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Tributylphosphine → 4-(4-Chloro-2-fluorophenoxy)-7-(3-(1,1-dioxothiomorpholino)propoxy)-6-methoxyquinazoline

HRID 453995
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Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 453995
[Cl:1][C:2]1[CH:21]=[CH:20][C:5]([O:6][C:7]2[C:16]3[C:11](=[CH:12][C:13]([OH:19])=[C:14]([O:17][CH3:18])[CH:15]=3)[N:10]=[CH:9][N:8]=2)=[C:4]([F:22])[CH:3]=1.C(P(CCCC)CCCC)CCC.[O:36]=[S:37]1(=[O:47])[CH2:42][CH2:41][N:40]([CH2:43][CH2:44][CH2:45]O)[CH2:39][CH2:38]1.N(C(N1CCCCC1)=O)=NC(N1CCCCC1)=O>ClCCl.CCOCC>[Cl:1][C:2]1[CH:21]=[CH:20][C:5]([O:6][C:7]2[C:16]3[C:11](=[CH:12][C:13]([O:19][CH2:45][CH2:44][CH2:43][N:40]4[CH2:39][CH2:38][S:37](=[O:47])(=[O:36])[CH2:42][CH2:41]4)=[C:14]([O:17][CH3:18])[CH:15]=3)[N:10]=[CH:9][N:8]=2)=[C:4]([F:22])[CH:3]=1
KomponentenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

7

Edukt 4

HCID 13831TributylphosphineHCID 730421,1'-(Azodicarbonyl)dipiperidineHCID 114354734-(3-Hydroxypropyl)thiomorpholine 1,1-DioxideHCID 1356162044-(4-Chloro-2-fluorophenoxy)-7-hydroxy-6-methoxyquinazoline

Produkt 1

HCID 219359994-(4-Chloro-2-fluorophenoxy)-7-(3-(1,1-dioxothiomorpholino)propoxy)-6-methoxyquinazolineAusbeute 70 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 3283Diethyl EtherLösungsmittelHCID 6344DichloromethaneLösungsmittel

Versuchsvorschrift

4-(4-Chloro-2-fluorophenoxy)-7-hydroxy-6-methoxyquinazoline (5.0 g, 15.6 mmol) was suspended in dichloromethane (150 ml) and tributylphosphine (11.1 ml, 44.6 mmol) was added followed by stirring at ambient temperature for 30 minutes. To this mixture was added 3-(1,1-dioxothiomorpholino)-1-propanol (4.2 g, 21.8 mmol) followed by the addition of 1,1′-(azodicarbonyl)dipiperidine (11.7 g, 46.4 mmol) in portions. The mixture was stirred at ambient temperature overnight then diluted with ether (300 ml) and the precipitate was removed by filtration. The residue was chromatographed on silica eluting with dichloromethane and methanol (95/5). The relevant fractions were combined and evaporated to give a solid which was triturated with ethyl acetate filtered and dried to give 4-(4-chloro-2-fluorophenoxy)-7-(3-(1,1-dioxothiomorpholino)propoxy)-6-methoxyquinazoline (5.4 g, 70%).

Aufarbeitung

  1. stirringThe mixture was stirred at ambient temperature overnight
  2. customthe precipitate was removed by filtration
  3. customThe residue was chromatographed on silica eluting with dichloromethane and methanol (95/5)
  4. customevaporated
  5. customto give a solid which
  6. customwas triturated with ethyl acetate
  7. filtrationfiltered
  8. customdried

Quellen und Nachweise

ORD-Eintrag
ord-177561d139434939a020630c8378a071
Quelldatensatz
uspto-grants-2013_07
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US08492560B2

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