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Hydrochloric Acid → N-[(4,6-Dimethoxypyrimidin-2-yl)aminocarbonyl]-2-formylbenzenesulfonamide

HRID 235563
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 235563
[H-].COCCO[Al+]OCCOC.[Na+].[H-].N1CCOCC1.[CH3:21][O:22][C:23]1[CH:28]=[C:27]([O:29][CH3:30])[N:26]=[C:25]([NH:31][C:32]([NH:34][S:35]([C:38]2[CH:43]=[CH:42][CH:41]=[CH:40][C:39]=2[C:44](OC)=[O:45])(=[O:37])=[O:36])=[O:33])[N:24]=1.Cl>O1CCCC1>[CH3:21][O:22][C:23]1[CH:28]=[C:27]([O:29][CH3:30])[N:26]=[C:25]([NH:31][C:32]([NH:34][S:35]([C:38]2[CH:43]=[CH:42][CH:41]=[CH:40][C:39]=2[CH:44]=[O:45])(=[O:37])=[O:36])=[O:33])[N:24]=1
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Komponenten

6

Edukt 4

HCID 313Hydrochloric AcidHCID 8083MorpholineHCID 10810737N-[(4,6-Dimethoxypyrimidin-2-yl)aminocarbonyl]-2-methoxycarbonylbenzenesulfonamideHCID 21584525Sodium bis(2-methoxyethoxy)aluminiumhydride

Produkt 1

HCID 13097377N-[(4,6-Dimethoxypyrimidin-2-yl)aminocarbonyl]-2-formylbenzenesulfonamide

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 8028TetrahydrofuranLösungsmittel

Reaktionsbedingungen

Temperatur
-40 °C

Versuchsvorschrift

A mixture of 3.0 g of sodium bis(2-methoxyethoxy)aluminum hydride and 0.9 g of morpholine in 25 ml of dry tetrahydrofuran was cooled to -40° C. and 1.0 g of N-[(4,6-dimethoxypyrimidin-2-yl)aminocarbonyl]-2-methoxycarbonylbenzenesulfonamide was added. The resulting clear homogeneous solution was allowed to warm to room temperature over a period of 2 hours. Dilute hydrochloric acid was added and the mixture was extracted with methylene chloride. The organic extracts were washed, dried and evaporated. The crude product, which contained the desired aldehyde, the unreacted ester and the over-reduced alcohol, was purified by means of dry column chromatography. The purified product had a m.p. of 180° C.

Aufarbeitung

  1. temperatureto warm to room temperature over a period of 2 hours
  2. extractionthe mixture was extracted with methylene chloride
  3. washThe organic extracts were washed
  4. customdried
  5. customevaporated
  6. customthe unreacted ester and the over-reduced alcohol, was purified by means of dry column chromatography

Quellen und Nachweise

ORD-Eintrag
ord-ae28bbe99f4648c1a2cede1f0bf812e3
Quelldatensatz
uspto-grants-1987_02
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US04640704

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