Type: Article

Microwave-assisted rapid and efficient deprotection and direct esterification and silylation of MOM and EOM ethers catalyzed by [Hmim][HSO 4] as a Brønsted acidic ionic liquid

Journal: Monatshefte fur Chemie (00269247)Year: 2010/10/01Volume: Issue: 10

Mohammadpoor Baltork I.^aMoghadam M.^aTangestaninejad S.^aMirkhani V.^a Khosropour A.R.

a :University of Isfahan - IRAN(IR) - Isfahan

DOI:10.1007/s00706-010-0373-6Language: English

Abstract

1-Methylimidazolium hydrogensulfate, [Hmim] [HSO4], a Brønsted acidic room temperature ionic liquid, is used as a catalyst and reaction medium for facile and ecofriendly deprotection of methoxymethyl (MOM) and ethoxymethyl (EOM) ethers to their corresponding alcohols under thermal conditions (Δ) and microwave irradiation (MW). Furthermore, one-pot interconversion to the respective acetates and trimethylsilyl (TMS) ethers was also achieved. © Springer-Verlag 2010.