sources & evidence

ORD record
ord-2e2ef4f74ce446f3ac390e5a7f7530e1
Source dataset
uspto-grants-1978_04
Patent number
US04083983

Reaction notes

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