Enantioselective Redox-Neutral Coupling of Aldehydes and Alkenes by an Iron-Catalyzed “Catch–Release” Tethering Approach
摘要:
The reductive coupling of aldehydes and alkenes is an emerging technology that holds the potential to reinvent carbonyl addition chemistry. However, existing enantioselective methods are limited to form "branched" products. Herein, we present a directed enantio- and diastereoselective alkylation of aldehydes with simple olefins to selectively yield linear coupling products. This is achieved by redox-neutral remote functionalization, whereby a tethering "catch-release" strategy decisively solves the key problems of reactivity and selectivity.
Diastereo‐ and Enantioselective Access to Stereotriads through a Flexible Coupling of Substituted Aldehydes and Alkenes
作者:Jing Li、Alexander Preinfalk、Nuno Maulide
DOI:10.1002/anie.201900801
日期:2019.4.23
A flexible redox-neutral coupling of aldehydes and alkenes enables rapid access to stereotriads starting from a single stereocenter with perfect levels of enantio- and diastereoselectivity under mild conditions. The versatility of the method is highlighted by the installation of heteroatoms along the tether, which enables a route to structurally diverse building blocks. The formal synthesis of (+)-neopeltolide
Enantioselective Redox-Neutral Coupling of Aldehydes and Alkenes by an Iron-Catalyzed “Catch–Release” Tethering Approach
作者:Jing Li、Alexander Preinfalk、Nuno Maulide
DOI:10.1021/jacs.8b12242
日期:2019.1.9
The reductive coupling of aldehydes and alkenes is an emerging technology that holds the potential to reinvent carbonyl addition chemistry. However, existing enantioselective methods are limited to form "branched" products. Herein, we present a directed enantio- and diastereoselective alkylation of aldehydes with simple olefins to selectively yield linear coupling products. This is achieved by redox-neutral remote functionalization, whereby a tethering "catch-release" strategy decisively solves the key problems of reactivity and selectivity.