HCID 13752505, compound → HCID 13752506, compound

HRID 1906093Notes

Reaction equation

HRID 1906093 reaction equation
[O:1]1[C:9]2[C:4](=[N:5][C:6]([C:13]([OH:15])=[O:14])=[C:7]([C:10]([OH:12])=O)[CH:8]=2)[CH:3]=[CH:2]1>C(OC(=O)C)(=O)C>[O:1]1[C:9]2[C:4](=[N:5][C:6]3[C:13](=[O:14])[O:15][C:10](=[O:12])[C:7]=3[CH:8]=2)[CH:3]=[CH:2]1

Participants

3

Reactant 1

HCID 13752505HCID 13752505, compound

Product 1

HCID 13752506HCID 13752506, compound

Reagents, catalysts & solvents 1

HCID 7918Acetic AnhydrideSolvent

Procedure

Furo[3,2-b]pyridine-5,6-dicarboxylic acid (3.3 g, 0.0159 mol) in acetic anhydride (100 mL) is heated to 70°-80° C. for six hours. The reaction mixture is cooled, filtered and the solid is washed with ether to give 3.01 (100%) of crude furo[3,2-b]pyridine-5,6-dicarboxylic acid anhydride.

Workup

  1. temperatureThe reaction mixture is cooled
  2. filtrationfiltered
  3. washthe solid is washed with ether

Sources & evidence

ORD record
ord-e1afd4093c1242d89825e82c67261b41
Source dataset
uspto-grants-1987_03
Patent number
US04650514

Reaction notes

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