Compound for organic electrical element, organic electrical element using same, and electronic device comprising same

A 59% to 73% deuterated compound represented by Formula 1:

• wherein:
• 1) R1 and R2 are each independently a C1-C50 alkyl group, and R1 and R2 do not bond to each other to form a ring,
• 2) R3 and R4 are each independently selected from the group consisting of hydrogen;
• deuterium;
• halogen;
• a cyano group;
• a nitro group;
• a C6-C60 aryl group;
• a fluorenyl group;
• a C2-C60 heterocyclic group including at least one heteroatom of O, N, S, Si or P;
• a fused ring group of a C3-C60 aliphatic ring and a C6-C60 aromatic ring;
• a C1-C50 alkyl group;
• a C2-C20 alkenyl group;
• a C2-C20 alkynyl group;
• a C1-C30 alkoxyl group;
• a C6-C30 aryloxy group;
• and -L′-N(Ra)(Rb);
• or, when a and b are 2 or more, a plurality of adjacent R3 or a plurality of R4 may be bonded to each other to form a ring,
• wherein L′ is selected from the group consisting of a single bond;
• a C6-C60 arylene group;
• a fluorenylene group;
• a fused ring group of a C3-C60 aliphatic ring and a C6-C60 aromatic ring;
• a C2-C60 heterocyclic group, and Ra and Rb are each independently selected from the group consisting of a C6-C60 aryl group;
• a fluorenyl group;
• a fused ring group of a C3-C60 aliphatic ring and a C6-C60 aromatic ring;
• a C2-C60 heterocyclic group including at least one heteroatom of O, N, S, Si or P,
• 3) L1, L2 and L3 are each independently selected from the group consisting of a single bond;
• a C6-C60 arylene group;
• a fluorenylene group;
• a fused ring group of a C3-C60 aliphatic ring and a C6-C60 aromatic ring;
• and a C2-C60 heterocyclic group,
• 4) a is an integer of 0 to 4, b is an integer of 0 to 3,
• 5) Ar1 and Ar2 are each independently selected from the group consisting of a C6-C60 aryl group;
• a C2-C60 heterocyclic group including at least one heteroatom of O, N, S, Si or P;
• a fused ring group of a C3-C60 aliphatic ring and a C6-C60 aromatic ring;
• a C1-C60 alkyl group;
• a C2-C20 alkenyl group;
• a C2-C20 alkynyl group;
• a C1-C30 alkoxyl group;
• a C6-C30 aryloxy group;
• and -L′-N(Ra)(Rb),
• 6) wherein the aryl group, arylene group, heterocyclic group, fluorenyl group, fluorenylene group, fused ring group, alkyl group, alkenyl group, alkoxy group and aryloxy group may be substituted with one or more substituents selected from the group consisting of deuterium;
• halogen;
• a silane group;
• a siloxane group;
• a boron group;
• a germanium group;
• a cyano group;
• a nitro group;
• a C1-C20 alkylthio group;
• a C1-C20 alkoxyl group;
• a C1-C20 alkyl group;
• a C2-C20 alkenyl group;
• a C2-C20 alkynyl group;
• a C6-C20 aryl group;
• a C6-C20 aryl group substituted with deuterium;
• a fluorenyl group;
• a C2-C20 heterocyclic group;
• a C3-C20 cycloalkyl group;
• a C7-C20 arylalkyl group;
• and a C8-C20 arylalkenyl group;
• and -L′-N(Ra)(Rb), wherein the substituents may be bonded to each other to form a saturated or unsaturated ring, wherein the term ‘ring’ means a C3-C60 aliphatic ring or a C6-C60 aromatic ring or a C2-C60 heterocyclic group or a fused ring formed by the combination thereof.