%0 Journal Article %T Preparation of 4′,4′′(5′′)-Di-tert-butyldibenzo-18-crown-6 Based on Electrophilic Aromatic Substitution %A Fan, Juan %A Yi, Chunhai %A Lan, Xiaorong %A Yang, Bolun %J Chemistry Letters %V 41 %N 3 %P 274-276 %@ 0366-7022 %D 2012-02-25 %I Oxford University Press %~ DeepDyve