p-Toluenesulfonic acid → HCID 46840741, compound

HRID 1846286Notes

Reaction equation

HRID 1846286 reaction equation
[OH:1][CH2:2][CH2:3][O:4][C:5]1[C:12]([CH3:13])=[CH:11][C:8]([CH:9]=O)=[CH:7][C:6]=1[CH3:14].[NH2:15][C:16]1[CH:31]=[CH:30][CH:29]=[CH:28][C:17]=1[C:18]([NH:20][C:21]1[CH:26]=[CH:25][C:24]([Cl:27])=[CH:23][CH:22]=1)=[O:19].S([O-])(O)=O.[Na+].C1(C)C=CC(S(O)(=O)=O)=CC=1>CN(C)C(=O)C.O>[Cl:27][C:24]1[CH:25]=[CH:26][C:21]([N:20]2[C:18](=[O:19])[C:17]3[C:16](=[CH:31][CH:30]=[CH:29][CH:28]=3)[N:15]=[C:9]2[C:8]2[CH:11]=[C:12]([CH3:13])[C:5]([O:4][CH2:3][CH2:2][OH:1])=[C:6]([CH3:14])[CH:7]=2)=[CH:22][CH:23]=1

Participants

7

Reactant 4

HCID 6101p-Toluenesulfonic acidHCID 6704722-amino-N-(4-chlorophenyl)benzamideHCID 23665763Sodium BisulfiteHCID 289325784-(2-Hydroxyethoxy)-3,5-dimethylbenzaldehyde

Product 1

HCID 46840741HCID 46840741, compound

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 31374DimethylacetamideSolvent

Conditions

Temperature
155 °C

Procedure

To a mixture of 4-(2-hydroxyethoxy)-3,5-dimethyl-benzaldehyde (0.420 g, 2.17 mmol) and 2-amino-N-(4-chloro-phenyl)-benzamide (0.500 g, 2.17 mmol) in N,N-dimethylacetamide (5 mL) was added sodium hydrogensulfite (0.350 g, 3.26 mmol) and p-toluenesulfonic acid (0.21 g, 0.11 mmol). The reaction mixture was heated at 155° C. for 14 hours, cooled to room temperature, and diluted with cold water (20 mL), to produce the precipitate. The yellow solid was filtered, washed with cold water, then methanol, and dried under vacuum to provide crude product, which was purified by preparative HPLC (0.1% TFA in CH3CN/H2O as eluent) to give the title compound as a white solid. Yield: 0.23 g (14%). MP 101-103° C. 1H-NMR (400 MHz, CDCl3): δ 8.38 (d, 1H), 7.81-7.78 (m, 2H), 7.59-7.51 (m, 1H), 7.31-7.20 (m, 2H), 7.15-7.12 (m, 2H), 7.01-6.98 (d, 2H), 3.98-3.80 (m, 4H), 2.20 (s, 6H), 2.01 (t, 1H). MS (ES+) m/z: 421.05 (M+1).

Workup

  1. temperaturecooled to room temperature
  2. customto produce the precipitate
  3. filtrationThe yellow solid was filtered
  4. washwashed with cold water
  5. dry with materialmethanol, and dried under vacuum
  6. customto provide crude product, which
  7. customwas purified by preparative HPLC (0.1% TFA in CH3CN/H2O as eluent)

Sources & evidence

ORD record
ord-98a243a432e041f793b5dbf2d0f1f90b
Source dataset
uspto-grants-2015_02
Patent number
US08952021B2

Reaction notes

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