Sodium Hydroxide → 2-[(1,2,3,4-tetrahydro-5-carboxymethoxy-2-naphthyl)methyl]-6-diphenylmethyl-3(2H)-pyridazinone

HRID 344035Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 344035
C([O:3][C:4]([CH2:6][O:7][C:8]1[CH:17]=[CH:16][CH:15]=[C:14]2[C:9]=1[CH2:10][CH2:11][CH:12]([CH2:18][N:19]1[C:24](=[O:25])[CH:23]=[CH:22][C:21]([CH:26]([C:33]3[CH:38]=[CH:37][CH:36]=[CH:35][CH:34]=3)[C:27]3[CH:32]=[CH:31][CH:30]=[CH:29][CH:28]=3)=[N:20]1)[CH2:13]2)=[O:5])C.[OH-].[Na+]>COCCOC>[C:4]([CH2:6][O:7][C:8]1[CH:17]=[CH:16][CH:15]=[C:14]2[C:9]=1[CH2:10][CH2:11][CH:12]([CH2:18][N:19]1[C:24](=[O:25])[CH:23]=[CH:22][C:21]([CH:26]([C:33]3[CH:38]=[CH:37][CH:36]=[CH:35][CH:34]=3)[C:27]3[CH:28]=[CH:29][CH:30]=[CH:31][CH:32]=3)=[N:20]1)[CH2:13]2)([OH:5])=[O:3]

Komponenten

4

Edukt 2

HCID 14798Sodium HydroxideHCID 701875372-[(1,2,3,4-tetrahydro-5-ethoxycarbonylmethoxy-2-naphthyi)methyl]-6-diphenylmethyl-3(2H)-pyridazinone

Produkt 1

HCID 591452362-[(1,2,3,4-tetrahydro-5-carboxymethoxy-2-naphthyl)methyl]-6-diphenylmethyl-3(2H)-pyridazinoneAusbeute 81,2 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 80711,2-DimethoxyethaneLösungsmittel

Versuchsvorschrift

A solution of 2-[(1,2,3,4-tetrahydro-5-ethoxycarbonylmethoxy-2-naphthyl)methyl]-6-diphenylmethyl-3(2H)-pyridazinone (0.43 g) in 1,2-dimethoxyethane (9.0 ml) and 1.0N aqueous solution of sodium hydroxide (0.85 ml) was stirred at room temperature For 5 hours. The solution was evaporated in vacuo and extracted with ethyl acetate and 1N hydrochloric acid. The organic layer was separated and washed with water and brine, dried over magnesium sulfate, and evaporated in vacuo. The residue was crystallized from n-hexane, ethyl acetate and ether to give 2-[(1,2,3,4-tetrahydro-5-carboxymethoxy-2-naphthyl)methyl]-6-diphenylmethyl-3(2H)-pyridazinone (330 mg) as a white powder.

Aufarbeitung

  1. customThe solution was evaporated in vacuo
  2. extractionextracted with ethyl acetate and 1N hydrochloric acid
  3. customThe organic layer was separated
  4. washwashed with water and brine
  5. dry with materialdried over magnesium sulfate
  6. customevaporated in vacuo
  7. customThe residue was crystallized from n-hexane, ethyl acetate and ether

Quellen und Nachweise

ORD-Eintrag
ord-936cda4a520241b19949ba0540926b42
Quelldatensatz
uspto-grants-1999_01
Patentnummer
US05863918

Notizen zur Reaktion

Wird geladen…