Ethanol → N-hydroxy-2-[[4-methoxybenzenesulfonyl](benzyl)amino]-2-[(2-methyl-5-tetrazolyl)methyl]acetamide

HRID 1720618Notes

Reaction equation

HRID 1720618 reaction equation
C([O:5][NH:6][C:7](=[O:35])[CH:8]([N:16]([S:24]([C:27]1[CH:32]=[CH:31][C:30]([O:33][CH3:34])=[CH:29][CH:28]=1)(=[O:26])=[O:25])[CH2:17][C:18]1[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=1)[CH2:9][C:10]1[N:11]=[N:12][N:13]([CH3:15])[N:14]=1)(C)(C)C.C(O)C>C(Cl)Cl>[OH:5][NH:6][C:7](=[O:35])[CH:8]([N:16]([S:24]([C:27]1[CH:32]=[CH:31][C:30]([O:33][CH3:34])=[CH:29][CH:28]=1)(=[O:26])=[O:25])[CH2:17][C:18]1[CH:19]=[CH:20][CH:21]=[CH:22][CH:23]=1)[CH2:9][C:10]1[N:11]=[N:12][N:13]([CH3:15])[N:14]=1

Participants

4

Reactant 2

HCID 702EthanolHCID 22907048N-(t-butyloxy)-2-[[4-methoxybenzenesulfonyl](benzyl)amino]-2-[(2-methyl-5-tetrazolyl)methyl]acetamide

Product 1

HCID 22907172N-hydroxy-2-[[4-methoxybenzenesulfonyl](benzyl)amino]-2-[(2-methyl-5-tetrazolyl)methyl]acetamide

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Conditions

Temperature
0 °C

Procedure

N-(t-butyloxy)-2-[[4-methoxybenzenesulfonyl](benzyl)amino]-2-[(2-methyl-5-tetrazolyl)methyl]acetamide (0.77 g, 1.55 mmol) is dissolved in methylene chloride (2.0 mL) and ethanol (0.1 mL) in a glass sealed tube, and the reaction is cooled to 0° C. Hydrochloric acid gas (from a lecture bottle) is bubbled through the solution for 20 minutes, and then the tube is sealed at room temperature for 3 days. After that time, the solvent is removed, and the reaction is partitioned between ethyl acetate and saturated sodium bicarbonate. The organic phase is dried (Na2SO4), and the solvent is evaporated. The product is purified by silica gel chromatography (2% methanol/methylene chloride) to give N-hydroxy-2-[[4-methoxybenzenesulfonyl](benzyl)amino]-2-[(2-methyl-5-tetrazolyl)methyl]acetamide, m.p. 72°-75° C.

Workup

  1. customHydrochloric acid gas (from a lecture bottle) is bubbled through the solution for 20 minutes
  2. customthe tube is sealed at room temperature for 3 days
  3. customAfter that time, the solvent is removed
  4. customthe reaction is partitioned between ethyl acetate and saturated sodium bicarbonate
  5. dry with materialThe organic phase is dried (Na2SO4)
  6. customthe solvent is evaporated
  7. customThe product is purified by silica gel chromatography (2% methanol/methylene chloride)

Sources & evidence

ORD record
ord-d6ad5abec7804bb5b37cf47cb801c16d
Source dataset
uspto-grants-1996_04
Patent number
US05506242

Reaction notes

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