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Synfacts 2009(9): 1047-1047  
DOI: 10.1055/s-0029-1217651
Polymer-Supported Synthesis
© Georg Thieme Verlag Stuttgart ˙ New York

Benzylidene Diacetate Formation with Silica-Bonded S-Sulfonic Acid

Contributor(s): Yasuhiro Uozumi, Yoichi M. A. Yamada, Elisabetta Greco
K. Niknam*, D. Saberi, M. N. Sefat
Persian Gulf University, Bushehr, Iran
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Publication History

Publication Date:
21 August 2009 (online)

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Significance

Benzylidene diacetates (fifteen examples) were prepared from aromatic aldehydes in the presence of a silica-bonded S-sulfonic acid (SBSSA) under solvent-free conditions. Several ­aldehydes were converted into the corresponding benzylidene diacetates in high yield (91-72%) within 2-4 min. SBSSA 2 was reused up to twenty times and no significant loss in the catalytic activity was observed.