Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1388579 | Carbohydrate Research | 2008 | 7 Pages |
Abstract
H-Beta zeolite, a microporous solid acid, is demonstrated to be an efficient catalyst for the selective deprotection of cyclic as well as acyclic O-isopropylidene sugar acetals derived from d-glucose, d-xylose, d-mannose, and d-mannitol in aqueous MeOH at room temperature. A notable observation is the conversion of d-mannitol triacetonide into 1,2:3,4-di-O-isopropylidene-d-mannitol (48%) and 3,4-O-isopropylidene-d-mannitol (36%) brought about in 6 h by H-beta zeolite and the non-occurrence of any hydrolysis in the case of H-ZSM-5 catalyzed reaction in 24 h under the same conditions.
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Physical Sciences and Engineering
Chemistry
Organic Chemistry
Authors
Pallooru Muni Bhaskar, Manoharan Mathiselvam, Duraikkannu Loganathan,