ChemInform Abstract: Truly Catalytic and Chemoselective Cleavage of Benzylidene Acetal with Phosphomolybdic Acid Supported on Silica Gel
Autor: | Ponminor Senthil Kumar, Gaddale Devanna Kishore Kumar, Sundarababu Baskaran |
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Rok vydání: | 2009 |
Předmět: | |
Zdroj: | ChemInform. 40 |
ISSN: | 1522-2667 0931-7597 |
Popis: | Phosphomolybdic acid supported on silica gel provides a truly catalytic method for the chemoselective cleavage of benzylidene acetals having sensitive functional groups under mild conditions. It is easy to perform on large scale owing to minimal catalyst loading (0.5 mol-%). Several sensitive functional groups such as TBDPS ether, -OMs, -OAc, allyl ether, N-Boc, N-Fmoc and N-Cbz are stable under the reaction conditions. In addition, benzylidene acetal is selectively cleaved in the presence of isopropylidene ketal. |
Databáze: | OpenAIRE |
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