Addition of α-bromoesters to azetidine-2,3-diones promoted by zinc-trimethylchlorosilane: a general synthesis of 3-trimethyisilyloxyazetidin-2-ones and α-alkylidene β-lactams.

1. Palorno, C.
2. Aizpurua, J.M.
3. Concepción López, M.
4. Aurrekoetxea, N.
5. Oiarbide, M.