A new catalytic procedure for atom-transfer radical addition (ATRA) and cyclization (ATRC) reactions is described. The combination of the ruthenium(III) complex [RuCl(2)Cp*(PPh3)] (Cp*: pentamethylcyclopentadienyl) with magnesium allows these reactions to be performed under mild conditions with high efficiency. In most cases, the catalyst concentrations required are significantly lower than those used
Visible light-mediated polychlorination of alkenes <i>via</i> the dichloromethyl radical generated by chloroform and chlorides
作者:Chunying Wu、Xin Hui、Dan Zhang、Minghui Zhang、Yunbo Zhu、Sicen Wang
DOI:10.1039/d1gc04109f
日期:——
We report a novel visiblelight-mediated protocol for polychlorination of alkenes by employing commercially available bulk chemicals, chloroform and chlorides. This methodology enables the installation of multiple chlorine atoms into alkene feedstocks in a single step and provides the corresponding chloroalkanes in high yields under mild reaction conditions. Additionally, this transformation tolerates
Atom‐Transfer Radical Reactions under Mild Conditions with [{RuCl
<sub>2</sub>
(1,3,5‐C
<sub>6</sub>
H
<sub>3</sub>
<i>i</i>
Pr
<sub>3</sub>
)}
<sub>2</sub>
] and PCy
<sub>3</sub>
as the Catalyst Precursors
作者:Laurent Quebatte、Michel Haas、Euro Solari、Rosario Scopelliti、Quoc T. Nguyen、Kay Severin