P 2 O 5/Al 2 O 3 as an efficient heterogeneous catalyst for chemoselective synthesis of 1, 1-diacetates under solvent-free conditions

AR Hajipour, A Zarei, AE Ruoho

Index: Hajipour, Abdol R.; Zarei, Amin; Ruoho, Arnold E. Tetrahedron Letters, 2007 , vol. 48, # 16 p. 2881 - 2884

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Citation Number: 68

Abstract

Selective protection and deprotection of carbonyl groups are extremely important steps in modern organic chemistry. 1 1,1-Diacetates (acylals) are one of the essential carbonyl protecting groups due to their stability under both neutral and basic media as well as under acidic conditions. 2 The diacetates of α,β-unsaturated aldehydes are important starting materials for Diels–Alder reactions and also are useful intermediates in industries. 3 and 4 Moreover, the acylal ...