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Ketocarboxylic acid amides

If, for example, an a-hydrogen is attached to the carbon atom of the iminium bond, transformation into the corresponding enamine (CXXV) occurs readily, which results in subsequent reaction of CXXV with the starting iminium chloride. Since attack on nitrogen is not possible self-condensation via attack on carbon has been observed, and jS-ketocarboxylic acid amides CXXVI are obtained in good yield... [Pg.88]

The reaction of iminium chlorides with diazonium salts occurs via addition to the diazo group. For example, reaction of an iminium chloride CLXXVII with p-nitrophenyldiazonium fiuoroborate yields the aryl-hydrazone of an a-ketocarboxylic acid amide CLXXVIII... [Pg.101]

Acylation with carboxylic acid esters N-Acylation of j5-ketocarboxylic acid amides C-Acylation of diacylamines... [Pg.371]

Sodium hydride C-Acylation with diacylamines Ketocarboxylic acid amides from dicarboxylic acid imides... [Pg.178]

Without additional reagents N-Heterocyclic a-ketocarboxylic acid amides from o-formyl-N-oxides and isonitriles... [Pg.490]

P-Chloro-a-ketocarboxylic acid amides from dichloroacetic acid amides and aldehydes Darzens condensation... [Pg.443]

See other pages where Ketocarboxylic acid amides is mentioned: [Pg.23]    [Pg.184]    [Pg.240]    [Pg.89]    [Pg.263]    [Pg.265]    [Pg.271]    [Pg.271]    [Pg.277]    [Pg.474]    [Pg.92]    [Pg.249]    [Pg.253]    [Pg.255]    [Pg.261]    [Pg.261]    [Pg.261]    [Pg.269]    [Pg.349]    [Pg.460]    [Pg.281]    [Pg.283]    [Pg.286]    [Pg.448]    [Pg.179]    [Pg.212]    [Pg.218]    [Pg.223]    [Pg.261]    [Pg.365]    [Pg.411]    [Pg.45]    [Pg.49]    [Pg.86]    [Pg.139]    [Pg.220]   


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A-ketocarboxylic acid amides

Ketocarboxylic acid amides carboxylic acids

Ketocarboxylic acids

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