Reaction #1904043

Reaction equation

4,4′-diiodobiphenyl

potassium carbonate

N-phenyl-2-naphthylamine

DMF

→

beta-NPD

Yield 72.4%

Solvents

water

Conditions

Workup

1. 1
   TemperatureIt was heated at 200 degrees Centigrade
2. 2
   Temperaturerefluxed for 12 hours until no peaks of starting materials and intermediates
3. 3
   workup.ADDITIONto disperse
4. 4
   FiltrationIt was filtrated
5. 5
   Washwashed with water
6. 6
   OtherPrecipitated crystals
7. 7
   Otherwere purified by silica gel column chromatography

Procedure

25.1 g (61.5 mmol) of 4,4′-diiodobiphenyl, 2.14 g of poly(ethylene glycol) PEG-6000 that was available from Wako Pure Chemical Industries, Ltd., 17.1 g (0.124 mol) of potassium carbonate and 15.7 g (247 mmol) of powdered copper were added to 32.4 g (148 mmol) of N-phenyl-2-naphthylamine. It was heated at 200 degrees Centigrade. It was determined for tracing by the high-speed liquid chromatography. And it was stirred and refluxed for 12 hours until no peaks of starting materials and intermediates were determined. DMF and water were added thereto to disperse. It was filtrated and washed with water. Precipitated crystals were purified by silica gel column chromatography to obtain 26.2 g of beta-NPD that is represented by Compound Example 5 at 72.4% yield.

Source