process for the production of beta - hydroxy gamma butyrolactone derivatives and beta - (meth) acryloxy gamma butyrolactone derivatives

摘要

The present invention relates to a process for preparing corresponding beta -hydroxy- gamma -butyrolactone or beta -methyl- beta - hydroxy- gamma -butyrolactone represented by the formula (1): CHEM wherein R1 represents a hydrogen atom or a methyl group, which comprises cyanating glycidol or 2-methyl-2,3-epoxypropanol, followed by hydrolysis and further lactonization.