Sodium Carbonate → Methyl benzimidate

HRID 2229381Notes

Reaction equation

HRID 2229381 reaction equation
Cl.[CH3:2][O:3][C:4](=[NH:11])[C:5]1[CH:10]=[CH:9][CH:8]=[CH:7][CH:6]=1.C(=O)([O-])[O-].[Na+].[Na+]>C(OCC)C>[CH3:2][O:3][C:4](=[NH:11])[C:5]1[CH:10]=[CH:9][CH:8]=[CH:7][CH:6]=1

Participants

4

Reactant 2

HCID 10340Sodium CarbonateHCID 5743287Methyl benzimidate hydrochloride

Product 1

HCID 345018Methyl benzimidateYield 81.4%

Reagents, catalysts & solvents 1

HCID 3283Diethyl EtherSolvent

Procedure

Benzimidic acid methyl ester hydrochloride (5 g, 29.1 mmol) was partitioned between saturated sodium carbonate solution (200 mL) and diethyl ether (I100 mL). The organic layer was dried (MgSO4) and concentrated to provide the desired product as a colorless liquid (3.20 g, 81%). This material was used without further purification. 1H NMR (400 MHz, CDCl3) δ 3.93 (s, 3H), 7.39-7.46 (m, 3H), 7.75 (d, J=1.1 Hz, 2H).

Workup

  1. dry with materialThe organic layer was dried (MgSO4)
  2. concentrationconcentrated

Sources & evidence

ORD record
ord-4ac2fc2d596541f693881877979da5b2
Source dataset
uspto-grants-2002_07
Patent number
US06420364B1

Reaction notes

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