A light emitting element includes a polycyclic compound having a B-N-B structure and including a specific substituent in an emission layer, thereby showing high efficiency and long-life characteristics.

Embodiments provide a polycyclic compound and a light emitting element that includes the polycyclic compound. The light emitting element includes a first electrode, a second electrode disposed on the first electrode, and at least one functional layer disposed between the first electrode and the second electrode, wherein the at least one functional layer includes the polycyclic compound, which is represented by Formula 1. Formula 1 is defined in the specification. The light emitting element exhibits a long service life.

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Embodiments provide a condensed cyclic compound, a light-emitting device including the condensed cyclic compound, and an electronic apparatus including the light-emitting device. The light-emitting device includes a first electrode, a second electrode facing the first electrode, an interlayer between the first electrode and the second electrode and including an emission layer; and the condensed cyclic compound. The condensed cyclic compound is represented by Formula 1:

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The description of Formula 1 is provided in the specification.

Provided is a light emitting element includes a polycyclic compound in which an electron donor substituent, which may increase the photoluminescence quantum yield (PLQY) and oscillator strength (f), is introduced at the para-position of a boron atom, thereby exhibiting high efficiency and long service life characteristics.

Methods of treating anti-inflammatory conditions through the use of boron-containing small molecules are disclosed.

The present invention pertains to a method for producing a copolymer of ethylene and an allyl monomer having a polar group represented by general formula (1), or a copolymer of ethylene, an allyl monomer having a polar group represented by general formula (1), and other monomers, wherein the copolymer is produced in the presence of a boron compound having a boron-hydrogen bond or a boron-carbon bond (for example, a compound represented by general formula (2)) by using a metal complex represented by general formula (C1) as a polymerization catalyst (the symbols in the formulas are as described in the description). According to the present invention, a copolymer of ethylene and an allyl monomer can be efficiently produced with high catalytic activity, wherein the copolymer has a polar group and can be used in various applications. ##STR00001##

A light emitting diode of an embodiment includes a first electrode, a second electrode, and at least one functional layer between the first electrode and the second electrode, wherein the at least one functional layer includes at least one selected from among a polycyclic compound represented by Formula 1 and a compound represented by Formula E-1.

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An organic electroluminescence device inducting a cathode, an anode, and an emitting layer disposed between the cathode and the anode, wherein the emitting layer includes a compound represented by the following formula (1) and one or more compounds selected from the group consisting of compounds represented by each of formulas (11), (21), (31), (41), (51), (61), (71) and (81). In the formula (1), at least one of R.sub.1 to R.sub.8 is a deuterium atom,

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Compounds which are oxadiazaborole derivatives are disclosed, including compounds of the following genus:

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The compounds are inhibitors of hematopoietic cell kinase (HCK) and exhibit anti-fibrotic and anti-proliferative effects. They are useful in the treatment of a variety of disorders, including a fibrosis or a fibrotic disease, such as renal fibrosis.

A light emitting element that includes a first compound represented by a specific chemical formula in which an ortho-type or kind penta-phenyl group is bonded to a fused polycyclic compound including at least one boron atom and a heteroatom is provided. The light emitting element has a long-lifetime.