Unsaturated carboxylic esters with organometallic

Both oxides of silver, Ag20 and AgO, have been used for aldehyde oxidations. The silver]I) reagent has mainly been applied in transformations of aliphatic [83] and aromatic aldehydes [84], less so in oxidations of organometallic complexes bearing an aldehyde function [85] or a,P-unsaturated compounds [86]. Use of the silver(II) oxide is less common [70, 87], probably due to its limited availability and high cost Cyanide ions catalyze this oxidation in methanol leading to carboxylic acids (and not to esters as compared with manganese) [70]. In reactions with a,p-unsaturated aldehydes, double bond isomerizations have been observed [70]. Less common silver re-... 

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