Stabilization method of vinyl compound with hydroxy group and co

Details Stabilization method of vinyl compound with hydroxy group and co Stabilization method of vinyl compound with hydroxy group and co

1996-09-09

1998-06-02

Killos, Paul J.

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

Organic compounds

Carboxylic acid esters

558451, 562579, 508415, 508496, C07C 6973

Patent

active

057602786

ABSTRACT:
A stabilization method of a vinyl compound with hydroxy group of an improved stability is achieved by preventing it from being denatured on storage, transportation, manufacturing process while maintaining its reactivity. A composition containing the vinyl compound with hydroxy group of an improved stability is obtained by the described stabilization method. The stabilization method is characterized by coexisting a vinyl compound with hydroxy group of formula (1), a primary antioxidant, alcohol and/or water, ##STR1## wherein R is a hydrogen atom or an organic residue, X is a --CN group, a --COR.sub.0 group or a --COOR.sub.0 group, and R.sub.0 is a hydrogen atom or an organic residue. In this stabilization method, not less than 50 ppm of alcohol and/or water is added with respect to the vinyl compound with hydroxy group. The stabilization method may be achieved by coexisting the above-defined vinyl compound with hydroxy group, the primary antioxidant and organic acid. In this case, not less than 10 ppm of organic acid is added to the vinyl compound with hydroxy group.

REFERENCES:
patent: 3959358 (1976-05-01), Jursich
Villieras et al., "Ethyl .alpha.-(Hydroxymethyl)Acrylate", Organic Syntheses, vol. 66,, pp. 220-225, 1988.
"Dictionary of Organic Compounds" (Chapman and Hall, Fifth Edition, Second Supplement, p. 259, published 1984).

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