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Electroorganie Synthesis, 55 [1] . Influences on the Selectivity of the Kolbe versus the Non‐Kolbe Electrolysis in the Anodic Decarboxylation of Carboxylic Acids
Author(s) -
Klocke Elisabeth,
Matzeit Agnes,
Gockeln Marianne,
Schäfer Hans J.
Publication year - 1993
Publication title -
chemische berichte
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 0009-2940
DOI - 10.1002/cber.19931260720
Subject(s) - chemistry , decarboxylation , electrolysis , alkoxy group , solvent , anode , medicinal chemistry , methanol , alkyl , organic chemistry , catalysis , electrode , electrolyte
The anodic decarboxylation of 3‐oxanonanoic acid ( 2a ) and 3‐oxapentadecanoic acid ( 2b ) in methanol leads exclusively to products of the non‐Kolbe electrolysis. The influence of co‐electrolysis, solvent, current density, degree of neutralization and chain length of the alkoxy group on the anodic decarboxylation of 2a, b have been investigated. An extended alkyl chain in the alkoxy group, coelectrolysis with long‐chain fatty acids, ethanol or dimethylformamide as solvent, and a high current density favor the Kolbe coupling against the non‐Kolbe electrolysis.