StartseiteMCPWorkbenchSkills
StartseiteWorkbenchBenachrichtigungenMein Bereich
llms.txt · MCP-AnleitungDatenschutz · Nutzungsbedingungen · Supportv1.8.0
  1. Startseite
  2. /Reaktion

O-Xylene → N-(6-fluoro-2-pyridyl)-3,4-dihydro-2-methyl-4-oxo-2H-1,2-benzothiazine-3-carboxamide 1,1-dioxide

HRID 354621
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 354621
[CH3:1][N:2]1[CH:7]([C:8]([O:10]C)=O)[C:6](=[O:12])[C:5]2[CH:13]=[CH:14][CH:15]=[CH:16][C:4]=2[S:3]1(=[O:18])=[O:17].[NH2:19][C:20]1[CH:25]=[CH:24][CH:23]=[C:22]([F:26])[N:21]=1.C1(C)C(C)=CC=CC=1>CO>[F:26][C:22]1[N:21]=[C:20]([NH:19][C:8]([CH:7]2[C:6](=[O:12])[C:5]3[CH:13]=[CH:14][CH:15]=[CH:16][C:4]=3[S:3](=[O:18])(=[O:17])[N:2]2[CH3:1])=[O:10])[CH:25]=[CH:24][CH:23]=1
KomponentenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

5

Edukt 3

HCID 7237O-XyleneHCID 120152Methyl 3,4-dihydro-2-methyl-4-oxo-2H-1,2-benzothiazine-3-carboxylate 1,1-dioxideHCID 27613996-Fluoropyridin-2-amine

Produkt 1

HCID 15917676N-(6-fluoro-2-pyridyl)-3,4-dihydro-2-methyl-4-oxo-2H-1,2-benzothiazine-3-carboxamide 1,1-dioxideAusbeute 72,3 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 887
Methanol
Lösungsmittel

Versuchsvorschrift

A mixture consisting of 7.68 g (0.0285 mole) of methyl 3,4-dihydro-2-methyl-4-oxo-2H-benzothiazine-3-carboxylate 1,1-dioxide, 4.8 g (0.0428 mole) of 2-amino-6-fluoropyridine, and 29 ml of xylene was refluxed for 17 hours, during which the methanol formed by this reaction was continuously distilled off. After the mixture was cooled by allowing it to stand overnight, the resulting precipitate was separated by filtration. The filtrate was concentrated and then cooled to obtain an additional precipitate, which was combined with the previously obtained precipitate and washed with hot chloroform. Thus, 7.2 g of crystals having a melting point of 246°-248° C. (decomp.) were obtained in a 72.3% yield.

Aufarbeitung

  1. customformed by this reaction
  2. distillationwas continuously distilled off
  3. temperatureAfter the mixture was cooled
  4. customthe resulting precipitate was separated by filtration
  5. concentrationThe filtrate was concentrated
  6. temperaturecooled
  7. customto obtain an additional precipitate, which
  8. washwashed with hot chloroform
  9. customwere obtained in a 72.3% yield

Quellen und Nachweise

ORD-Eintrag
ord-347b5b82cb4b4a0888065abf0ef50b4c
Quelldatensatz
uspto-grants-1983_03
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US04376119

Notizen zur Reaktion

Wird geladen…

Auf dieser SeiteKomponentenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion