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Synthesis of 6a 6x di o p tosyl gamma cyclodextrins and their structural determination through enzymatic hydrolysis of 3a 6a . 3x 6x dianhydro gamma cyclodextrins



Synthesis of 6a 6x di o p tosyl gamma cyclodextrins and their structural determination through enzymatic hydrolysis of 3a 6a . 3x 6x dianhydro gamma cyclodextrins



Journal of Organic Chemistry 53(9): 1943-1947



6A,6X-Di-O-(p-tosyl)-.gamma.-cyclodextrins (X = B, C, D, and E) were prepared by the reaction of .gamma.-cyclodextrin and p-tosyl chloride in pyridine and isolated by reversed-phase column chromatography. From the results of Taka amylolyses of 3A,6A;3X,6X-dianhydro-.gamma.-cyclodextrins which were obtained from the corresponding ditosylates, the regiochemistry of the ditosylates was determined.

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