Organocatalytic Addition on 1,2-Bis(sulfone)vinylenes Leading to an Unprecedented Rearrangement
作者:Adrien Quintard、Alexandre Alexakis
DOI:10.1002/chem.200901535
日期:2009.10.26
An unprecedentedrearrangement of 1,2‐bis(sulfone)vinylenes used in aminocatalysis led to the formation of highly useful gem‐disulfones (see scheme). By using aminal–pyrrolidine organocatalysts, the 1,2‐sulfone shift was generalised, leading to highly versatile adducts using both ketones and aldehydes. It represents a valuable alternative for the α‐alkylation of carbonyl compounds.