Heterocyclic Compound, and Light-Emitting Element, Light-Emitting Device, Lighting Device, and Electronic Appliance Using Heterocyclic Compound

A light-emitting device comprising a light-emitting element, the light-emitting element comprising:

• a pair of electrodes;
• and
• a layer including a light-emitting substance and a heterocyclic compound between the pair of electrodes,
• wherein:
• the heterocyclic compound is represented by a general formula (G1);
• Ar1 and Ar2 independently represent a substituted or unsubstituted aryl group having 6 to 10 carbon atoms in a ring;
• Het represents any one of substituents represented by the following general formulae (S1-1) and (S1-2);
• Ar3 to Ar6 independently represent a substituted or unsubstituted aryl group having 6 to 10 carbon atoms in a ring, and
• R1 represents any one of a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, and an aryl group having 6 to 10 carbon atoms in a ring.

A lighting device comprising a light-emitting element, the light-emitting element comprising:

• a pair of electrodes;
• and
• a layer including a light-emitting substance and a heterocyclic compound between the pair of electrodes,
• wherein:
• the heterocyclic compound is represented by a general formula (G1);
• Ar1 and Ar2 independently represent a substituted or unsubstituted aryl group having 6 to 10 carbon atoms in a ring;
• Het represents any one of substituents represented by the following general formulae (S1-1) and (S1-2);
• Ar3 to Ar6 independently represent a substituted or unsubstituted aryl group having 6 to 10 carbon atoms in a ring, and
• R1 represents any one of a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, and an aryl group having 6 to 10 carbon atoms in a ring.

An electronic appliance comprising a light-emitting element, the light-emitting element comprising:

• a pair of electrodes;
• and
• a layer including a light-emitting substance and a heterocyclic compound between the pair of electrodes,
• wherein:
• the heterocyclic compound is represented by a general formula (G1);
• Ar1 and Ar2 independently represent a substituted or unsubstituted aryl group having 6 to 10 carbon atoms in a ring;
• Het represents any one of substituents represented by the following general formulae (S1-1) and (S1-2);
• Ar3 to Ar6 independently represent a substituted or unsubstituted aryl group having 6 to 10 carbon atoms in a ring, and
• R1 represents any one of a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, and an aryl group having 6 to 10 carbon atoms in a ring.