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Dichloromethane → Foramsulfuron

HRID 1006581
Notes
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Reaction equation

HRID 1006581 reaction equation
[CH3:1][O:2][C:3]1[CH:8]=[C:7]([O:9][CH3:10])[N:6]=[C:5]([NH:11][C:12]([NH:14][S:15]([C:18]2[CH:23]=[C:22]([NH2:24])[CH:21]=[CH:20][C:19]=2[C:25]([N:27]([CH3:29])[CH3:28])=[O:26])(=[O:17])=[O:16])=[O:13])[N:4]=1.ClCCl.[C:33](OC(=O)C)(=[O:35])C>C(O)=O>[CH3:1][O:2][C:3]1[CH:8]=[C:7]([O:9][CH3:10])[N:6]=[C:5]([NH:11][C:12]([NH:14][S:15]([C:18]2[CH:23]=[C:22]([NH:24][CH:33]=[O:35])[CH:21]=[CH:20][C:19]=2[C:25]([N:27]([CH3:29])[CH3:28])=[O:26])(=[O:17])=[O:16])=[O:13])[N:4]=1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 3

HCID 6344DichloromethaneHCID 7918Acetic AnhydrideHCID 108627955-amino-N-[(4,6-dimethoxypyrimidin-2-yl)aminocarbonyl]-2-dimethylaminocarbonylbenzenesulfonamide

Product 1

HCID 11419598Foramsulfuron

Reagents, catalysts & solvents 1

HCID 284Formic AcidSolvent

Procedure

A solution of 1.9 g of N-[(4,6-dimethoxypyrimidin-2-yl)aminocarbonyl]-5-amino-2-dimethylaminocarbonylbenzenesulfonamide and 10 ml of dichloromethane is added dropwise to the mixed anhydride, prepared in situ from 0.5 ml of formic acid and 1.0 ml of acetic anhydride in accordance with standard methods. After the end of reaction, the reaction mixture is concentrated and the residue is washed with water and ethyl acetate, to give 1.8 g of desired product; purity>92% (HPLC).

Workup

  1. customAfter the end of reaction
  2. concentrationthe reaction mixture is concentrated
  3. washthe residue is washed with water and ethyl acetate

Sources & evidence

ORD record
ord-a6325c7e5827448ba92c2c0589557295
Source dataset
uspto-grants-2004_09
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US06790955B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes