Potassium Carbonate → 2-Dipropylamino-8-(2-methanesulphonamido-ethoxy)-1,2,3,4-tetrahydronaphthal

HRID 1073123Notes

Reaction equation

HRID 1073123 reaction equation
[CH2:1]([N:4]([CH2:19][CH2:20][CH3:21])[CH:5]1[CH2:14][CH2:13][C:12]2[C:7](=[C:8]([O:15][CH2:16][CH2:17][NH2:18])[CH:9]=[CH:10][CH:11]=2)[CH2:6]1)[CH2:2][CH3:3].[C:22](=[O:25])([O-])[O-].[K+].[K+].[CH3:28][S:29](Cl)(=[O:31])=[O:30].C(OC(C)C)(C)C.C(O)C>C1(C)C=CC=CC=1>[CH2:19]([N:4]([CH2:1][CH2:2][CH3:3])[CH:5]1[CH2:14][CH2:13][C:12]2[C:7](=[C:8]([O:15][CH2:16][CH2:17][NH:18][S:29]([CH3:28])(=[O:31])=[O:30])[CH:9]=[CH:10][CH:11]=2)[CH:6]1[CH:22]=[O:25])[CH2:20][CH3:21]

Participants

6

Reactant 4

HCID 11430Potassium CarbonateHCID 31297Methanesulfonyl chlorideHCID 141812122-Dipropylamino-8-(2-aminoethoxy)-1,2,3,4-tetrahydronaphthaleneHCID 23358034Diisopropyl ether ethanol

Product 1

HCID 221579772-Dipropylamino-8-(2-methanesulphonamido-ethoxy)-1,2,3,4-tetrahydronaphthal

Reagents, catalysts & solvents 1

HCID 1140TolueneSolvent

Procedure

1.45 g (5 mmol) of 2-dipropylamino-8-(2-aminoethoxy)-1,2,3,4-tetrahydronaphthalene and 1.38 g (10 mmol) of potassium carbonate were initially introduced into 20 ml of toluene. 0.63 g (5.5 mmol) of methanesulphonyl chloride was then added dropwise, and the mixture was subsequently stirred for 3 h at room temperature. The mixture was then filtered and evaporated. The residue obtained was stirred with petroleum ether and filtered off under suction. The product, obtained by chromatography over silica gel 60, 40-63 μm, using diisopropyl ether/ethanol, 3:2, was recrystallized from petroleum ether with activated charcoal.

Workup

  1. filtrationThe mixture was then filtered
  2. customevaporated
  3. customThe residue obtained
  4. filtrationfiltered off under suction
  5. customThe product, obtained by chromatography over silica gel 60, 40-63 μm
  6. customwas recrystallized from petroleum ether with activated charcoal

Sources & evidence

ORD record
ord-07ae6c9daa2e4ff5a88b995ba319c4d9
Source dataset
uspto-grants-1990_11
Patent number
US04968679

Reaction notes

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