| 摘要 |
A process for the preparation of alkaline earth metal salts of beta -diketo compounds by using one mole of a powdery or granular alkaline earth metal compound and at least 2.04 moles of an aliphatic beta -diketo compound. The reaction may be conducted either by feeding both components into a reactor continuously or intermittently or by adding either of the components to the other continuously or intermittently. The maximum reaction temperature may reach 50 DEG C or above, and the reaction mixture may be aged, followed by drying in an inert gas atmosphere at 100 to 180 DEG C. The alkaline earth metal compound may be calcium hydroxide, magnesium hydroxide or barium hydroxide, while the aliphatic beta -diketo compound may be a compound represented by general formula (1), particularly, acetoacetic ester or acetylacetone. The process can give high-quality and stable alkaline earth metal salts of beta -diketo compounds.
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