A metal-free direct α-selectivearylation of BODIPYs has been developed based on base-mediated C–Hfunctionalization with easily accessible diaryliodonium salts, which provides a straightforward facile access to a variety of α-arylBODIPY dyes. The α-regioselectivity was confirmed by X-ray analysis, and was studied by DFT calculation. The resultant dyes show strong absorption and emission over a broad
bisthiolation of terminal alkynes, K2S (potassium sulfide) and diaryliodoniumsalts for the assembly of functionalized (Z)‐1,2‐bis(arylthio)alkene derivatives has been accomplished for the first time. This unique observation features a broad substrate scope, excellent functional‐group tolerance, and high regioselectivity. Especially, an arylthiolate anion from diaryliodoniumsalts and potassium sulfide
Silyloxymethanesulfinate as a sulfoxylate equivalent for the modular synthesis of sulfones and sulfonyl derivatives
作者:Dae-Kwon Kim、Hyun-Suk Um、Hoyoon Park、Seonwoo Kim、Jin Choi、Chulbom Lee
DOI:10.1039/d0sc02947e
日期:——
protocol for the modular synthesis of sulfones and sulfonyl derivatives has been developed utilizing sodium tert-butyldimethylsilyloxymethanesulfinate (TBSOMS-Na) as a sulfoxylate (SO22−) equivalent. TBSOMS-Na, easily prepared from the commercial reagents Rongalite™ and TBSCl, serves as a potent nucleophile in S-alkylation and Cu-catalyzed S-arylation reactions with alkyl and aryl electrophiles. The sulfone
Transition-Metal-Free Arylations of In-Situ Generated Sulfenates with Diaryliodonium Salts
作者:Hao Yu、Zhen Li、Carsten Bolm
DOI:10.1021/acs.orglett.8b03046
日期:2018.11.16
A transition-metal-free arylation of sulfenate anions generated from β-sulfinyl esters with diaryliodoniumsalts was developed. In this process, a new C–S bond is formed under mild reaction conditions providing a wide range of S,S-diaryl and S-alkyl S-aryl sulfoxides.
Iridium(III)-Catalyzed Sequential C(2)-Arylation and Intramolecular C–O Bond Formation from Azulenecarboxylic Acids and Diaryliodonium Salts Access to Azulenofuranones
作者:Chanyoung Maeng、Hyung Jin Seo、Haneal Jeong、Kyungsup Lee、Hee Chan Noh、Phil Ho Lee
DOI:10.1021/acs.orglett.0c02607
日期:2020.9.18
herein is the iridium-catalyzed sequential C(2)-arylation reaction and intramolecular C–O bond formationfrom azulenecarboxylic acids and diaryliodonium salts, leading to the formation of 3-arylazulenofuranones. The sequential reaction proceeded smoothly through generation of 2-arylazulene-1-carboxylic acids derived from the iridium-catalyzed regioselective C(2)-arylation reaction without the decarboxylation