Organic electronic element comprising a compound for organic electronic element and an electronic device thereof

A compound represented by Formula 1:

• wherein:
• R1, R2 and R3 are each independently selected from the group consisting of hydrogen;
• deuterium;
• halogen;
• and a C1˜C60 alkyl group,
• R4 is hydrogen;
• deuterium;
• a C6˜C60 aryl group;
• or C6˜C60 aryl group substituted with deuterium,
• L1 is a single bond;
• or C6˜C60 arylene group,
• Ar1 is a C6˜C60 aryl group,
• a is an integer of 0 to 5, b is an integer of 0 to 6, c is an integer of 0 to 4, d is an integer of 0 to 7,
• wherein the alkyl group, aryl group or arylene group may be substituted with one or more substituents selected from the group consisting of deuterium;
• halogen;
• silane group;
• siloxane group;
• boron group;
• germanium group;
• cyano group;
• nitro group;
• C1-C20 alkylthio group;
• C1-C20 alkoxy group;
• C1-C20 alkyl group;
• C2-C20 alkenyl group;
• C2-C20 alkynyl group;
• C6-C20 aryl group;
• C6-C20 aryl group substituted with deuterium;
• a fluorenyl group;
• C2-C20 heterocyclic group;
• C3-C20 cycloalkyl group;
• C7-C20 arylalkyl group;
• and C8-C20 arylalkenyl group;
• and 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 combination thereof.