Rearrangement of organometallic compounds. 25. Carbon-skeletal [1,2]anionic rearrangements and the .pi.-orbital overlap constraint: the question of nucleophilic attack versus electron transfer
Rearrangement of organometallic compounds. 25. Carbon-skeletal [1,2]anionic rearrangements and the .pi.-orbital overlap constraint: the question of nucleophilic attack versus electron transfer
Direct Arylation of Alkenes with Aryl Iodides/Bromides through an Organocatalytic Radical Process
作者:Chang-Liang Sun、Yi-Fan Gu、Bin Wang、Zhang-Jie Shi
DOI:10.1002/chem.201101562
日期:2011.9.19
A radical addition: A KOtBu‐complex‐promoted radicalarylation of polysubstituted alkenes with aryliodides/bromides proceeds in high efficiency (see scheme). Benzofuran derivatives are also produced starting from readily available allyl 2‐iodophenyl ethers.
自由基添加:多取代烯烃与芳基碘化物/溴化物的KO t Bu络合物促进的自由基芳基化反应高效进行(参见方案)。苯并呋喃衍生物也是从容易获得的烯丙基2-碘苯基醚开始生产的。
Cascade Synthesis of Phenanthrenes under Photoirradiation
作者:Yongkang Li、Dan E. Wise、Joshua K. Mitchell、Marvin Parasram
DOI:10.1021/acs.joc.2c02202
日期:2023.1.6
We report a photoinduced phenanthrene synthesis from aryliodides and styrenes through an arylation/cyclization cascade. Compared to prior methods, this approach obviates the need for hazardous reagents and provides access to unsymmetrical phenanthrenes with good functional group tolerance. Mechanistic studies revealed that photoexcitation of aryliodides leads to homolytic C–I bond cleavage. Arylation