Method for making methacrylic acid, its nitrile and its esters

Details Method for making methacrylic acid, its nitrile and its esters Method for making methacrylic acid, its nitrile and its esters

1978-01-16

1979-04-03

Brust, Joseph Paul

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260561N, 560211, 562599, C07C12132, C07C 5704, C07C 6954

Patent

active

041477189

ABSTRACT:
In the method of making a compound of the formula ##STR1## wherein X is carboxyl, a carboxylic acid ester group --COOR.sub.2, or cyano, by reaction of a compound of the formula CH.sub.3 CH.sub.2 X with methylal in the presence of a catalyst, the improvement wherein said catalyst is a catalyst system which consists essentially of (1) silicon dioxide dosed with a basic component and (2) a member selected from the group consisting of aluminum oxide and titanium dioxide.

REFERENCES:
patent: 3051747 (1962-08-01), Leathers et al.
patent: 3089898 (1963-05-01), Vitcha et al.
patent: 3247248 (1966-04-01), Sims et al.
patent: 3440276 (1969-04-01), Wolf et al.
patent: 3578702 (1971-05-01), Snapp, Jr. et al.
patent: 3654345 (1972-04-01), Jentsch
patent: 3840587 (1974-10-01), Pearson
patent: 3933888 (1976-01-01), Schlaefer

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