Visible light-induced highly selective transformation of olefin to ketone by 2,4,6-triphenylpyrylium cation encapsulated within zeolite Y
作者:Yasuhiro Shiraishi、Naoya Saito、Takayuki Hirai
DOI:10.1039/b515137f
日期:——
2,4,6-Triphenylpyrylium cation encapsulated withinzeolite Y promotes highly selective transformation of olefins to ketones with molecular oxygen, under visible light (lambda > 400 nm) irradiation at room temperature.
Photoredox-Catalyzed Dimerization of Arylalkenes<i>via</i>an Oxidative [4+2] Cycloaddition Sequence: Synthesis of Naphthalene Derivatives
作者:Donglei Wei、Yanru Li、Fushun Liang
DOI:10.1002/adsc.201600587
日期:2016.12.7
We report a radical cation [4+2] annulation of arylalkenes to afford naphthalene derivatives using an organic photosensitizer (9‐mesityl‐10‐methylacridinium perchlorate) under visible light photocatalysis. In the presence of oxygen (in the air), the oxidative dimerization/intramolecular [4+2] cycloaddition of two alkene molecules provides 3,4‐dihydronaphthalen‐1(2H)‐ones in good to high yields. Under