电化学合成二聚 λ-溴烷：高价态溴(III)化合物的平台。
Electrochemical Synthesis of Dimeric λ-Bromane: Platform for Hypervalent Bromine(III) Compounds.
机构信息
Latvian Institute of Organic Synthesis, Aizkraukles 21, LV-1006 Riga, Latvia.
Department of Chemistry, University of Latvia, Jelgavas 1, LV-1004 Riga, Latvia.
出版信息
Org Lett. 2023 Mar 31;25(12):2047-2052. doi: 10.1021/acs.orglett.3c00405. Epub 2023 Mar 21.
A straightforward and scalable approach to a previously unreported class of cyclic hypervalent Br(III) species capitalizes on the anodic oxidation of aryl bromide to dimeric benzbromoxole that serves as a versatile platform to access a range of structurally diverse Br(III) congeners such as acetoxy-, alkoxy-, and ethynyl-λ-bromanes as well as diaryl-λ-bromanes. The synthetic utility of dimeric λ-bromane is exemplified by photoinduced Minisci-type heteroarylation reactions and benzylic oxidation.
一种直接且可扩展的方法用于一类以前未报道的环状高价态 Br(III) 物种，该方法利用芳基溴化物的阳极氧化生成二聚苯并溴氧杂环戊烷，这是一种多功能平台，可以获得一系列结构多样的 Br(III) 同系物，如乙酰氧基、烷氧基和乙炔基-λ-溴代烷以及二芳基-λ-溴代烷。二聚体 λ-溴代烷的合成用途通过光诱导的 Minisci 型杂芳基化反应和苄基氧化得到了例证。
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