Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Miscellaneous Electrochemical Reactions

Miscellaneous Physical Chemistry. A kinetic study has been made of the electrochemical reduction of /8-carotene. The photoelectron quantum yield spectrum and photoelectron microscopy of /3-carotene have been described. Second-order rate constants for electron-transfer reactions of radical cations and anions of six carotenoids have been determined. Electronic energy transfer from O2 to carotenoids, e.g. canthaxanthin [/8,/3-carotene-4,4 -dione (192)], has been demonstrated. Several aspects of the physical chemistry of retinal and related compounds have been reported, including studies of electrochemical reduction, the properties of symmetric and asymmetric retinal bilayers, retinal as a source of 02, and the fluorescence lifetimes of retinal. Calculations have been made of photoisomerization quantum yields for 11-cis-retinal and analogues and of the conversion of even-7r-orbital into odd-TT-orbital systems related to retinylidene Schiff bases. ... [Pg.187]

Miscellaneous reactions which involve the cyclization of one component to an aziridine by a polar reaction include the electrochemical oxidative cyclization of / -(p-toluenesulfonyl) aminomalonates to 2,2-bis(carbomethoxy)-JV-(p-toluenesulfonyl)aziridines <88CL1065> and the bromonium ion-mediated cyclization of JV-propargyl acetamides to 2-(2-bromoalkylidene)aziridines... [Pg.51]

Electrochemical synthesis [76,244-247] Miscellaneous synthesis [248,249] a. High temperature control, high activity, rapid chemical reaction and less processing time with low processing time a. Particle size and shape under control b. Bulk processing is limited... [Pg.471]


See other pages where Miscellaneous Electrochemical Reactions is mentioned: [Pg.171]    [Pg.171]    [Pg.73]    [Pg.75]    [Pg.373]    [Pg.103]    [Pg.121]    [Pg.103]    [Pg.105]    [Pg.150]    [Pg.43]    [Pg.23]    [Pg.23]    [Pg.847]    [Pg.377]    [Pg.268]    [Pg.121]   


SEARCH



Electrochemical reactions

Miscellaneous reactions

© 2024 chempedia.info