4-Isopropylaniline → N-(4-isopropylphenyl)-7-methoxy-1,2,3,4-tetrahydronaphthalene-1-carboxamide

HRID 218547Notes

Reaction equation

HRID 218547 reaction equation
[CH3:1][O:2][C:3]1[CH:12]=[C:11]2[C:6]([CH2:7][CH2:8][CH2:9][CH:10]2[C:13]([OH:15])=O)=[CH:5][CH:4]=1.[CH:16]([C:19]1[CH:25]=[CH:24][C:22]([NH2:23])=[CH:21][CH:20]=1)([CH3:18])[CH3:17].C1C=CC2N(O)N=NC=2C=1.CCN=C=NCCCN(C)C.Cl>CN(C=O)C.O.C(N(CC)CC)C>[CH:16]([C:19]1[CH:25]=[CH:24][C:22]([NH:23][C:13]([CH:10]2[C:11]3[C:6](=[CH:5][CH:4]=[C:3]([O:2][CH3:1])[CH:12]=3)[CH2:7][CH2:8][CH2:9]2)=[O:15])=[CH:21][CH:20]=1)([CH3:18])[CH3:17]

Participants

8

Reactant 4

HCID 74644-IsopropylanilineHCID 757711-HydroxybenzotriazoleHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 132774847-Methoxy-1,2,3,4-tetrahydronaphthalene-1-carboxylic acid

Product 1

HCID 17854209N-(4-isopropylphenyl)-7-methoxy-1,2,3,4-tetrahydronaphthalene-1-carboxamideYield 72%

Reagents, catalysts & solvents 3

HCID 962WaterSolventHCID 6228DimethylformamideSolventHCID 8471TriethylamineSolvent

Procedure

7-Methoxy-1,2,3,4-tetrahydronaphthalene-1-carboxylic acid (0.62 g), 4-isopropylaniline (0.41 g) and triethylamine (0.84 mL) were dissolved in DMF (20 mL), and HOBt.H2O (0.48 g) and WSCI.HCl (0.61 g) were added under ice-cooling. The mixture was stirred at room temperature for one day and the reaction mixture was partitioned between water and ethyl acetate. The organic layer was washed with saturated brine and dried over anhydrous magnesium sulfate. The solvent was evaporated and ether was added to the residue. The precipitated solid was collected by filtration to give N-(4-isopropylphenyl)-7-methoxy-1,2,3,4-tetrahydronaphthalene-1-carboxamide (0.70 g). melting point: 168-169° C.

Workup

  1. temperaturecooling
  2. customthe reaction mixture was partitioned between water and ethyl acetate
  3. washThe organic layer was washed with saturated brine
  4. dry with materialdried over anhydrous magnesium sulfate
  5. customThe solvent was evaporated
  6. additionether was added to the residue
  7. filtrationThe precipitated solid was collected by filtration

Sources & evidence

ORD record
ord-5f72341407814a73b6df75b17a502fe0
Source dataset
uspto-grants-2012_06
Patent number
US08198454B2

Reaction notes

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