The 106th volume in this series for organic chemists in academia and industry presents critical discussions of the following widely used organic reactions: ALKENE CROSS-METATHESIS REACTIONS Karol Grela, Anna Kajetanowicz, Anna Szadkowska, and Justyna Czaban-Józwiak THE CATALYTIC ENANTIOSELECTIVE STETTER REACTION Darrin M. Flanigan, Kerem E. Ozboya, Subhash D. Tanpure, Alberto Muñoz, Paul R. Blakemore, and Tomislav Rovis