Oxidative deprotection of silylethers, acetals and ketals to their corresponding alcohols, aldehydes and ketones have been achieved using oxygen or air in the presence of cobalt and manganese salts of 4-aminobenzoic acid supported an silica gel as catalysts. Reactions are clean and catalysts can be recovered easily and reused repeatedly.
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Hashemi et al. (2000) studied this question.
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