An Improved Procedure for the Ring Opening of Benzylidene Acetals with N-Bromosuccinimide |
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| Authors: | FranÇHise Chrétien Mustapha Khaldi Yves Chapleur |
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| Institution: | Laboratoire de Chimie Organique , Unité associée au CNRS 486, Université de Nancy I , B.P. 239, F-54506, Nancy Cedex, France |
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| Abstract: | A new procedure for the ring opening of 4,6-O-benzylidene acetals of carbohydrates with N-bromosuccinimide using calcium carbonate in stoechiometric amount instead of excess barium carbonate is described. This procedure is successfully applied to some highly functionnalized substrates without side reactions. |
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