The compound represented by formula (1): ##STR00001##
wherein A, B, R.sup.1, and R.sup.2 are as defined in the description, provides organic electroluminescence (EL) devices having a high emission efficiency when operated at low voltage and a long lifetime and electronic devices including such organic EL devices.

The compound represented by formula (1): ##STR00001##
wherein A, B, R.sup.1, and R.sup.2 are as defined in the description, provides organic electroluminescence (EL) devices having a high emission efficiency when operated at low voltage and a long lifetime and electronic devices including such organic EL devices.

Compounds and methods related to the prevention and treatment of diseases and conditions, some of which are facilitated by melanogenesis are disclosed. Specifically, the present subject matter includes a series of compounds and compositions and their use for anti-melanogenic and antioxidant activity. This subject matter also includes the treatment of skin disorder due to acne vulgaris and related inflammatory and post inflammatory hyperpigmentation. Methods for synthesizing contemplated compounds are also disclosed.

Compounds and methods related to the prevention and treatment of diseases and conditions, some of which are facilitated by melanogenesis are disclosed. Specifically, the present subject matter includes a series of compounds and compositions and their use for anti-melanogenic and antioxidant activity. This subject matter also includes the treatment of skin disorder due to acne vulgaris and related inflammatory and post inflammatory hyperpigmentation. Methods for synthesizing contemplated compounds are also disclosed.

An aqueous solvent composition is provided, comprising a nucleophilic component having one or more sterically unhindered primary or secondary amine moieties, a Brønsted base component having one or more basic nitrogen moieties, a water-soluble organic solvent, and water. A biphasic composition is provided, comprising one or more carbamate compounds, one or more conjugate acids of Brønsted base, a water-soluble organic solvent, and water. A biphasic CO.sub.2 absorption process is also provided, utilizing the biphasic solvent composition.

An aqueous solvent composition is provided, comprising a nucleophilic component having one or more sterically unhindered primary or secondary amine moieties, a Brønsted base component having one or more basic nitrogen moieties, a water-soluble organic solvent, and water. A biphasic composition is provided, comprising one or more carbamate compounds, one or more conjugate acids of Brønsted base, a water-soluble organic solvent, and water. A biphasic CO.sub.2 absorption process is also provided, utilizing the biphasic solvent composition.

The present invention relates to an electroluminescence device having high luminous efficiency (for example, external quantum efficiency) and high durability and causing little chromaticity shift after device deterioration. The present invention also relates to an organic electroluminescence device material comprising a substrate having thereon a pair of electrode and at least one organic layer between the electrodes, the organic layer containing a light emitting layer, wherein the light emitting layer contains a metal complex having a group represented by formula (I). ##STR00001##

The present invention relates to an electroluminescence device having high luminous efficiency (for example, external quantum efficiency) and high durability and causing little chromaticity shift after device deterioration. The present invention also relates to an organic electroluminescence device material comprising a substrate having thereon a pair of electrode and at least one organic layer between the electrodes, the organic layer containing a light emitting layer, wherein the light emitting layer contains a metal complex having a group represented by formula (I). ##STR00001##

Disclosed are a novel organic compound, and an organic electroluminescent element having improved characteristics, such as luminous efficiency, driving voltage, and lifespan, by containing the novel organic compound in one or more organic material layers.

Disclosed are a novel organic compound, and an organic electroluminescent element having improved characteristics, such as luminous efficiency, driving voltage, and lifespan, by containing the novel organic compound in one or more organic material layers.