Iodine-catalyzed efficient synthesis of xanthene/thioxanthene-indole derivatives under mild conditions
作者:Weihang Miao、Pingting Ye、Mengjiao Bai、Zhixin Yang、Suyue Duan、Hengpan Duan、Xuequan Wang
DOI:10.1039/d0ra05217e
日期:——
xanthen-9-ol and thioxanthen-9-ol with indoles has been developed, providing an efficient procedure for the synthesis of xanthene/thioxanthene-indole derivatives with good to excellent yields. This protocol offers several advantages, such as short reaction times, green solvent, operational simplicity, easily available catalyst and mild reaction conditions. Moreover, this method showed good tolerance of functional
Semiconductor Quantum Dots Act as Photocatalysts for Carbon–Carbon Bond Formation: Selective Functionalization of Xanthene’s 9H Position
作者:Jiteshkumar P. Deore、Mrinmoy De
DOI:10.1021/acs.joc.3c01801
日期:2023.12.1
The potential of CdSe, CdS, MoS2, and WS2 QDs as semiconductor photocatalysts for selectivefunctionalization of the xanthene 9H position through carbon–carbon bond formation has been investigated. Our study reveals valuable insights into the energy-transfer and electron-transfer pathways involved in these reactions, as well as the radical polar crossover (RPC) and triplet-to-triplet energy transfer
The invention relates to an image support medium for creation of an aesthetic image that is an work or object for display. This support medium includes a polymer in an amount sufficient to enable the image to have at least one aesthetic element. In different embodiments, the image support medium is an image support stabilizer, the polymer is a synthetic absorbent or conductive polymer, or the polymer is a transparent or synthetic translucent polymer and a property of this transparent or translucent polymer is enhanced to facilitate the creation or preservation of the image by at least one stabilizer. The invention also relates to a method for preparing this image support medium. The method includes forming a reaction mixture comprising a monomer in an amount sufficient to provide or enable the image to have an aesthetic element, and processing the reaction mixture into a 2- or 3-dimensional shape.