CuCl
2
‐Catalyzed
α
‐Chloroketonation of Aromatic Alkenes via Visible‐Light‐Induced LMCT
摘要:
AbstractHere we report a copper‐catalyzed protocol for the synthesis of α‐chloroketones from aromatic alkenes including electron‐deficient olefins under visible‐light irradiation. Preliminary mechanistic studies show that the peroxo Cu(II) species is the key intermediate and hydroperoxyl (HOO⋅) and chlorine (Cl⋅) radicals can be generated by ligand‐to‐metal charge transfer (LMCT).
Structure-Reactivity Correlations in Nucleophilic Displacement Reactions of Y-Substituted-Phenyl X-Substituted-Cinnamates with Z-Substituted-Phenoxides
作者:Yu-Jin Son、Eun-Hee Kim、Ji-Sun Kang、Ik-Hwan Um
DOI:10.5012/bkcs.2013.34.8.2455
日期:2013.8.20
linear correlation with ρX = 0.89 and r = 0.58. The Bronsted-type plot for the reactions of 4-nitrophenyl cinnamate (4c) with Z-substituted-phenoxides is linear with βnuc = 0.76. The Bronsted-type plot for the reactions of Y-substituted-phenyl cinnamates (5a-5d) with 4-chlorophenoxides (4ClPhO – ) is also linear with βlg = –0.72. The Hammett plot correlated with σ – constants for the reactions of 5a5d
CuCl
<sub>2</sub>
‐Catalyzed
<i>α</i>
‐Chloroketonation of Aromatic Alkenes via Visible‐Light‐Induced LMCT
作者:Xing‐Xian He、Huan‐Huan Chang、Ying‐Xue Zhao、Xiang‐Jie Li、Sheng‐An Liu、Zhong‐Lin Zang、Cheng‐He Zhou、Gui‐Xin Cai
DOI:10.1002/asia.202200954
日期:2023.1.3
AbstractHere we report a copper‐catalyzed protocol for the synthesis of α‐chloroketones from aromatic alkenes including electron‐deficient olefins under visible‐light irradiation. Preliminary mechanistic studies show that the peroxo Cu(II) species is the key intermediate and hydroperoxyl (HOO⋅) and chlorine (Cl⋅) radicals can be generated by ligand‐to‐metal charge transfer (LMCT).