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diketones

diketones Sentence Examples

  • The 1 5 diketones of this type, when heated with aqueous ammonia, form pyridine derivatives.

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  • Diketones.

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  • -The diketones contain two carbonyl groups, and are distinguished as a or I.

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  • 2 diketones, 1 3 or 1.3 diketones, y or I.

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  • 4 diketones, &c., according as they contain the groupings -CO CO-, -CO.

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  • 1.5 diketones have been prepared by L.

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  • Claisen by condensing ethoxymethylene aceto-acetic esters and similar compounds with /3-ketonic esters and with 1.3 diketones.

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  • On the general reactions of the 1.5 diketones, see E.

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  • 5 diketones of the type inset, when heated with ammonia, also yield pyridine derivatives.

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  • The thiophen homologues are best prepared by heating the 1.4 diketones with phosphorus pentasulphide, the diketones reacting in the enolic form: Thiotenol, or oxymethyl thiophene, is prepared by heating laevulinic acid with phosphorus pentasulphide (W.

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  • -The diketones contain two carbonyl groups, and are distinguished as a or I.

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  • 2 diketones, 1 3 or 1.3 diketones, y or I.

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  • 4 diketones, &c., according as they contain the groupings -CO CO-, -CO.

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  • 1.5 diketones have been prepared by L.

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  • Claisen by condensing ethoxymethylene aceto-acetic esters and similar compounds with /3-ketonic esters and with 1.3 diketones.

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  • The 1 5 diketones of this type, when heated with aqueous ammonia, form pyridine derivatives.

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  • On the general reactions of the 1.5 diketones, see E.

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  • 5 diketones of the type inset, when heated with ammonia, also yield pyridine derivatives.

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  • The thiophen homologues are best prepared by heating the 1.4 diketones with phosphorus pentasulphide, the diketones reacting in the enolic form: Thiotenol, or oxymethyl thiophene, is prepared by heating laevulinic acid with phosphorus pentasulphide (W.

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