ORGANIC SULFUR COMPOUND, PROCESS FOR PRODUCTION OF THE SAME, AND ORGANIC ELECTROLUMINESCENCE ELEMENT UTILIZING THE SAME

摘要

Disclosed is an organic sulfur compound represented by general formula (a1) [wherein A represents -S-, -S(O)- or -S(O)2-; Z1 and Z4 independently represent a trivalent aromatic hydrocarbon group, or the like; Z2 and Z3 independently represent a bivalent aromatic hydrocarbon group, or the like; Ar1, Ar2, Ar3 and Ar4 independently represent an aromatic hydrocarbon group, or the like; and n represents a number of 0 or 1] or general formula (b1) [wherein A is as defined above; Z5 represents a trivalent aromatic hydrocarbon group, or the like; Ar represents an aromatic hydrocarbon group having a valency of m, or the like; Ar1 and Ar2 are as defined above; and m represents a number of 2 or 3].  The compound is useful as an electron transport material, a hole blocking material or a host material for an organic electroluminescence element.