Hydrochloric Acid → HCID 178484916, compound

HRID 1636498Notes

Reaction equation

HRID 1636498 reaction equation
[C:1]([C:3]1[CH:4]=[C:5]([CH2:9][O:10][C:11]2[CH:12]=[C:13]([O:18][S:19]([C:22]3[CH:27]=[CH:26][CH:25]=[CH:24][C:23]=3[Cl:28])(=[O:21])=[O:20])[CH:14]=[C:15]([CH3:17])[CH:16]=2)[CH:6]=[CH:7][CH:8]=1)#[N:2].[ClH:29].Cl.[CH3:31][NH2:32].C([O-])([O-])=O.[Na+].[Na+]>C(Cl)Cl.C(O)C>[ClH:28].[CH3:31][NH:32][C:1]([C:3]1[CH:4]=[C:5]([CH2:9][O:10][C:11]2[CH:12]=[C:13]([O:18][S:19]([C:22]3[CH:27]=[CH:26][CH:25]=[CH:24][C:23]=3[Cl:29])(=[O:21])=[O:20])[CH:14]=[C:15]([CH3:17])[CH:16]=2)[CH:6]=[CH:7][CH:8]=1)=[NH:2]

Participants

7

Reactant 4

HCID 313Hydrochloric AcidHCID 10340Sodium CarbonateHCID 6364545Methylamine hydrochlorideHCID 540597372-Chlorobenzenesulfonic acid 3-[(3-cyanophenyl)methoxy]-5-methylphenyl ester

Product 1

HCID 178484916HCID 178484916, compoundYield 30%

Reagents, catalysts & solvents 2

HCID 702EthanolSolventHCID 6344DichloromethaneSolvent

Procedure

To a solution of 2-chlorobenzenesulfonic acid 3-[(3-cyanophenyl)methoxy]-5-methylphenyl ester (414 mg, 1.0 mmol), as prepared in step (a) of Example 6, in methylene chloride (10 mL) was added 37% HCl in ethanol (15 mL) at 0° C. The mixture was allowed to stand at 0° C. for 3 days. The solvent was evaporated and the residue was concentrated in vacuo from methylene chloride several times. The residue was dissolved in ethanol (10 mL), treated with methylamine hydrochloride (270 mg, 4.0 mmol) and Na2CO3 (212 mg, 2.0 mmol), and then stirred at room temperature for 2 days. The reaction mixture was partitioned between metiylene chloride (150 mL) and 10% K2CO3. The organic phase was washed with 10% K2CO3 (50 mL) and dried over K2CO3. After removing the solvent in vacuo, HCl in methanol (30 mL) was added and the solvent was removed in vacuo. The residue was then purified by flash column chromatography (10% methanol/methylene chloride) and crystallized from methanol/ethyl acetate to give the title compound as white crystals (145 mg, 30%). 1H-NMR (300 MHz, DMSO-d6) δ 2.22 (s, 3H), 3.01 (s, 3H), 5.10 (s, 2 H), 6.53 (s, 1H), 6.56 (s, 1H), 6.87 (s, 1H), 7.58 (t, 1H, J=7.0 Hz), 7.63 (t, 1 H, J=7.6 Hz), 7.73 (m, 2H), 7.86 (m, 3H), 7.94 (d, 1H, J=4.0 Hz), 9.05 (br s, 1H), 9.55 (br s, 1H), and 9.94 (br s, 1H). Mass spectrum (MALDI-TOF, sinapinic acid matrix) calcd. for C22H21N2O4SCl: 445.1 (M+H). Found: 445.0.

Workup

  1. customThe solvent was evaporated
  2. concentrationthe residue was concentrated in vacuo from methylene chloride several times
  3. dissolutionThe residue was dissolved in ethanol (10 mL)
  4. customThe reaction mixture was partitioned between metiylene chloride (150 mL) and 10% K2CO3
  5. washThe organic phase was washed with 10% K2CO3 (50 mL)
  6. dry with materialdried over K2CO3
  7. customAfter removing the solvent in vacuo, HCl in methanol (30 mL)
  8. additionwas added
  9. customthe solvent was removed in vacuo
  10. customThe residue was then purified by flash column chromatography (10% methanol/methylene chloride)
  11. customcrystallized from methanol/ethyl acetate

Sources & evidence

ORD record
ord-f02e70561a5c43529815f1834e3b74e5
Source dataset
uspto-grants-2000_03
Patent number
US06034127

Reaction notes

Loading…