Tetrahedron letters

Mesoporous aluminosilicate promoted protection and deprotection of carbonyl compounds

MWC Robinson, AE Graham

Index: Robinson, Mathew W.C.; Graham, Andrew E. Tetrahedron Letters, 2007 , vol. 48, # 27 p. 4727 - 4731

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Citation Number: 31

Abstract

The protection of carbonyl functions as acetals and their subsequent deprotection is an important strategy in multi-stage synthesis. 1 The use of acetals as protecting groups has been employed widely and typically utilizes acid catalysts such as para-toluene sulfonic acid (PTSA) or boron trifluoride diethyl etherate in the presence of a dehydrating agent such as trimethyl orthoformate. 2 Numerous attempts to improve the atom efficiency of this process have ...

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