Abstract
The construction of axially chiral alkene frameworks is currently one of hottest topics
in the field of organic synthetic chemistry. Compared to traditional axially chiral
molecules, such as biaryls, heterobiaryls, and anilides, the synthesis of axially
chiral alkenes is far more challenging, especially for acyclic tetrasubstituted alkene
analogues. In this review, we summarized the development of strategies for the synthesis
of tetrasubstituted axially chiral alkene analogues, including asymmetric difunctionalization,
C–H functionalization, cross-coupling, (dynamic) kinetic resolution, and asymmetric
allylic substitution-isomerization.
1 Introduction
2 Synthesis of Cyclic Tetrasubstituted Axially Chiral Alkenes
3 Synthesis of Acyclic Tetrasubstituted Axially Chiral Alkenes
4 Summary and Outlook
Key words
axial chirality - tetrasubstituted alkenes - difunctionalization - C–H functionalization
- cross-coupling - kinetic resolution - asymmetric allylic substitution-isomerization