Alpha, beta-ethylenically unsaturated acids and derivatives ther

Details Alpha, beta-ethylenically unsaturated acids and derivatives ther Alpha, beta-ethylenically unsaturated acids and derivatives ther

1985-09-11

1988-04-19

Moyer, Donald B.

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

Organic compounds

Carboxylic acid esters

562599, 568459, 568460, 568461, C07C 67343, C07C 51353, C07C 4574

Patent

active

047391111

ABSTRACT:
A process for preparing a catalyst composition wherein a Metal Hydrocarboxide I, such as aluminum secbutoxide, a Metal Hydrocarboxide II, such as zirconium butoxide, 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: 3014958 (1961-12-01), Koch et al.
patent: 3450769 (1969-06-01), Payne et al.
patent: 3592856 (1971-07-01), Offenhauer et al.
patent: 4346239 (1982-08-01), Bach et al.

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