Catch it if you can! Redox‐active resorcin[4]arenecavitands with quinone walls can be reversibly reduced to the hydroquinone form, influencing their host–guest complexation strength. Specifically, a top‐covered triptycenequinone cavitand forms kinetically stable complexes with cycloalkanes; this complexation is weaker in the reduced hydroquinone form.
Imaging film and film-forming composition, method for recording electromagnetic radiation, quinone compounds and method of synthesizing quinone compounds
申请人:ENERGY CONVERSION DEVICES, INC.
公开号:EP0098020A2
公开(公告)日:1984-01-11
Imaging films and film-forming compositions are provided which include a reducible tellurium compound, a reductant precursor, a source of labile hydrogen incorporated in a matrix. The reductant precursors are of the formulae
or
where Y1 is alkoxy, Y2 is chloro or alkoxy and Y3 is hydrogen, chloro or alkoxy.
Methods are provided for synthesizing the reductant precursors.
Process for the production of an aromatic hydrazo compound
申请人:TOYO INK MANUFACTURING CO., LTD.
公开号:EP0391606A1
公开(公告)日:1990-10-10
A process for the production of an aromatic hydrazo compound, which comprises carrying out catalytic reduction of an aromatic nitro compound with hydrogen in an alkali metal hydroxide aqueous solution in the presence of a noble metal catalyst at a high temperature under a high pressure, wherein the catalytic reduction is carried out by using, as a hydrogen-donating solvent, a cyclic hydrocarbon formed of 1 to 4 aromatic rings as a basic skeleton and having hydrogen atoms attached to at least two places of the aromatic ring(s).
Syntheses, electrochemistry and molecular modeling of N,N′-dicyanoquinonediimine (DCNQI) derivatives of substituted 1,4-anthracenediones: precursors for organic metals.
作者:Elena Barranco、Nazario Martín、José L. Segura、Carlos Seoane、Pilar de la Cruz、Fernando Langa、Araceli Gonzalez、José M. Pingarrón
DOI:10.1016/s0040-4020(01)80405-1
日期:1993.5
The title compounds (10) have been obtained from the corresponding 1,4-anthracenedione derivatives (3), prepared by different synthetic routes, by reaction with bis(trimethylsilyl)carbodiimide (BTC). The cyclic voltammetry of these compounds (3 and 10) reveals the presence of two reduction waves to the corresponding anion-radical and dianion. The acceptor ability of compounds 10 can be modulated by the presence of substituents on the DCNQI ring. The syn/anti isomers have been studied by molecular mechanics and the results are in good agreement with the H-1-NMR high resolution spectral data.