Hydrochloric Acid → 1-(4-Fluorophenyl)-3-(3,4-methylenedioxyphenyl)indane-2-carboxylic acid

HRID 650746Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 650746
[F:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2(O)[C:16]3[C:11](=[CH:12][CH:13]=[CH:14][CH:15]=3)[C:10]([C:17]3[CH:22]=[CH:21][C:20]4[O:23][CH2:24][O:25][C:19]=4[CH:18]=3)=[C:9]2[C:26]([O:28]CC)=[O:27])=[CH:4][CH:3]=1.C([SiH](CC)CC)C.B(F)(F)F.CCOCC.Cl>C(Cl)Cl>[F:1][C:2]1[CH:7]=[CH:6][C:5]([CH:8]2[C:16]3[C:11](=[CH:12][CH:13]=[CH:14][CH:15]=3)[CH:10]([C:17]3[CH:22]=[CH:21][C:20]4[O:23][CH2:24][O:25][C:19]=4[CH:18]=3)[CH:9]2[C:26]([OH:28])=[O:27])=[CH:4][CH:3]=1

Komponenten

6

Edukt 4

HCID 313Hydrochloric AcidHCID 8000Boron trifluoride etherateHCID 12052TriethylsilaneHCID 18969656Ethyl (1RS)-1-(4-Fluorophenyl)-1-hydroxy-3-(3,4-methylenedioxyphenyl)indene-2-carboxylate

Produkt 1

HCID 159085011-(4-Fluorophenyl)-3-(3,4-methylenedioxyphenyl)indane-2-carboxylic acidAusbeute 96,6 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6344DichloromethaneLösungsmittel

Versuchsvorschrift

To a solution of ethyl (1RS)-1-(4-fluorophenyl)-1-hydroxy-3-(3,4-methylenedioxyphenyl)indene-2-carboxylate (45 mg, 0.11 mmol) in CH2Cl2 (3 ml) at 0° C. was added triethylsilane (38 μl, 0.24 mmol), followed by boron trifluoride etherate (121 μl, 0.98 mmol). The reaction mixture was allowed to warm to room temperature and stirred for 15 min, at which time was added slowly 3M HCl. The mixture was extracted with EtOAc. The organic extract was washed successively with H2O, 5% aqueous NaHCO3 and saturated aqueous NaCl. The solvent was removed in vacuao to provide the title compound (40 mg, 90%) as a mixture of Δ1 and Δ2 double bond isomers.

Aufarbeitung

  1. extractionThe mixture was extracted with EtOAc
  2. extractionThe organic extract
  3. washwas washed successively with H2O, 5% aqueous NaHCO3 and saturated aqueous NaCl
  4. customThe solvent was removed in vacuao

Quellen und Nachweise

ORD-Eintrag
ord-d1e45e0a78d94419adcdc8a519354ed4
Quelldatensatz
uspto-grants-2001_08
Patentnummer
US06274737B1

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