Compound for organic electronic element, organic electronic element using the same, and an electronic device thereof

A compound represented by Formula 1

• wherein:
• L1 and L2 are independently selected from the group consisting of a single bond;
• a C6-C60 arylene group;
• a fluorenylene group;
• a C2-C60 heterocyclic group including at least one heteroatom of O, N, S, Si or P,
• Ar1 and Ar2 are independently selected from the group consisting of 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,
• Ra and Rb are independently selected from the group consisting of 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 C1-C50 alkyl group;
• a C2-C20 alkenyl group;
• a C2-C20 alkynyl group;
• a C1-C30 alkoxyl group;
• and a C6-C60 aryloxy group;
• a plurality of adjacent groups thereof may be bonded to each other to form a spirobifluorene group,
• R1 and R2 are the same or different from each other and are independently selected from the group consisting of hydrogen;
• deuterium;
• 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;
• and a C6-C60 aryloxy group;
• and a plurality of adjacent groups thereof may be bonded to each other to form a ring,
• a is an integer of 0 to 4, b is an integer of 0 to 2,
• Ara is a C6-C60 arylene group, and
• Ak is a C1-C50 alkyl group;
• or a C3-C60 aliphatic ring,
• wherein the aryl group, arylene group, heterocyclic group, fluorenyl group, fluorenylene group, aliphatic ring group, fused ring group, alkyl group, alkenyl group, alkynyl 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 aliphatic ring;
• a C7-C20 arylalkyl group;
• a C8-C20 arylalkenyl group;
• and a C7-C20 alkylaryl group, and the hydrogen of these substituents may be further substituted with one or more deuterium, and the substituents may be bonded to each other to form a saturated or unsaturated ring, wherein the term ‘ring’ means a C3-C20 aliphatic ring or a C6-C60 aromatic ring or a C2-C60 heterocyclic group or a fused ring formed by the combination thereof.