Method of producing a triarylamine compound

A production method of a triarylamine compound, comprising the steps of:

• providing a compound represented by following formula (5) and a compound represented by following formula (2);
• and
• allowing the compound represented by formula (5) to react with the compound represented by formula (2) in the presence of palladium and alkylphosphine, to form a compound represented by following formula (6),
• wherein, in formula (5), Ar2, Ar3, Ar5, and Ar6 each independently represent an aryl group which may have a methyl group, an ethyl group, a propyl group, and/or a butyl group;
• and Ar4 represents an arylene group or a heteroarylene group, each of which may be substituted, selected from the group consisting of the following groups 5-1 to 5-11:
• wherein, in the groups 5-1 to 5-11, * indicates a bonding site;
• X represents a halogen atom substituted onto Ar2, Ar3, Ar5 and/or Ar6;
• if a plurality of X is present, the plurality of X may be the same or different halogen atom from each other;
• and m is 3 to 4,
• wherein, in formula (2), R1 represents a hydrogen atom or an alkyl group;
• R2 represents a hydrogen atom or a methyl group;
• and R3 represents a hydrogen atom, an alkoxy group, an aryl group, an amino group, or an alkyl group, and
• wherein, in formula (6), Ar2, Ar3, Ar5, Ar6, X and m have the same meanings as those of formula (5), respectively;
• R1, R2 and R3 have the same meanings as those of formula (2), respectively;
• and n represents a natural number equal to or less than m.