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Synfacts 2010(2): 0251-0251  
DOI: 10.1055/s-0029-1219047
Polymer-Supported Synthesis
© Georg Thieme Verlag Stuttgart ˙ New York

Deprotection of Aryl Acetates with Silica-Supported Cobalt(II) Catalyst

Contributor(s): Yasuhiro Uozumi, Yoichi M. A. Yamada, Elisabetta Greco
F. Rajabi*
Payame Noor University, Qazvin, Iran
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Publikationsverlauf

Publikationsdatum:
21. Januar 2010 (online)

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Significance

A thermally stable (up to 480 ˚C) silica-based cobalt catalyst 1 for the selective deprotection of aryl acetates was developed. Optimal reaction conditions (substrate: 1 mmol) using the novel mesoporous-supported cobalt(II) (0.01 mmol) in MeOH (5 ml) at r.t. were identified (98% yield; 2). A control experiment was examined without the immobilized Co(II) catalyst 1 to demonstrate its high catalytic activity (with 1, 2: 98%; without 1, 2: 7% yield).