Oxadiazole Derivative, and Light-Emitting Element, Light-Emitting Device, Electronic Device, and Lighting Device Using Oxadiazole Derivative

A light-emitting element using an oxadiazole derivative represented by General Formula (G1),

• wherein:
• Ar1 represents a substituted or unsubstituted aryl group having 6 to 10 carbon atoms in a ring, and when Ar1 has a substituent, the substituent is an alkyl group having 1 to 4 carbon atoms or an aryl group having 6 to 10 carbon atoms in a ring;
• Ar2 represents a substituted or unsubstituted aryl group having 6 to 10 carbon atoms in a ring or a substituted or unsubstituted heteroaryl group having 4 to 9 carbon atoms, and when Ar2 has a substituent, the substituent is an alkyl group having 1 to 4 carbon atoms or an aryl group having 6 to 10 carbon atoms in a ring;
• and
• R1 and R2 independently represent a hydrogen atom or an alkyl group having 1 to 4 carbon atoms.

A light-emitting device comprising:

• a pair of electrodes;
• and
• a layer including an oxadiazole derivative represented by General Formula (G1) between the pair of electrodes,
• wherein:
• Ar1 represents a substituted or unsubstituted aryl group having 6 to 10 carbon atoms in a ring, and when Ar1 has a substituent, the substituent is an alkyl group having 1 to 4 carbon atoms or an aryl group having 6 to 10 carbon atoms in a ring;
• Ar2 represents a substituted or unsubstituted aryl group having 6 to 10 carbon atoms in a ring or a substituted or unsubstituted heteroaryl group having 4 to 9 carbon atoms, and when Ar2 has a substituent, the substituent is an alkyl group having 1 to 4 carbon atoms or an aryl group having 6 to 10 carbon atoms in a ring;
• and
• R1 and R2 independently represent a hydrogen atom or an alkyl group having 1 to 4 carbon atoms.

An electronic device comprising a light-emitting device which has a light-emitting element, the light-emitting element comprising:

• a pair of electrodes;
• and
• a layer including an oxadiazole derivative represented by General Formula (G1) between the pair of electrodes,
• wherein:
• Ar1 represents a substituted or unsubstituted aryl group having 6 to 10 carbon atoms in a ring, and when A1 has a substituent, the substituent is an alkyl group having 1 to 4 carbon atoms or an aryl group having 6 to 10 carbon atoms in a ring;
• Ar2 represents a substituted or unsubstituted aryl group having 6 to 10 carbon atoms in a ring or a substituted or unsubstituted heteroaryl group having 4 to 9 carbon atoms, and when Ar2 has a substituent, the substituent is an alkyl group having 1 to 4 carbon atoms or an aryl group having 6 to 10 carbon atoms in a ring;
• and
• R1 and R2 independently represent a hydrogen atom or an alkyl group having 1 to 4 carbon atoms.

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

• a pair of electrodes;
• and
• an layer comprising a oxadiazole derivative between the pair of electrodes,
• wherein:
• the oxadiazole derivative represented by General Formula (G1);
• Ar1 represents a substituted or unsubstituted aryl group having 6 to 10 carbon atoms in a ring, and when Ar1 has a substituent, the substituent is an alkyl group having 1 to 4 carbon atoms or an aryl group having 6 to 10 carbon atoms in a ring;
• Ar2 represents a substituted or unsubstituted aryl group having 6 to 10 carbon atoms in a ring or a substituted or unsubstituted heteroaryl group having 4 to 9 carbon atoms, and when Ar2 has a substituent, the substituent is an alkyl group having 1 to 4 carbon atoms or an aryl group having 6 to 10 carbon atoms in a ring;
• and
• R1 and R2 independently represent a hydrogen atom or an alkyl group having 1 to 4 carbon atoms.

A lighting device using an oxadiazole derivative between a pair of electrodes,

• wherein:
• the oxadiazole derivative represented by General Formula (G1);
• Ar1 represents a substituted or unsubstituted aryl group having 6 to 10 carbon atoms in a ring, and when Ar1 has a substituent, the substituent is an alkyl group having 1 to 4 carbon atoms or an aryl group having 6 to 10 carbon atoms in a ring;
• Ar2 represents a substituted or unsubstituted aryl group having 6 to 10 carbon atoms in a ring or a substituted or unsubstituted heteroaryl group having 4 to 9 carbon atoms, and when Ar2 has a substituent, the substituent is an alkyl group having 1 to 4 carbon atoms or an aryl group having 6 to 10 carbon atoms in a ring;
• and
• R1 and R2 independently represent a hydrogen atom or an alkyl group having 1 to 4 carbon atoms.