Polyvinylpolypyrrolidone-Bromine Complex, Mild and Efficient Polymeric Reagent for Selective Deprotection and Oxidative Deprotection of Silylethers

Moslem Mansour      Lakouraj; Masoud      Mokhtary

doi:10.2174/157017807780037379

Abstract

Mild and convenient method for deprotection and direct oxidative deprotection of silyl ethers to the corresponding hydroxy and carbonyl compounds is described using polyvinylpolypyrrolidone-bromine complex (PVPP-Br2). Selective oxidative deprotection of benzylic silyl ethers in the presence of primary aliphatic alcohols was also achieved at room temperature.

Keywords: Polyvinylpolypyrrolidone, PVPP-Br2, deprotection, oxidative deprotection, TMS ethers, TES and TBDMS ethers

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Letters in Organic Chemistry

Title: Polyvinylpolypyrrolidone-Bromine Complex, Mild and Efficient Polymeric Reagent for Selective Deprotection and Oxidative Deprotection of Silylethers

Volume: 4 Issue: 1

Author(s): Moslem Mansour Lakouraj and Masoud Mokhtary

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Keywords: Polyvinylpolypyrrolidone, PVPP-Br2, deprotection, oxidative deprotection, TMS ethers, TES and TBDMS ethers

Abstract: Mild and convenient method for deprotection and direct oxidative deprotection of silyl ethers to the corresponding hydroxy and carbonyl compounds is described using polyvinylpolypyrrolidone-bromine complex (PVPP-Br2). Selective oxidative deprotection of benzylic silyl ethers in the presence of primary aliphatic alcohols was also achieved at room temperature.

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Lakouraj Moslem Mansour and Mokhtary Masoud, Polyvinylpolypyrrolidone-Bromine Complex, Mild and Efficient Polymeric Reagent for Selective Deprotection and Oxidative Deprotection of Silylethers, Letters in Organic Chemistry 2007; 4 (1) . https://dx.doi.org/10.2174/157017807780037379