Direct β-Selective Hydrocarboxylation of Styrenes with CO<sub>2</sub> Enabled by Continuous Flow Photoredox Catalysis
作者:Hyowon Seo、Aofei Liu、Timothy F. Jamison
DOI:10.1021/jacs.7b05942
日期:2017.10.11
The direct β-selective hydrocarboxylation of styrenes under atmospheric pressure of CO2 has been developed using photoredoxcatalysis in continuous flow. The scope of this methodology was demonstrated with a range of functionalized terminal styrenes, as well as α-substituted and β-substituted styrenes.
已经在连续流动中使用光氧化还原催化开发了在 CO2 大气压下苯乙烯的直接 β-选择性加氢羧化反应。该方法的范围通过一系列官能化的末端苯乙烯以及 α-取代和 β-取代的苯乙烯进行了证明。
Photoinduced Hydrocarboxylation via Thiol-Catalyzed Delivery of Formate Across Activated Alkenes
作者:Sara N. Alektiar、Zachary K. Wickens
DOI:10.1021/jacs.1c07562
日期:2021.8.25
Herein we disclose a new photochemical process to prepare carboxylic acids from formate salts and alkenes. This redox-neutral hydrocarboxylation proceeds in highyields across diverse functionalized alkene substrates with excellent regioselectivity. This operationally simple procedure can be readily scaled in batch at low photocatalyst loading (0.01% photocatalyst). Furthermore, this new reaction can
Harnessing Applied Potential: Selective β-Hydrocarboxylation of Substituted Olefins
作者:Anas Alkayal、Volodymyr Tabas、Stephanie Montanaro、Iain A. Wright、Andrei V. Malkov、Benjamin R. Buckley
DOI:10.1021/jacs.9b13305
日期:2020.1.29
The construction of carboxylic acid compounds in a selective fashion from low value materials such as alkenes remains a long-standing challenge to synthetic chemists. In particular, β-addition to styrenes is underdeveloped. Herein we report a new electrosynthetic approach to the selective hydrocarboxylation of alkenes that overcomes the limitations of current transition metal and photochemical approaches