Sulfuric Acid → 1-(4-Iodophenyl)cyclopropane-1-carboxylic acid

HRID 1005391

Reaktionsgleichung

Reaktionsgleichung von HRID 1005391
[C:1]1([C:7]2([C:10]([OH:12])=[O:11])[CH2:9][CH2:8]2)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[I:13]([O-])(=O)=O.[Na+].S(=O)(=O)(O)O>C(O)(=O)C>[I:13][C:4]1[CH:5]=[CH:6][C:1]([C:7]2([C:10]([OH:12])=[O:11])[CH2:9][CH2:8]2)=[CH:2][CH:3]=1

Komponenten

5

Edukt 3

HCID 1118Sulfuric Acid2×HCID 802061-Phenylcyclopropanecarboxylic acidHCID 23675764Sodium Iodate2×

Produkt 1

HCID 217064771-(4-Iodophenyl)cyclopropane-1-carboxylic acidAusbeute 106 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 176Acetic AcidLösungsmittel

Reaktionsbedingungen

Temperatur
70 °C

Versuchsvorschrift

A mixture of 1-phenylcyclopropane carboxylic acid (16.5 g, 101 mmol), sodium iodate (5.04 g) and concentrated sulfuric acid (1 mL) in acetic acid (70 mL) was stirred and heated at 70° C. for 2 days. Additional sodium iodate (1.88 g) and sulfuric acid (1 mL) were added, and stirring was continued for 1 day. The acetic acid was evaporated, and the residue was partitioned between ethyl acetate and water. The organic phase was washed with aqueous sodium thiosulfate, dried, filtered, and evaporated. The solid residue was recrystallized from methanol/water to give 1-(4-iodophenyl)cyclopropane-1-carboxylic acid (7.98 g, 27 mmol, 27%).

Aufarbeitung

  1. stirringstirring
  2. customThe acetic acid was evaporated
  3. customthe residue was partitioned between ethyl acetate and water
  4. washThe organic phase was washed with aqueous sodium thiosulfate
  5. customdried
  6. filtrationfiltered
  7. customevaporated
  8. customThe solid residue was recrystallized from methanol/water

Quellen und Nachweise

ORD-Eintrag
ord-ff3f423896ea47cd8538adb330f08f72
Quelldatensatz
uspto-grants-2000_04
Patentnummer
US06054470

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