Alkene hydroamination is an attractive approach for converting alkenes into structurally
complex amine products. Several different strategies have been pursued over the past
few decades to achieve this historically challenging reaction. One of the key issues
associated with this transformation is control of regioselectivity, which is particularly
difficult for internal non-conjugated alkenes. Our group has recently found success
using a removable bidentate auxiliary to control regioselectivity and stabilize the
key nucleopalladated intermediate in a palladium(II)-catalyzed alkene hydroamination
with N–H nucleophiles. This article describes the historical context for this work,
the underlying conceptual logic, our results to date, and the future outlook.
Key words
palladium - hydroamination - hydrofunctionalization - nucleopalladation - aza-heterocycles
- directing groups