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With tri-tert-butyl phosphine; bis(dibenzylideneacetone)-palladium(0); sodium t-butanolate; In toluene;Reflux;
N, 100 ml N'- diphenyl -p-phenylenediamine 1.0g (3.84 mmol), 2 - (4 - bromophenyl) - N N-phenylbenzobenzoimidazole (2 - (4 - Bromophenyl) - N-phenylbenzoimidazole (N, N' - N-phenylbenzimidazoles) 2.8g (8.07 mmol), Pd (dba) are added to2Unitunitunito 220 mg (0.384 mmol), 50% P (t-Bu)3Unitz 310 mg (0.765 mmol). NaOOOOOOOtBu922mg (9.60 mmol) 20 ml and toluene (Tolulu)The reaction was terminated, cooled to normal temperature, solidified with MeOH, and filtered. The solid was purified by silica gel column chromatography (MC: HEX), and then solidified, with EA, and filtered, whereby a yellow solid compound 2 - 126 (LT17 - 35 - 614) 1.9g (yield :) was obtained. Unitz 62.0%).