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Title: Tandem epoxidation-alcoholysis or epoxidation-hydrolysis of glycals catalyzed by Titanium(IV) isopropoxide or Venturello's phosphotungstate complex
Authors: Levecque, Pieter
Gammon, David W
Kinfe, Henok Hadgu
Jacobs, Pierre
De Vos, Dirk
Sels, Bert # ×
Issue Date: Jun-2008
Publisher: Wiley-VCH Verlag GmbH
Series Title: Advanced Synthesis & Catalysis vol:350 issue:10 pages:1557-1568
Abstract: Venturello's phosphotungstate complex and titanium(IV) isopropoxide [Ti(O-i-Pr)(4)] were successfully used as catalysts for the epoxidation-alcoholysis of glycals using hydrogen peroxide [H2O2] Reaction substrates included a range of variously protected glycals and different alcohols were used as solvents. Ti(O-i-Pr)(4) was only effective in methanol as solvent, but gave methyl glycosides in high yields and high selectivities. The Venturello complex proved to be a very versatile and efficient catalyst. Apart from epoxidation-alcoholysis in alcoholic solvents it also showed activity in biphasic conditions to allow for glycosylation of long-chain alcohols and was very effective in the stereoselective dihydroxylation of benzylated glucal.
ISSN: 1615-4150
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Centre for Surface Chemistry and Catalysis
× corresponding author
# (joint) last author

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