Hydrochloric Acid → 2-(1,3-Dioxo-1,3-dihydroisoindol-2-yl)-4-phenyl-thiophene-3-carboxylic acid

HRID 270165Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 270165
[OH-].[Na+].CO.C([O:7][C:8]([C:10]1[C:14]([C:15]2[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=2)=[CH:13][S:12][C:11]=1[N:21]1[C:29](=[O:30])[C:28]2[C:23](=[CH:24][CH:25]=[CH:26][CH:27]=2)[C:22]1=[O:31])=[O:9])C.Cl>O>[O:30]=[C:29]1[C:28]2[C:23](=[CH:24][CH:25]=[CH:26][CH:27]=2)[C:22](=[O:31])[N:21]1[C:11]1[S:12][CH:13]=[C:14]([C:15]2[CH:16]=[CH:17][CH:18]=[CH:19][CH:20]=2)[C:10]=1[C:8]([OH:9])=[O:7]

Komponenten

6

Edukt 4

HCID 313Hydrochloric AcidHCID 887MethanolHCID 14798Sodium HydroxideHCID 70358872-(1,3-Dioxo-1,3-dihydroisoindol-2-yl)-4-phenyl-thiophene-3-carboxylic acid ethyl ester

Produkt 1

HCID 219643732-(1,3-Dioxo-1,3-dihydroisoindol-2-yl)-4-phenyl-thiophene-3-carboxylic acidAusbeute 92 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 962WaterLösungsmittel2×

Versuchsvorschrift

To a solution of NaOH (1.4 mmol) in a 1:1 mixture of methanol:H2O (6 mL) was added 2-(1,3-dioxo-1,3-dihydroisoindol-2-yl)-4-phenyl-thiophene-3-carboxylic acid ethyl ester (0.7 mmol, Example 1, Part C). The mixture was heated to reflux for 90 min, then diluted with water (12 mL), chilled in an ice bath, and acidified with concentrated HCl. The product that precipitated was collected by filtration, washed with water, and dried, affording the desired compound as a white solid in 92% yield.

Aufarbeitung

  1. temperatureThe mixture was heated
  2. temperatureto reflux for 90 min
  3. temperaturechilled in an ice bath
  4. customThe product that precipitated
  5. filtrationwas collected by filtration
  6. washwashed with water
  7. customdried

Quellen und Nachweise

ORD-Eintrag
ord-73b11ef3cb9e4250a99eced08c674f73
Quelldatensatz
uspto-grants-2008_11
Patentnummer
US07449490B2

Notizen zur Reaktion

Wird geladen…