Triethylamine → 3-[(8-Methoxy-2,2-dimethyl-2H-chromen-5-yl)amino]-2-naphthoic acid

HRID 478693Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 478693
Br[C:2]1[C:3]([C:12]([OH:14])=[O:13])=[CH:4][C:5]2[C:10]([CH:11]=1)=[CH:9][CH:8]=[CH:7][CH:6]=2.CO[C:17]1[CH:28]=[C:27]([NH2:29])[C:20]2[CH:21]=[CH:22][C:23]([CH3:26])([CH3:25])[O:24][C:19]=2[CH:18]=1.[C:30]([O-])(=[O:32])C.[K+].C(N(CC)CC)C>CC(O)C.CC([O-])=O.CC([O-])=O.[Cu+2].O.ClCCl>[CH3:30][O:32][C:18]1[CH:17]=[CH:28][C:27]([NH:29][C:2]2[C:3]([C:12]([OH:14])=[O:13])=[CH:4][C:5]3[C:10]([CH:11]=2)=[CH:9][CH:8]=[CH:7][CH:6]=3)=[C:20]2[C:19]=1[O:24][C:23]([CH3:25])([CH3:26])[CH:22]=[CH:21]2

Komponenten

8

Edukt 4

HCID 8471TriethylamineHCID 517044Potassium AcetateHCID 109981537-methoxy-2,2-dimethyl-2H-1-benzopyran-5-ylamineHCID 122263533-Bromonaphthalene-2-carboxylic acid

Produkt 1

HCID 220645103-[(8-Methoxy-2,2-dimethyl-2H-chromen-5-yl)amino]-2-naphthoic acid

Reagenzien, Katalysatoren, Lösungsmittel 3

HCID 165397Cupric acetate monohydrateKatalysatorHCID 3776IsopropanolLösungsmittelHCID 6344DichloromethaneLösungsmittel

Versuchsvorschrift

A solution containing 1.2 mmol of 3-bromonaphthalene-2-carboxylic acid, 1.19 mmol of 7-methoxy-2,2-dimethyl-2H-1-benzopyran-5-ylamine, 2.38 mmol of potassium acetate, 10 mg of Cu(OAc)2.H2O and 1.19 mmol of triethylamine in 17 ml of 2-propanol is refluxed for 24 hours and then concentrated under reduced pressure. The residue obtained is taken up in a 2/1 mixture of dichloromethane/1N HCl. The aqueous phase is extracted with dichloromethane and the combined organic phases are then treated in conventional manner. Chromatography of the residue over silica gel (dichloromethane) allows the expected product to be isolated.

Aufarbeitung

  1. temperatureis refluxed for 24 hours
  2. concentrationconcentrated under reduced pressure
  3. customThe residue obtained
  4. extractionThe aqueous phase is extracted with dichloromethane
  5. additionthe combined organic phases are then treated in conventional manner
  6. customto be isolated

Quellen und Nachweise

ORD-Eintrag
ord-60cc58db8b8f4133b005747252fcd923
Quelldatensatz
uspto-grants-2003_11
Patentnummer
US06642248B2

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