作者:Daniel Zewge、Anthony King、Steven Weissman、David Tschaen
DOI:10.1016/j.tetlet.2004.03.095
日期:2004.5
Dibenzyloydihydrobenzoxathiin 1, which resisted debenzylation with SiCl4/LiI, was effectively debenzylated with SiCl4/ LiI in the presence of a catalytic amount of BF3. The HCI salt of the bis-debenzylated product 2 was isolated in 90%, yield and 99% purity. This enhanced dealkylation activity has also been observed with other substrates. (C) 2004 Published by Elsevier Ltd.