Basic catalysts and process for producing carbonyl compound derivatives
AssigneeChisso Corporation
InventorsKan-ichiro Inui, Shunji Oshima, Toru Kurabayashi, Sakae Kawamura, Masahiro Yokota
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Abstract
A base catalyst, obtained by formulating at least one alkali metal compound selected from the group consisting of alkoxides, hydroxides and oxides of alkali metals and an alkaline-earth metal oxide in a ratio of “the weight of alkaline metal compound/the weight of alkaline-earth metal oxide”=0.005 to 1, is used in a reaction of an aldehyde to produce a glycol monoester, thereby providing a base catalyst with an improved efficiency which can be applied to aldol reaction or the like and which has high activity to give target product in a high selectivity.
Claims13
In a method for producing a glycol monoester from an aldehyde having 2 to 12 carbon atoms in the presence of a catalyst, the improvement wherein the catalyst is a catalyst comprising at least one alkali metal compound selected from the group consisting of alkoxides, hydroxides and oxides of alkali metals, and an alkaline-earth metal oxide, and
- the method comprises an earlier reaction step using the at least one alkali metal compound and a later reaction step using the alkaline-earth metal oxide.
In a method for producing a glycol monoester from an aldehyde having 2 to 12 carbon atoms in the presence of a catalyst, the improvement wherein the catalyst is a base catalyst comprising at least one alkali metal compound selected from the group consisting of alkoxides, hydroxides and oxides of alkali metals, and an alkaline-earth metal oxide with a weight ratio of the alkali metal compound to the alkaline-earth metal oxide which is calculated by a formula, “the weight of alkaline metal compound/the weight of alkaline-earth metal oxide”, being Prom 0.005 to 1, and
- the method comprises an earlier reaction step using the at least one alkali metal compound and a later reaction step using the alkaline-earth metal oxide.
Dependencies are inferred from the claim text.