Process for the manufacture of halo esters of carboxylic or dica

Details Process for the manufacture of halo esters of carboxylic or dica Process for the manufacture of halo esters of carboxylic or dica

1996-01-22

1998-09-08

Dees, Jose G.

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

Organic compounds

Carboxylic acid esters

560236, C07C 6952

Patent

active

058046879

ABSTRACT:
A compound (Ia) or (Ib) is prepared by reacting, in a polar aprotic solvent, a compound (III) with a salt of a carboxylic or dicarboxylic acid (IIa) or (IIb). The reaction may be carried out under pressure, but also at normal atmospheric pressure or in the region of normal atmospheric pressure (especially between 0.10 bar and 2 bars). The product (Ia) or (Ib) formed is, in this latter case, recovered continuously as it is formed. ##STR1## R.sup.1, R.sup.2 =optionally substituted saturated or unsaturated acyclic or cyclic hydrocarbon radicals; R.sup.3 =C.sub.1 -C.sub.10 perhaloalkyl; 0<n.ltoreq.4; X=halogen.
The applications of the fluoroalkyl (meth)acrylates obtained are especially: anti-dust or anti-soiling paints for various supports such as exterior coatings and metal furniture; optical fibers; contact lenses; lithography; electrophotography; heat-resistant materials; dental resins.

REFERENCES:
patent: 2830078 (1958-04-01), Fekete
patent: 4260812 (1981-04-01), Beck
patent: 4421675 (1983-12-01), Sawicki
patent: 4434297 (1984-02-01), Astrologes
patent: 5202462 (1993-04-01), Yazawa et al.
patent: 5319132 (1994-06-01), Ozarwa et al.
Patent Abstracts of Japan, vol. 10, No. 235 (C-366) (2291), Aug. 14, 1986 (Abstract of JP-A-61 069 742).

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