Reaktion #64265

Reaktionsgleichung

HCl

3-nitrobenzoyl chloride

bromobenzene

aluminum chloride

→

white crystals

Ausbeute 91.7%

4-bromo-3'-nitrobenzophenone

Ausbeute 91.7%

Reaktionsbedingungen

Aufarbeitung

1. 1
   SonstigeIn a 250 mL flask equipped with a nitrogen inlet
2. 2
   Temperaturreflux condenser
3. 3
   Temperaturcooled to room temperature
4. 4
   workup.STIRRINGstirred for an additional 16 h
5. 5
   Extraktionthe organics were extracted
6. 6
   Trocknendried over magnesium sulfate
7. 7
   Sonstigethe solvents were removed under reduced pressure
8. 8
   Sonstigeto yield a yellow powder
9. 9
   SonstigeRecrystallization from acetone

Vorschrift

In a 250 mL flask equipped with a nitrogen inlet, overhead stirring assembly, and reflux condenser were placed 3-nitrobenzoyl chloride (28 g, 0.15 mol), bromobenzene (130 g, 0.83 mol), and aluminum chloride (22 g, 0.16 mol). The mixture was heated for 3 h at 100° C., then cooled to room temperature and stirred for an additional 16 h. The mixture was poured into 1 L of acidic (HCl) ice water, and the organics were extracted using methylene chloride, dried over magnesium sulfate, and the solvents were removed under reduced pressure to yield a yellow powder. Recrystallization from acetone afforded 42.1 g (90% yield) of white crystals: m.p. 104°-105° C.

Quelle