FIELD: improved method for transalcoholysis of trimethylolpropahe monocyclic formal or trimethylolethane monocyclic formal.
SUBSTANCE: claimed method includes transalcoholysis reaction of trimethylolpropahe monocyclic formal or trimethylolethane monocyclic formal with excess of mono- or dibasic alcohol at elevated temperature in presence of acid catalyst to obtain trimethylolpropahe or trimethylolethane, respectively, used as synthesis intermediate of vide variety of products and acetales as by-product. Further provided by the present invention is method for interaction of composition containing at least 10 mass % of trimethylolpropahe bis(monolinear) formal or trimethylolethane bis(monolinear) formal, not more than 5 mass % of water, and mono- or dibasic alcohol in stoichiometric excess with strong acid catalyst at 30-3000C, for such period of time as to convert sufficient amount of said trimethylolpropahe bis(monolinear) formal or trimethylolethane bis(monolinear) formal to trimethylolpropahe or trimethylolethane, respectively, and acetales as by-product.
EFFECT: method for production of target products with improved yield.
27 cl, 10 ex, 11 tbl
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