SummaryThe title compound 1 (NPP) is prepared from formaldehyde, nitromethane, and pivaloyl chloride. It is shown to be a versatile nitroallylating reagent combining with nucleophiles as different as anilines, indoles, enolates, and organolithium compounds. This is documented by ca. 40 examples (2-30). The mechanism of the reaction is discussed. Some examples of addition of two different nucleophiles to the c,-moiety of NPP are described (35-46). This demonstrates the usefulness of NPP as a multiple coupling reagent for convergent syntheses, also of products not containing nitro groups (Scheme 4 ) .