PROCESS FOR SYNTHESIZING A MULTICOMPONENT ACIDIC CATALYST COMPOSITION BY AN ORGANIC SOLUTION METHOD

摘要

ABSTRACT OF THE DISCLOSUREA process for preparing a catalyst compositionwherein a Metal Hydrocarboxide I, such as aluminum sec-butoxide, a Metal Hydrocarboxide II, such as siliconethoxide, an acidic phosphorus-oxygen composition, suchas phosphoric acid, and water, are reacted in thepresence of a liquid organic medium, such as acetone, toform a catalyst precursor composition, which is thencalcined to form the catalyst, is disclosed. The catalystis useful for condensing carboxylic acids or their esterwith aldehydes or acetals to synthesize .alpha. , .beta.-ethylenicallyunsaturated acids or esters, such as methylmethacrylate.