Simple and clean synthesis of 9,9-bis[4-(2-hydroxyethoxy)phenyl]fluorene from the aromatic alkylation of phenoxyethanol with fluoren-9-one catalysed by titanium cation-exchanged montmorillonite

Abstract
9,9-Bis[4-(2-hydroxyethoxy)phenyl]fluorene is simply obtained by the condensation of phenoxyethanol with fluoren-9-one using a Ti4+ cation-exchanged montmorillonite as a strong solid acid catalyst.

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