Triethylaluminum- or Triethylborane-Induced Free Radical Reaction of Alkyl Iodides and α,β-Unsaturated Compounds
作者:Jing-Yuan Liu、Yoeng-Jiunn Jang、Wen-Wei Lin、Ju-Tsung Liu、Ching-Fa Yao
DOI:10.1021/jo020681b
日期:2003.5.1
beta-unsaturated compounds, 1a-c, 9, 13, and 17, were used as reactants in free radical conjugate addition reactions with different radicals generated from alkyliodides such as 3, 4, or 5 in the presence of triethylborane-oxygen in air or via the use of triethylaluminum-benzoyl peroxide as a free radical initiator. When the reactions were carried out using triethylborane-air, the products, in most cases,
Uranyl nitrate hexahydrate performs as an efficient photocatalyst in the direct C–H to C–C bond conversion under blue light irradiation via hydrogen atom transfer (HAT). This uranyl salt enables the remarkable smooth functionalization of unactivated (cyclo)alkanes, ethers, acetals, and amides via radical addition onto electrophilic olefins. Dedicated electrochemical measurements on compounds and intermediates