Abstract
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 group chemistry.
Original language | English (US) |
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Pages (from-to) | 8841-8843 |
Journal | Tetrahedron Letters |
State | Published - Nov 7 2005 |
Keywords
- N-Hydroxyureas
- nitric oxide
- nitric oxide donors
- Carbohydrates
- Hydrogenation