Process for synthesizing .alpha.,.beta.-ethylenically unsaturate

Details Process for synthesizing .alpha.,.beta.-ethylenically unsaturate Process for synthesizing .alpha.,.beta.-ethylenically unsaturate

1983-08-08

1985-12-24

Trousof, Natalie

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acid esters

560211, 562599, 568460, 568461, C07C 67343, C07C 51353, C07C 4574

Patent

active

045607907

ABSTRACT:
A process for preparing a catalyst composition wherein a Metal Hydrocarboxide I, such as aluminum secbutoxide, a Metal Hydrocarboxide II, such as silicon ethoxide, an acidic phosphorus-oxygen composition, such as phosphoric acid, and water, are reacted in the presence of a liquid organic medium, such as acetone, to form a catalyst precursor composition, which is then calcined to form the catalyst, is disclosed. The catalyst is useful for condensing carboxylic acids or their ester with aldehydes or acetals to synthesize .alpha., .beta.-ethylenically unsaturated acids or esters, such as methylmethacrylate.

REFERENCES:
patent: 4118588 (1978-10-01), Fouquet et al.

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