The present specification relates to a compound represented by Chemical Formula 1, an organic optoelectronic diode and a display device.

The present specification relates to a double spiro structure compound, and an organic light emitting device comprising the same.

Described herein are compounds, or pharmaceutically acceptable salts thereof, of the following formula: ##STR00001## The compounds are useful for treating inflammatory and autoimmune diseases.

An organic compound that emits red light having a long wavelength and that is represented by formula [1] below. In the formula [1], R.sub.1 to R.sub.24 are each independently selected from a hydrogen atom or a substituent. ##STR00001##

Methods, systems, and apparatus for monitoring and controlling electronic devices using wired and wireless protocols are disclosed. The systems and apparatus may monitor their environment for signals from electronic devices. The systems and apparatus may take and disambiguate the signals that are received from the devices in their environment to identify the devices and associate control signals with the devices. The systems and apparatus may use communication means to send control signals to the identified electronic devices. Multiple apparatuses or systems may be connected together into networks, including mesh networks, to make for a more robust architecture.

The present disclosure provides certain tetrahydro-1H-cyclopenta[cd]indene compounds that are Hypoxia Inducible Factor 2α (HIF-2α) inhibitors and are therefore useful for the treatment of diseases treatable by inhibition of HIF-2α. Also provided are pharmaceutical compositions containing such compounds and processes for preparing such compounds.

Chiral spirobiindane skeleton compound and preparation method thereof is disclosed in the present invention. The spirobiindane skeleton compound of the present invention having the structure formula of I or I′; the preparation method for synthesizing the spirobiindane skeleton compound of the present invention comprising the following steps: in the presence of solvent and catalysts, the structure formula compound III reacted through intramolecular Friedel-Crafts reaction to obtain the compound of formula I; the catalyst is a Browsteric acidor Lewis acid. The preparation method of chiral fused spirobiindane skeleton compound of the present invention does not need to adopt chiral starting materials or chiral resolving agents, does not require chiral resolving steps, is simple in method, is simple in post-treatment, and is economic and environment friendly. High product yield, high product optical purity and chemical purity. The catalyst for the asymmetric reaction is obtained from the chiral spirobiindane skeleton ligand of the present invention, under the catalytic reagent of transition metal, the catalyzed hydrogenation reaction can arrive at a remarkable catalytic effect with a product yield of >99%, and a product ee value of up to >99%. ##STR00001##

Described is a polyimide prepared from a diamine containing a spiro or cardo group in a molecule structure, wherein the dimensional stability of the polyimide can be improved at a high temperature, and thus the polyimide can provide a polyimide film useful for a flexible substrate.

A condensed cyclic compound represented by Formula 1: ##STR00001##
wherein, in Formula 1, X.sub.11, X.sub.12, and R.sub.11 to R.sub.24 are the same as described in the specification.

The present disclosure provides an organic light emitting device having improved driving voltage, efficiency and life time.