N-(Diethoxyphosphoryl)-O-benzylhydroxylamine—a convenient substrate for the synthesis of N-substituted O-benzylhydroxylamines
作者:Katarzyna Błażewska、Tadeusz Gajda
DOI:10.1016/j.tet.2003.10.056
日期:2003.12
Easily available N-(diethoxyphosphoryl)-O-benzylhydroxylamine was shown to be convenient, orthogonally protected substrate for regioselective N-alkylation by means of diverse halides under basic conditions (sodium hydride/tetrabutylammonium bromide). An efficient procedure for dephosphorylation of N-substituted N-(diethoxyphosphoryl)-O-benzylhydroxylamine to provide N-substituted O-benzylhydroxylamines
已表明,在碱性条件下(氢化钠/四丁基溴化铵),通过各种卤化物,易于获得的N-(二乙氧基磷酰基)-O-苄基羟胺是一种方便的,受正交保护的底物,用于区域选择性N-烷基化。还建立了用于N-取代的N-(二乙氧基磷酰基)-O-苄基羟胺的去磷酸化以提供N-取代的O-苄基羟胺的有效方法。