<i>tert-</i>Butyl (Phenylsulfonyl)alkyl- <i>N</i>-hydroxycarbamates: The First Class of <i>N</i>-(Boc) Nitrone Equivalents
作者:Xavier Guinchard、Yannick Vallée、Jean-Noël Denis
DOI:10.1021/ol051766c
日期:2005.11.1
[reaction: see text] tert-Butyl (phenylsulfonyl)alkyl-N-hydroxycarbamates 1 have been easily prepared from aldehydes and tert-butyl N-hydroxycarbamate in a methanol-water mixture using sodium benzenesulfinate and formic acid. These sulfones 1 behave as N-(Boc)-protected nitrones 4 in the reaction with organometallics to give N-(Boc)hydroxylamines. Some chemical transformations showing their interest
[反应:见正文]苯磺酸钠和甲酸很容易从醛和N-羟基氨基甲酸叔丁酯在甲醇-水混合物中容易地制得叔丁基(苯磺酰基)烷基-N-羟基氨基甲酸酯。这些砜1在与有机金属的反应中表现为N-(Boc)-保护的硝酮4,得到N-(Boc)羟胺。描述了一些化学转化,这些化学转化显示了它们作为有机合成中的基础成分的兴趣。