Reaktion #312228

Reaktionsgleichung

3-Iodo-7-nitro-5H-dibenzo[a,d]cyclohepten-5-one

→

3-Amino-7-iodo-5H-dibenzo[a,d]cyclohepten-5-one

Lösungsmittel

acetic acid

Reaktionsbedingungen

Aufarbeitung

1. 1
   workup.ADDITIONadded in portions as the solid
2. 2
   TemperaturThe temperature of the mixture is maintained between 95° and 100° throughout the addition and for 10-15 minutes
3. 3
   TemperaturThe mixture is then cooled to ca 50°

Vorschrift

3-Iodo-7-nitro-5H-dibenzo[a,d]cyclohepten-5-one (23.4 g., 0.062 mole) in 140 ml. of glacial acetic acid is heated to 90° and treated with stannous chloride dihydrate (52 g., 0.23 mole), added in portions as the solid. The temperature of the mixture is maintained between 95° and 100° throughout the addition and for 10-15 minutes thereafter. The mixture is then cooled to ca 50° and poured into 1 liter of ice water.

Quelle