Bismuth compounds in organic synthesis. Deprotection of ketoximes using bismuth bromide-bismuth triflate

[摘要] Ketoximes undergo deprotection in CH3CN/acetone/H2O (3:6:1) in the presence of 20-40 mol% BiBr3/5 mol% Bi(OTf)(3). Bismuth(III) salts are relatively non-toxic, insensitive to air and inexpensive. These features coupled with the use of a relatively non-toxic solvent system make this method an attractive alternative to existing routes for deprotection of ketoximes. (C) 2003 Elsevier Ltd. All rights reserved.

[发布日期] 2003-12-15

[关键词] bismuth and compounds;oximes;deprotection;environment-friendly chemistry