DEPROTECTION OF 1,1-DIACETATES WITH [NO+⋅ CROWN ⋅ H(NO3)2−]

ABSTRACT An ionic complex has been obtained from N2O4 in the presence of the macrocyclic polyether 18-crown-6. This crystalline compound was used as an effective deprotecting agent for the conversion of 1,1-diacetates to their corresponding aldehydes at room temperature with quantitative yields.