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.
本发明涉及一种制备1,6:2,3-二去氢-α-
D-甘露糖的方法,其特征在于包括在无
水条件下,在醇/醇酸盐混合物中环化化合物C的步骤,其中R为烷基,R'为活化剂。