Помогите, пожалуйста, со статьями:
1. Org. Lett., 2006, 8(9), 1795-1798
Catalytic Enantioselective 1,3-Dipolar Cycloaddition of Azomethine Ylides with Vinyl Sulfones
Tomás Llamas, Ramón Gómez Arrayás, and Juan C. Carretero
- DOI:
http://dx.doi.org/10.1021/ol060314c
Lewis acid catalyzed ene reactions of ethynyl p-tolyl sulfone
Barry B. Snider, Thomas C. Kirk, David M. Roush, Domingo Gonzalez
- DOI:
http://dx.doi.org/10.1021/jo01313a001