ISSN:
0570-0833
Schlagwort(e):
Free radicals
;
Radical ions
;
Electrosorption
;
Selectivity
;
Electrochemistry
;
Chemistry
;
General Chemistry
Quelle:
Wiley InterScience Backfile Collection 1832-2000
Thema:
Chemie und Pharmazie
Notizen:
In many cases the electrolytic synthesis of organic compounds is rather unselective. This is because the primary radical ions and/or radicals are very often so reactive that they are able to react competitively with several of the different species present in the electrolyte. The aim is to increase the selectivity by rationally altering the process parameters; this demands a knowledge, inter alia, of electrosorption effects and of the relationships between mass transfer and chemical reaction, at or in front of the electrodes (in the so-called reaction layer). Four examples will be used to illustrate this theme: 1The anodic synthesis of triarylsulfonium salts,2The addition of anodically generated N3-radicals to olefins, producing “monomeric” 1,2-diazides and “dimeric” 1,4-diazides,3The cathodic synthesis of optically active 1-(2-pyridyl)ethanol,4The synthesis of 1,2- and 1,4-diol ethers by anodic oxidation of vinyl compounds in alcoholic solutions.
Zusätzliches Material:
12 Ill.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1002/anie.198202561
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