200872results about "Organic chemistry" patented technology

Provided are a novel aromatic amine derivative having a specific structure and an organic electroluminescence device in which an organic thin layer comprising a single layer or plural layers including a light emitting layer is interposed between a cathode and an anode, wherein at leas one layer of the above organic thin layer contains the aromatic amine derivative described above in the form of a single component or a mixed component. Thus, the organic electroluminescence device is less liable to be crystallized in molecules, improved in a yield in producing the organic electroluminescence device and extended in a lifetime.

A material for organic electroluminescence devices for use as a host material in combination with at least one phosphorescent metal complex, which comprises a compound having a specific heterocyclic structure, is described. Also described is an organic electroluminescence device having an anode, a cathode and an organic thin film layer having one or more layers. The organic thin film layer is interposed between the anode and cathode and has a light emitting layer containing a host material in combination with at least one phosphorescent metal complex. At least one layer of the organic thin film layer contains the material for organic electroluminescence devices. The material for organic electroluminescence devices provides an organic electroluminescence device which has a high emitting efficiency, causes little pixel defects, is excellent in heat resistance, and show a long lifetime.

Azatriphenylene derivatives and their use in the electron-transporting layer of an electroluminescent device that comprises an anode, a spaced-apart cathode, and at least one electron-transporting layer disposed between the spaced-apart anode and cathode. Such EL devices provide lower drive voltage, improved power efficiency, and longer operational lifetime.

New thiol and disulfide-containing maytansinoids bearing a mono or di-alkyl substitution on the α-carbon atom bearing the sulfur atom are disclosed. Also disclosed are methods for the synthesis of these new maytansinoids and methods for the linkage of these new maytansinoids to cell-binding agents. The maytansinoid-cell-binding agent conjugates are useful as therapeutic agents, which are delivered specifically to target cells and are cytotoxic. These conjugates display vastly improved therapeutic efficacy in animal tumor models compared to the previously described agents.

Thiazolo-, oxazolo- and selenazolo[4,5-c]quinolin-4-amines and analogs thereof are described including methods of manufacture and the use of novel intermediates. The compounds are immunomodulators and induce cytokine biosynthesis, including interferon and/or tumor biosynthesis, necrosis factor, and inhibit the T-helper-type 2 immune response. The compounds are further useful in the treatment of viral and neoplastic diseases.

An organic electroluminescent device including: an anode, a cathode, an emitting layer formed of an organic compound and interposed between the cathode and the anode, and two or more layers provided in a hole-injecting/hole-transporting region between the anode and the emitting layer; of the layers which are provided in the hole-injecting/hole-transporting region, a layer which is in contact with the emitting layer containing a compound represented by the formula (1); and of the layers which are provided in the hole-injecting/hole-transporting region, a layer which is interposed between the anode and the layer which is in contact with the emitting layer containing an amine derivative represented by the formula (2).

Provided are an organic electroluminescence device, which shows high luminous efficiency, is free of any pixel defect, and has a long lifetime, and a material for an organic electroluminescence device for realizing the device. The material for an organic electroluminescence device is a compound having a n-conjugated heteroacene skeleton crosslinked with a carbon atom, nitrogen atom, oxygen atom, or sulfur atom. The organic electroluminescence device has one or more organic thin film layers including a light emitting layer between a cathode and an anode, and at least one layer of the organic thin film layers contains the material for an organic electroluminescence device.

Provided are a polycyclic compound of a compound having such a structure that two benzene rings bond to a central benzene ring each other to form a fused ring and another fused ring bonds to a terminal thereof, and an organic electroluminescence device including one or more organic thin film layers containing a light emitting layer between a cathode and an anode, in which at least one of the organic thin film layers includes the polycyclic compound of the present invention. The organic electroluminescence device has high luminous efficiency, no defect in pixels, and long lifetime. In addition, provided is a polycyclic compound realizing the organic electroluminescence device.

The invention discloses novel thiobenzamide compounds. The structure of the thiobenzamide compounds is shown as a general formula I, wherein R1 is selected from Cl or Br; R2 is selected from methyl, isopropyl or allyl; and R3 is selected from H or Cl. The compounds shown in the general formula I have excellent insecticidal activity, and can be used for the control on common pests in agriculture and forestry, especially the control on resistant pests.

Chemical syntheses and medical uses of novel inhibitors of the gastric H⁺, K⁺-ATPase for the treatment and/or management of duodenal ulcers, heartburn, acid reflux, other conditions mediated by gastric acid secretion and/or psoriasis are described.

The invention relates to an N-substituted dioxazine compound as well as a preparation method and application thereof. The N-substituted dioxazine compound has the following chemical structure general formula (I), wherein Ar in the chemical structure general formula (I) is a benzene ring, a naphthalene ring, and a pyridine or pyrimidine ring system. The compound is prepared with the following two steps: (1) taking 2-(benzyl)-7-benzindene[1,2-e][1,3-4] dioxazine-2,4a(3H,5H)-dicarboxylic acid-4a-methoxycarbonyl group and hydrogen as raw materials, taking Pd/C in solvent a as catalyst a, and carrying out hydrogenation, thus obtaining an intermediate B after reaction is finished; (2) taking (carbonylchloride) (aryl) methyl carhamate as the intermediate C, and carrying out (carbonylchloride) (aryl) methyl carhamate with the intermediate B obtained in the step (1) in the presence of a catalyst b in the solvent b; and obtaining the product N-substituted dioxazine compound. Compared with the prior art, the insecticidalactivity on the armyworm by the N-substituted dioxazine compound is 80-100%.

The invention relates to compounds of formula

wherein

• R¹, R², and R³ are as defined herein and to a pharmaceutically suitable acid addition salts thereof for the treatment of CNS disorders.

Provided are an organic electroluminescence device and an aromatic amine derivative for realizing the device. The aromatic amine derivative improves the luminous efficiency of an organic electroluminescence device using the derivative, and its molecules hardly crystallize. The organic electroluminescence device has an organic thin film layer composed of one or a plurality of layers including at least a light emitting layer, the organic thin film layer being interposed between a cathode and an anode, and at least one layer of the organic thin film layer, especially a hole transporting layer contains the aromatic amine derivative alone or as a component of a mixture, so the organic electroluminescence device can be produced in improved yield, and has a long lifetime.

Disclosed herein is a composition comprising: (A) a lubricant or a hydrocarbon fuel; (B) at least one hydroxy carboxylic acid ester or hydroxy polycarboxylic acid ester having the generic formula defined herein; and (C) at least one phosphorus-containing additive.