Process for preparing heptakis-(2,6-di-O-methyl)-beta cyclodextrin

摘要

The invention relates to a process for the manufacture of heptakis-[2,6-di-O-methyl]-beta-cyclodextrin by methylating beta-cyclodextrin in an organic phase wherein beta-cyclodextrin is methylated with dimethylsulfate in the presence of an alkalihydroxide at temperatures of from -10 DEG to 0 DEG C.