### 水相法合成水杨酸类二茂钛衍生物与取代基效应及酸度影响的研 究

1. 陕西师范大学化学系.西安(710062)
• 发布日期:2000-03-15

### Preparation of titanocene of substituted salicylic complexes in aqueous medium and substituent effects and influences of acidity

Gao Ziwei

1. Shanxi Normal Univ, Dept Chem.Xian(710062)
• Published:2000-03-15

Two types of complexes were prepared at different pH's by the reaction of bicyclopentadienyl dichlorotitanium-acetylacetone complex with sodium of substituted salicylic acid in aqueous medium. All of complexes were characterized by elementary, IR and ^1H NMR analysis. The relationship between substituent and synthesis of titanocene of substituted salicylic complexes, and their property could be explained by Hammett equation. The results show that Hammett σ value has a great influence on the reaction. The larger the σ value of substituent, the easier the product transforms from A form into B form. And the colour, decomposition temperature, IR and ^1H NMR of the products have a certain relation to their substituent.