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Tributylphosphine → HCID 22478214, Verbindung

HRID 547180
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Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 547180
[OH:1][CH2:2][CH2:3][N:4]1[CH2:9][CH2:8][S:7][CH2:6][CH2:5]1.N(C(N1CCCCC1)=O)=NC(N1CCCCC1)=O.[Cl:28][C:29]1[CH:48]=[CH:47][C:32]([NH:33][C:34]2[C:43]3[C:38](=[CH:39][C:40](O)=[C:41]([O:44][CH3:45])[CH:42]=3)[N:37]=[CH:36][N:35]=2)=[C:31]([F:49])[CH:30]=1.C(P(CCCC)CCCC)CCC>C(Cl)Cl.CCOCC>[Cl:28][C:29]1[CH:48]=[CH:47][C:32]([NH:33][C:34]2[C:43]3[C:38](=[CH:39][C:40]([O:1][CH2:2][CH2:3][N:4]4[CH2:9][CH2:8][S:7][CH2:6][CH2:5]4)=[C:41]([O:44][CH3:45])[CH:42]=3)[N:37]=[CH:36][N:35]=2)=[C:31]([F:49])[CH:30]=1
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Komponenten

7

Edukt 4

HCID 13831TributylphosphineHCID 730421,1'-(Azodicarbonyl)dipiperidineHCID 5756592-(Thiomorpholin-4-yl)ethan-1-olHCID 1355137204-(4-Chloro-2-fluorophenylamino)-7-hydroxy-6-methoxyquinazoline

Produkt 1

HCID 22478214HCID 22478214, VerbindungAusbeute 22,3 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 3283Diethyl EtherLösungsmittel
HCID 6344DichloromethaneLösungsmittel2×

Versuchsvorschrift

4-(2-Hydroxyethyl)thiomorpholine (114 mg, 0.78 mmol), (J. Am. Chem. Soc. 1934. 56, 1720), in methylene chloride (1 ml) followed by 1,1′-(azodicarbonyl)dipiperidine (525 mg, 2.08 mmol) were added to a stirred solution of 4-(4-chloro-2-fluoroanilino)-7-hydroxy-6-methoxyquinazoline (225 mg, 0.70 mmol), (prepared as described for the starting material in Example 2), and tributylphosphine (0.51 ml, 2.08 mmol) in methylene chloride (10 ml) under nitrogen. The mixture was stirred for 3.5 hours and allowed to stand for a further 18 hours. Ether (8 ml) was added, the precipitate removed by filtration and the solvent removed from the filtrate by evaporation. The residue was dissolved in acetone and ethereal hydrogen chloride (2.5 ml of a 1 M solution) added. The precipitated product was collected by filtration and purified by column chromatography eluting with methylene chloride/methanol/aqueous ammonia (150/8/1). The purified product was triturated with ether to give 4-(4-chloro-2-fluoroanilino)-6-methoxy-7-(2-thiomorpholinoethoxy)quinazoline (70 mg, 22%) as a pale yellow solid.

Aufarbeitung

  1. custom(prepared
  2. waitto stand for a further 18 hours
  3. customthe precipitate removed by filtration
  4. customthe solvent removed from the filtrate by evaporation
  5. dissolutionThe residue was dissolved in acetone
  6. additionethereal hydrogen chloride (2.5 ml of a 1 M solution) added
  7. filtrationThe precipitated product was collected by filtration
  8. custompurified by column chromatography
  9. washeluting with methylene chloride/methanol/aqueous ammonia (150/8/1)
  10. customThe purified product was triturated with ether

Quellen und Nachweise

ORD-Eintrag
ord-ae7762c7ec5b42ac80ab8f118ecac32c
Quelldatensatz
uspto-grants-2011_05
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
USRE042353E1

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