Yield:13080-85-8 99%

Reaction Conditions:

with hydrogen;nickel;triethylamine in ethyl acetate at 20 - 60; under 11400.8 Torr;Inert atmosphere;Reagent/catalyst;

Steps:

1
In the 20 ~ 30 ° C nitrogen (50-80ml / min) protection,210 g of 4,4'-bis (4-nitrophenoxy) biphenyl was used as a starting material,Plus lg of triethylamine,16. 8 g ofNi, 840 ml of ethyl acetate at a pressure of 15 atm and a temperature of 40 to 60 ° C,The reaction was carried out for 5 to 8 hours and cooled to 20 to 30 ° C. The material was taken out, filtered, stripped of solvent and dried to obtain 178. 8 g of 4,4'-bis (4-aminophenoxy) biphenyl as a white solid powder,The purity was 99.91%

References:

Yantai Haichuan Chemicals Co., Ltd.;Li, Shuguo;Zhao, Qingshan;Wang, Shulin;Zhao, Feng;Gong, Zhenshan CN105294461, 2016, A Location in patent:Paragraph 0031; 0033

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