Method for synthesizing 4, 4'-di[4-(Di-p-tolyl amino) phenylethynyl] biphenyl

• Main Authors: MI YANGLI, HU LINLIN, AN YONG, AN ZHONGWEI, XU MAOLIANG
• Format: Patent
• Language: Chinese; English
• Published: 13.06.2012
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; CHEMISTRY; METALLURGY; ORGANIC CHEMISTRY

The invention discloses a method for synthesizing 4, 4'-di[4-(Di-p-tolyl amino) phenylethynyl] biphenyl, which comprises the following steps of: adding 4-(Di-p-amino) benzaldehyde, 4, 4'-dibenzyl phosphoric acid diethyl biphenyl, sodium tert-butoxide and N, N-dimethyl acetamide into a reaction bottle at a room temperature; placing the reaction bottle into a microwave chemical reactor after agitation and dissolution; reacting for 3-10 min at a microwave radiation power of 800W; and pouring reaction solution into 100 mL of methanol solution, then filtering and finally obtaining the 4, 4'-di[4-(Di-p-tolyl amino) phenylethynyl] biphenyl after methylbenzene recrystallization. The method is mainly used for the preparation of the 4, 4'-di[4-(Di-p-tolyl amino) phenylethynyl] biphenyl.