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Citation: Ran Ruicheng, Jiang Shuojian, Shen Ji. A LEWIS ACID CATALYST SUPPORTED BY POLYMER POLYSTYRENE-TITANIUM TETRACHLORIDE COMPLEX[J]. Chinese Journal of Applied Chemistry, ;1985, 2(1): 29-33. shu

A LEWIS ACID CATALYST SUPPORTED BY POLYMER POLYSTYRENE-TITANIUM TETRACHLORIDE COMPLEX

1.
1. Dep. of Chem., Beijing University;
2.
2. Beijing Chemical Fiber College

Received Date: 18 July 1984
Available Online: 4 October 1984

Polystyrene,cross-linked with 5-7% of divinylbenzene,is combined withTi Cl₄ in CS₂ to form a stable complex containing 4.5% of chlorine. The TiCl₄ complexed in the polymer is resistant to water and can store in air at least for one year. The Lewis acid complex catalyst can be used to catalyze the conversion of aromatic aldehydes,carboxylic acids,ketones and some alcohols into corresponding acetals,esters,ketals and ethers in hish yield. The complex is also effective for the Friedel-Crafts alkylation reaction. For these reactions the title catalyst can be used repeatedly 4-5 times.
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