Abstract
The nitrene transfer from t-butyloxycarbonyl azide (BocN3) to several nucleophiles is promoted by ferrous chloride (FeCl2) and yields the corresponding N-Boc protected sulfoximides, sulfimides, or α-amino alkanoates. Whereas the sulfoximide formation occurs spontaneously in CH2Cl2 as solvent the FeCl2-catalyzed nitrene transfer to sulfides and ketene acetals requires addition of a polar solvent. DMF was found to be best suited for this purpose.
Original language | English |
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Pages (from-to) | 5015-5016 |
Number of pages | 2 |
Journal | Tetrahedron Letters |
Volume | 39 |
Issue number | 28 |
DOIs | |
State | Published - 9 Jul 1998 |
Externally published | Yes |
Keywords
- Catalysis
- Nitrenes
- Sulfimides
- Sulfoximides