Ene Reaction of Arylallyl Alkenes with C60. A Mechanistic Approach
摘要:
[GRAPHICS]The ene reaction of arylallyl alkenes with C-60 occurs either by a concerted mechanism or by the reversible formation of a charged or a dipolar intermediate, followed by the C-H(D) breakage in a rate-limiting step.
Site‐Selective, Remote sp
<sup>3</sup>
C−H Carboxylation Enabled by the Merger of Photoredox and Nickel Catalysis
作者:Basudev Sahoo、Peter Bellotti、Francisco Juliá‐Hernández、Qing‐Yuan Meng、Stefano Crespi、Burkhard König、Ruben Martin
DOI:10.1002/chem.201902095
日期:2019.7.5
A photoinduced carboxylation of alkyl halides with CO2 at remote sp3 C−Hsitesenabled by the merger of photoredox and Ni catalysis is described. This protocol features a predictable reactivity and siteselectivity that can be modulated by the ligand backbone. Preliminary studies reinforce a rationale based on a dynamic displacement of the catalyst throughout the alkyl side chain.