作者:Dennis A. Parrish、Zhou Zou、C. Leigh Allen、Cynthia S. Day、S. Bruce King
DOI:10.1016/j.tetlet.2005.10.091
日期:2005.12
Treatment of amines with 1-(4-nitrophenol)-N-(O-benzylhydroxy)carbamate yields the O-benzyl protected N-hydroxyureas. Hydrogenation of the O-benzyl protected N-hydroxyureas over 5% Pd/BaSO4 cleanly gives the N-hydroxyureas in good yield. In addition to primary and secondary aliphatic and aromatic amines, this method converts amino sugars to the corresponding N-hydroxyureas without extensive protecting
胺治疗与1-(4-硝基苯酚) - ñ - (ö -benzylhydroxy)氨基甲酸酯的产率ø -苄基保护的Ñ -hydroxyureas。超过5%Pd / BaSO 4的O-苄基保护的N-羟基脲的氢化干净地得到了N-羟基脲,收率很高。除了伯和仲脂肪族和芳香族胺外,该方法无需大量的保护基化学作用即可将氨基糖转化为相应的N-羟基脲。