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Synthesis of 2,5-Diaryl-1,5-dienes from Allylic Bromides Using Visible-Light Photoredox Catalysis
The Journal of Organic Chemistry ( IF 3.3 ) Pub Date : 2015-10-30 00:00:00 , DOI: 10.1021/acs.joc.5b01962
Gerald Pratsch 1 , Larry E Overman 1
Affiliation  

Visible-light photoreductive coupling of 2-arylallyl bromides in the presence of the photocatalyst Ru(bpy)3(PF6)2, a Hantzsch ester, and i-Pr2NEt gives 2,5-diaryl-1,5-dienes in high yield. This method avoids the use of stoichiometric metal reductants and is compatible with the presence of halogen, alkyl, electron-donating, and electron-withdrawing substituents on the aromatic ring.

中文翻译:

利用可见光光氧化还原催化从烯丙基溴合成 2,5-二芳基-1,5-二烯

在光催化剂 Ru(bpy) 3 (PF 6 ) 2(一种 Hantzsch 酯)和i -Pr 2 NEt 存在下,2-芳基烯丙基溴的可见光光还原偶联得到 2,5-二芳基-1,5-二烯高产。该方法避免了使用化学计量的金属还原剂,并且与芳环上卤素、烷基、给电子和吸电子取代基的存在相容。
更新日期:2015-10-30
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