2001 protection, deprotection

protection, deprotectionO 0345

50 - 070Potassium Ferrate Supported on Montmorillonite K-10: A Mild andEfficient Reagent for Oxidative Deprotection of Acetals and Ketals.— A selective, inexpensive, and environmentally benign protocol is developedfor the oxidative deprotection of acetals and ketals (I). The reaction, carried outwithout the solid support, remains incomplete even at higher temperatures andlonger reaction times as well as with a higher ratio of reagent. The generalityof the method is demonstrated by deprotection of eleven acetals and ketalsproviding their parent compounds in high to excellent yields. — (HERAVI,MAJID M.; TAJBAKHSH, MAHMOOD; HABIBZADEH, SETAREH; GHAS-SEMZADEH, MITRA; Monatsh. Chem. 132 (2001) 8, 985-988; Dep. Chem.,Sch. Sci., Azzahra Univ., Tehran, Iran; EN)

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