Methanol → 7-(4-((3,4-dichlorophenyl)carbamoyl)phenoxy)-6-cyano-3,4-dihydro-2H-chromene-4-carboxylic acid

HRID 1021381Notes

Reaction equation

HRID 1021381 reaction equation
[Cl:1][C:2]1[CH:3]=[C:4]([NH:9][C:10]([C:12]2[CH:34]=[CH:33][C:15]([O:16][C:17]3[CH:26]=[C:25]4[C:20]([CH:21]([C:27]([O:29]C)=[O:28])[CH2:22][CH2:23][O:24]4)=[CH:19][C:18]=3[C:31]#[N:32])=[CH:14][CH:13]=2)=[O:11])[CH:5]=[CH:6][C:7]=1[Cl:8].[OH-].[Na+].O.CO>C1COCC1.Cl.C(OCC)(=O)C>[Cl:1][C:2]1[CH:3]=[C:4]([NH:9][C:10]([C:12]2[CH:34]=[CH:33][C:15]([O:16][C:17]3[CH:26]=[C:25]4[C:20]([CH:21]([C:27]([OH:29])=[O:28])[CH2:22][CH2:23][O:24]4)=[CH:19][C:18]=3[C:31]#[N:32])=[CH:14][CH:13]=2)=[O:11])[CH:5]=[CH:6][C:7]=1[Cl:8]

Participants

8

Reactant 4

HCID 887MethanolHCID 962WaterHCID 14798Sodium HydroxideHCID 67080311methyl 7-(4-((3,4-dichlorophenyl)carbamoyl)phenoxy)-6-cyano-3,4-dihydro-2H-chromene-4-carboxylate

Product 1

HCID 445991057-(4-((3,4-dichlorophenyl)carbamoyl)phenoxy)-6-cyano-3,4-dihydro-2H-chromene-4-carboxylic acidYield 61%

Reagents, catalysts & solvents 3

HCID 313Hydrochloric AcidSolventHCID 8028TetrahydrofuranSolventHCID 8857Ethyl AcetateSolvent

Procedure

Methyl 7-(4-((3,4-dichlorophenyl) carbamoyl)phenoxy)-6-cyano-3,4-dihydro-2H-chromene-4-carboxylate (17 mg, 0.034 mmol) was diluted with THF (500 μL) followed by the addition of NaOH (0.041 mL, 0.21 mmol), water (200 μL) and methanol (200 μL). After stirring for 2 hours, the reaction was diluted with 2N HCl and ethyl acetate. The layers were separated and the organic layer was dried over MgSO4, filtered and concentrated to yield the title compound (10 mg, 61% yield). 1H NMR (400 MHz, CD3OD) δ 8.1 (d, 1H), 8.0 (d, 2H), 7.70 (s, 1H), 7.62 (dd, 1H), 7.48 (d, 1H), 7.20 (d, 2H), 6.41 (s, 1H), 4.2-4.35 (m, 2H), 3.82 (bt, 1H), 2.35-2.40 (m, 1H), 2.10-2.15 (m, 1H).

Workup

  1. customThe layers were separated
  2. dry with materialthe organic layer was dried over MgSO4
  3. filtrationfiltered
  4. concentrationconcentrated

Sources & evidence

ORD record
ord-0f9e47d1634e4a01a7decf2ebc1f812e
Source dataset
uspto-grants-2014_05
Patent number
US08716498B2

Reaction notes

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