Light-emitting device, condensed polycyclic compound used therein and method for producing same

A condensed polycyclic compound represented by Formula (5):

• (wherein, R30 to R43 each independently represent a hydrogen atom, a halogen atom, an alkyl group which may be substituted with an aromatic residue, an aromatic oxy group, an alkyloxy group, or a halogen atom, or an aromatic residue which may be substituted with an aromatic residue, an aromatic oxy group, an alkyl group, an alkyloxy group, or a halogen atom;
• at least one of R30 to R43 is a halogen atom or an aromatic residue which may be substituted with an aromatic residue, an aromatic oxy group, an alkyl group, an alkyloxy group or a halogen atom;
• and the neighboring groups among R30 to R43 may bind to each other forming a ring(s) which may be substituted, however excluding the case where R30 and R31 and R37 and R38, or R32 and R33 and R39 and R40, bind to each other forming unsubstituted benzene rings and all of R30 to R43 that do not form a ring are a hydrogen atom.).

A condensed polycyclic compound represented by Formula (6):

• (wherein, R44 to R57 each independently represent a hydrogen atom, a halogen atom, an alkyl group which may be substituted with an aromatic residue, an aromatic oxy group, an alkyloxy group or a halogen atom, or an aromatic residue which may be substituted with an aromatic residue, an aromatic oxy group, an alkyl group, an alkyloxy group, or a halogen atom;
• at least one of R44 to R57 is a halogen atom, an alkyl group which may be substituted with an aromatic residue, an aromatic oxy group, an alkyloxy group or a halogen atom, or an aromatic residue which may be substituted with an aromatic residue, an aromatic oxy group, an alkyl group, an alkyloxy group, or a halogen atom;
• and the neighboring groups among R44 to R57 may bind to each other forming a ring(s) which may be substituted.).

A method of producing a condensed polycyclic compound having the basic skeleton represented by the following General Formulae (1) and (2):

• characterized by ring-closing a compound having the basic skeleton represented by the following General Formulae (8) and (9):
• (wherein, X1, X2, X3 and X4 are the same as those described above.), in the presence of a sulfonic acid compound.