Water → Ethyl 8-chloro-1-[(6-methylpyridin-3-yl)methyl]-4-oxo-1,4-dihydrocinnoline-3-carboxylate

HRID 449980Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 449980
Br[C:2]1[N:7]=[CH:6][C:5]([CH2:8][N:9]2[C:18]3[C:13](=[CH:14][CH:15]=[CH:16][C:17]=3[Cl:19])[C:12](=[O:20])[C:11]([C:21]([O:23][CH2:24][CH3:25])=[O:22])=[N:10]2)=[CH:4][CH:3]=1.[Cl-].[CH3:27][Zn+].O>O1CCCC1.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[Cl:19][C:17]1[CH:16]=[CH:15][CH:14]=[C:13]2[C:18]=1[N:9]([CH2:8][C:5]1[CH:6]=[N:7][C:2]([CH3:27])=[CH:3][CH:4]=1)[N:10]=[C:11]([C:21]([O:23][CH2:24][CH3:25])=[O:22])[C:12]2=[O:20]

Komponenten

6

Edukt 3

HCID 962WaterHCID 86659998Ethyl 1-[(6-bromopyridin-3-yl)methyl]-8-chloro-4-oxo-1,4-dihydrocinnoline-3-carboxylateHCID 178477797HCID 178477797, Verbindung

Produkt 1

HCID 86660002Ethyl 8-chloro-1-[(6-methylpyridin-3-yl)methyl]-4-oxo-1,4-dihydrocinnoline-3-carboxylate

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 178418397HCID 178418397, VerbindungKatalysatorHCID 8028TetrahydrofuranLösungsmittel

Versuchsvorschrift

Ethyl 1-[6-bromopyridin-3-yl)methyl]-8-chloro-4-oxo-1,4-dihydrocinnoline-3-carboxylate [(Example 69, Step 1), 0.11 g, 0.25 mmol] was dissolved in tetrahydrofuran (1.5 mL), sparged under nitrogen and treated with methylzinc chloride (0.18 mL, 2.0 M tetrahydrofuran solution, 0.35 mmol, 1.4 equiv) and 1,1′bis(diphenylphosphino)ferrocene-palladium(II)dichloride dichloromethane complex (10 mg, 0.013 mmol, 0.05 equiv). After stirring for 15 minutes, tetrakis(triphenylphosphine)palladium(0) (58 mg, 0.050 mmol, 0.2 equiv) were added and the mixture was stirred at ambient temperature for an additional 2 hours. The mixture was poured into water, extracted twice with ethyl acetate and the combined organic extracts were dried with sodium sulfate, filtered and concentrated in vacuo. The residue was purified by silica gel gradient chromatography (100:0 to 0:100; hexanes:ethyl acetate), providing the titled compound.

Aufarbeitung

  1. customsparged under nitrogen
  2. stirringthe mixture was stirred at ambient temperature for an additional 2 hours
  3. extractionextracted twice with ethyl acetate
  4. dry with materialthe combined organic extracts were dried with sodium sulfate
  5. filtrationfiltered
  6. concentrationconcentrated in vacuo
  7. customThe residue was purified by silica gel gradient chromatography (100:0 to 0:100; hexanes:ethyl acetate)

Quellen und Nachweise

ORD-Eintrag
ord-c1de1d7d585e4b3db82b6bc5cbfbc5ed
Quelldatensatz
uspto-grants-2013_07
Patentnummer
US08486946B2

Notizen zur Reaktion

Wird geladen…