1,3-Butanedione, 1-phenyl derivative

Europium chelates derived from benzoylacetone (1-phenyl-l,3-butanedione) have been prepared by the reaction of europium (III) chloride with benzoylacetone in the presence of organic bases " and by the reaction between sodium benzoylacetonate and europium(III) chloride. t The procedure described here employs the reaction between europium(III) chloride and benzoylacetone in ethanol-... 

Methylbenzoylacetone (2-methyl-1-phenyl-1,3-butanedione) 400 401 The calculated amount of sodium wire is added to benzoylacetone dissolved in six times its amount of anhydrous ether. This precipitates the sodio derivative as a sulfur-yellow powder. For further reaction402 a portion (3 g) of this derivative is dried over phosphoric oxide and heated for 4 h under reflux with methyl iodide (1.9 g) in anhydrous acetone (50 ml). The acetone is then distilled off and the residue is taken up in ether, shaken with water, dried, and fractionated, giving 88% of the product, b.p. 130-134°/11 mm. 

The template condensation of a-diketones with 1,3-propanediamine in the presence of divalent iron, cobalt, nickel, or copper leads to 14-membered-ring macrocyclic complexes containing two a-diimines. A number of complexes of this class, derived from 2,3-butanedione,1-3 1-phenyl-1,2-propanedione,4,5 benzil,6 and substituted benzils,5 have been prepared. Preparation of the Ni(II)... 

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