Nitroallylation of highly reactive organolithium compounds by 2-nitro-3-pivaloyloxy-1-propene (NPP)
作者:Paul Knochel、Dieter Seebach
DOI:10.1016/s0040-4039(01)81868-2
日期:1981.1
The nitroolefin (NPP) efficiently transfers a 2-nitroallyl group even to the most reactive nucleophilic centres of organolithium reagents to give the products of type listed in the table.
2?-Nitro-2?-propen-1?-yl 2,2-Dimethylpropanoate (NPP), A Multiple Coupling Reagent
作者:Dieter Seebach、Paul Konchel
DOI:10.1002/hlca.19840670133
日期:1984.2.1
The title compound 1 (NPP) is prepared from formaldehyde, nitromethane, an 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