Process for the production of 3-hydroxyalkanals

Details Process for the production of 3-hydroxyalkanals Process for the production of 3-hydroxyalkanals

1992-11-24

1994-01-04

Lone, Werren B.

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

Organic compounds

Oxygen containing

568496, C07C 4561, C07C 4564

Patent

active

052762017

ABSTRACT:
A process for the production of 3-hydroxyalkanals, more particularly 3-hydroxypropionaldehyde, by hydration of the basic 2-alkenals, more particularly acrolein, in the presence of a solid catalyst containing acid functional groups. The catalysts are based on an inorganic support containing basic activity centers (which are at least partly occupied by a polybasic acid, of which the first pK.sub.s value is between 0 and 3, in a form in which it cannot be removed by water) enables the hydration to be carried out with high selectivity. At the same time, the disadvantages of known organic fixed-bed catalysts are avoided. Preferred catalyst are based on pyrogenic titanium dioxide with phosphoric acid fixed thereon.

REFERENCES:
patent: 2434110 (1948-01-01), Hatch et al.
patent: 3536763 (1970-10-01), Eleuterio et al.
patent: 5015789 (1991-05-01), Arutz et al.

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