Palladium‐Catalyzed
<i>peri</i>
‐Selective C−H Fluoroalkoxylation of Aryl Sulfoxides
作者:Tomohiko Sato、Keisuke Nogi、Hideki Yorimitsu
DOI:10.1002/cctc.202000485
日期:2020.7.6
Sulfinyl‐directed peri‐selective C−H fluoroalkoxylation of arylsulfoxides with fluorinated alcohols has been developed. By means of a palladium catalyst and PhI(OAc)2 as an oxidant, a range of fluoroalkoxy groups can be installed onto the peri position of arylsulfoxides. The remaining sulfinyl groups on the fluoroalkoxylation products further promote Pummerer‐based C−H functionalizations.
Nickel-catalyzed Negishi-type cross-coupling of aryl methyl sulfoxides with arylzinc reagents has been developed. By consuming the catalyst-oxidizing methanesulfenate anion through oxidative homocoupling of the arylzinc reagent, smooth catalyst turnover could be executed. Arylzinc reagents prepared from arylmagnesium bromide, zinc bromide, and lithium bromide were optimal to afford the products in
cross-coupling strategy for the preparation of novel sulfoximines via preformed sulfoximidoyl-containing buildingblocks has been developed. It allows obtaining a wide range of products in good yields under mild reaction conditions, and it can be applied in late-stage functionalizations, as demonstrated by the synthesis of a sulfoximine-based analogue of a recently reported potent valosine-containing protein inhibitor
COMPOUND FOR ORGANIC ELECTRONIC ELEMENT, ORGANIC ELECTRONIC ELEMENT COMPRISING THE SAME, AND ELECTRONIC DEVICE THEREOF
申请人:DUK SAN NEOLUX CO., LTD.
公开号:US20170288148A1
公开(公告)日:2017-10-05
Provided are a compound of Formula 1 and an organic electric element comprising a first electrode, a second electrode, and an organic material layer formed between the first electrode and the second electrode, and electronic device comprising the organic electric element, wherein the driving voltage of the organic electronic device can be lowered, and the luminous efficiency and life span can be improved by comprising the compound represented by Formula 1 in the organic material layer.
C−H iodination of aromatic compounds has been accomplished with the aid of sulfinyl directing groups under palladium catalysis. The reaction proceeds selectively at the peri‐position of polycyclic aryl sulfoxides or at the ortho‐position of phenyl sulfoxides. The iodination products can be further converted via iterative catalytic cross‐coupling at the expense of the C−I and C−S bonds. Computational