Method for preparing 1,6:2,3-dianhydro-β-D-mannopyranose

摘要

The invention relates to a method for preparing 1,6:2,3-dianhydro-â-D-mannopyranose and is characterized in that it includes a step of cyclizing the compound C, where R is an alykyl group and R′ is an activating agent, in an alcohol/alcoholate mixture under anhydrous conditions.;

主权项

1. A process for the preparation of compound (I): comprising a stage of cyclisation of compound C: in which R represents an alkyl group comprising from 1 to 4 carbon atoms and R′ represents an activating agent, in an alcohol/alkoxide mixture under anhydrous conditions.