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South African Journal of Chemistry

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[H2-Cryptand 222]2+(Br3)2 as a Tribromide-Type Catalyst for the Trimethylsilylation/Tetrahydropyranylation of Alcohols

G Chehardoli, MA Zolfigol, V Khakyzadeh, H Gholami, K Niknam

Abstract


A stable organic tribromide, [H2-cryptand 222]2+(Br3)2 was utilized as an active catalyst for the trimethylsilylation/tetrahydropyranylation of alcohols. The method is general for the preparation of OH-protected aliphatic (acyclic and cyclic), aromatic, primary, secondary and tertiary alcohols.

Keywords: [H2-cryptand 222]2+(Br3)2, trimethylsilylation, tetrahydropyranylation, alcohols, tribromide, TMS-ether, THP-ether




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