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N,N'-diphenyl-N,N'-bis(3-methylphenyl)-[1,1-biphenyl]-4,4'-diamine[ No CAS ]
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Reaction Conditions
Operation in experiment
(Synthetic Example 3) The mixture of 3,3-TPD, 4,4-TPD and N,N'-diphenyl-N-(3-tolyl)-N'-(4-tolyl)-4,4'-diaminobiphenyl (3,4-TPD) that is represented by Compound Example 3 was synthesized as follows. Mixture of 438g (2.43mol) of 3-methyldiphenylamine and 49g (0.27mol) of 4-methyldiphenylamine whose mol ratio is 90: 10 were added to a 5000 ml four-necked flask made of glass. Further 28g (4.4mol) of powdered copper was added thereto. It was heated at 30 degrees Centigrade. 450g (1.1mol) of 4,4'-diiodobiphenyl and 47g of poly(ethylene glycol) PEG-6000 that was available from Wako Pure Chemical Industries, Ltd. were added thereto. It was heated at 100 degrees Centigrade, and then 307g (2.2mol) of powdered potassium carbonate was added thereto. It was heated at 205 degrees Centigrade, and stirred for 14 hours. After cooling, DMF was added thereto, and stirred at 130 degrees Centigrade for 1 hour. After cooling till 90 degrees Centigrade, hot water was added thereto. It was stirred for 2 hours. After filtration, filtrated cake was washed with hot water to obtain brown solid. The obtained brown solid was dispersed and stirred into DMF for 1 hour, filtrated and washed with DMF and methanol. The obtained solid was refluxed with activated carbon in xylene for 1 hour. After cooling till 70 degrees Centigrade, it was filtrated. The filtrate was passed through a column packing adsorbent to obtain colorless solution. The solvent was distilled under reduced pressure. Precipitated crystals were filtrated out and dried to obtain 455g of mixture of TPD.
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