FIELD: chemistry.
SUBSTANCE: invention relates to a method of obtaining benzophenone (meth)acrylates, in which contact of hydroxybenzophenones and (meth)acrylic acid is realised in the presence of catalytic quantities of concentrated sulphuric acid, alkyl- or arylsulphonic acid with the following neutralisation of the catalyst and further purification of the raw monomer.
EFFECT: method makes it possible to achieve high degrees of conversion, which leads to the considerable reduction of quantity of byproducts.
5 cl, 4 ex
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Authors
Dates
2014-12-27—Published
2009-11-19—Filed