Stereoselective [2,3]-sigmatropic rearrangements of unstabilized nitrogen Ylides
by Gawley, Robert E.; Moon, Kwangyul
[GRAPHICS] The steric course of the [2,3]-rearrangement of several unstabilized nitrogen ylides has been investigated. The reactions proceed cleanly through an anti transition state, affording modest to good yields of a single diastereomer of the product. In two examples containing an N-cinnamyl group, a competing [1,2]-rearrangement affords a minor product.
- Organic Letters
- Start Page
- 1523-7052; 1523-7060