[EN] CHEMICAL COMPOUNDS<br/>[FR] COMPOSES CHIMIQUES
申请人:ASTRAZENECA AB
公开号:WO2004011410A1
公开(公告)日:2004-02-05
Compounds of formula (I):wherein variable groups are as defined within; for use in the inhibition of 11βHSD1 are described.
式(I)的化合物:其中变量基团如定义内;用于抑制11βHSD1。
ELECTROCHROMIC TWO-CORE VIOLOGEN DERIVATIVES AND OPTICAL ARTICLES CONTAINING THEM
申请人:ESSILOR INTERNATIONAL (COMPAGNIE GENERALE D'OPTIQUE)
公开号:US20160221949A1
公开(公告)日:2016-08-04
The present invention relates to a group of novel electrochromic materials. More specifically, it relates to electrochromic materials having two-core viologens and the use of these two-core viologens as a variable transmittance medium for the manufacture of an optical article, such as an ophthalmic lens.
Pyrylogens: Synthesis, Structural, Electrochemical, and Photophysical Characterization of a New Class of Electron Transfer Sensitizers
作者:Edward L. Clennan、Chen Liao、Erambo Ayokosok
DOI:10.1021/ja802343v
日期:2008.6.18
The synthesis and photophysicalproperties of a new series of dicationic electron transfer sensitizers have been reported. These new materials, pyrylogens, are hybrids of pyrylium cations and Viologen dications. Electron transfer reactions of neutral organic substrates using these new sensitizers generate radical-cation/radical-cation pairs whose repulsive (repellent) interaction is designed to compete
Syntheses and UV/Vis-Spectroscopic Properties of Hydrophilic 2-, 3-, and 4-Pyridyl-Substituted Solvatochromic and Halochromic PyridiniumN-Phenolate Betaine Dyes as New Empirical Solvent Polarity Indicators
Syntheses and negative solvatochromism of nine new hydrophilic 2-, 3-, and 4-pyridyl-substituted pyridinium N-phenolate betainedyes 3−11 are described. These were produced in order to obtain zwitterionic dyes better soluble in water and other aqueous media (such as binary water/solvent mixtures, aqueous ionophore solutions) than the rather hydrophobic standard betainedyes 1 and 2, which have been
A tandem cross-coupling reaction of ketones with aldehydes has been achieved using barium hydride or isopropoxide as a promoter, in which barium enolates are generated in situ and then three successive reactions (aldol reaction-β-elimination-Michael addition) follow; this one-pot process is effective for obtaining symmetrical 1,5-diketones in good yields.