An easy one-step photocatalytic synthesis of 1-aryl-2-alkylbenzimidazoles by platinum loaded TiO2 nanoparticles under UV and solar light
作者:K. Selvam、M. Swaminathan
DOI:10.1016/j.tetlet.2011.04.090
日期:2011.6
One-potsynthesis of disubstituted benzimidazoles from N-substituted 2-nitroanilines or 1,2-diamines with 3–12 nm-sized platinum particles loaded on the TiO2 using solar and UV-A light is described. 1-Aryl-2-alkylbenzimidazoles from 2-nitrodiphenylamines are formed by combined redox photocatalyticreaction, condensation and catalytic dehydrogenation on Pt-TiO2. In case of diamines, this reaction is
Tropomyosin-related kinase inhibitors (Trk inhibitors) are small molecule compounds useful in the treatment of disease. Trk inhibitors can be used as pharmaceutical agents and in pharmaceutical compositions. Trk inhibitors are useful in the treatment of inflammatory diseases, autoimmune disease, defects of bone metabolism and/or cancer, and are particularly useful in the treatment of osteoarthritis (OA), pain, and pain associated with OA. Trk inhibitors are also useful for inhibiting tropomyosin-related kinase A (TrkA), tropomyosin-related kinase B (TrkB), tropomyosin-related kinase C (TrkC), and/or c-FMS (the cellular receptor for colony stimulating factor-1 (CSF-1)).
an atmosphere of carbonmonoxide catalyses the reaction of azobenzene derivatives and primary alcohols or their esters to give 2-substituted 1-phenylbenzimidazoles. Substituents in the azobenzene derivatives have a marked effect on the product yields. Where isomer formation can occur, all possible isomers of the product are usually formed. In non-symmetrically substituted azobenzene derivatives, ortho-metallation
Novel organic electroluminescent compounds and organic electroluminescent device using the same
申请人:Gracel Display Inc.
公开号:EP2067767A1
公开(公告)日:2009-06-10
The present invention relates to novel organic electroluminescent compounds, and organic electroluminescent devices comprising the same. Specifically, the organic electroluminescent compounds according to the invention are represented by Chemical Formula (1):
wherein, total number of carbons in R3-Ar3- and R4-Ar4- is from 21 to 60.
The electroluminescent compounds according to the present invention are green electroluminescent compounds, of which the luminous efficiency and device lifetime have been maximized.
The subject invention relates to novel P2X
3
receptor antagonists that play a critical role in treating disease states associated with pain, in particular peripheral pain, inflammatory pain, or tissue injury pain that can be treated using a P2X
3
receptor subunit modulator.