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
The direct substitutions of 9H-xanthen-9-ol with indoles in a room temperature ionic liquid medium BmimBF4
作者:Ling-yan Liu、Bing Wang、Hong-mei Yang、Wei-xing Chang、Jing Li
DOI:10.1016/j.tetlet.2011.08.085
日期:2011.10
simple, atom economical, highly efficient and green protocol has been developed for the SN1-type substitutions of 9H-xanthen-9-ol with indoles or other nucleophiles (such as diketone and pyrrole). This approach provides the substitution products in high or excellent yields in the BmimBF4 media at roomtemperature.
已经开发出一种简单,原子经济,高效且绿色的方案,用于用吲哚或其他亲核试剂(例如二酮和吡咯)将9 H-黄嘌呤-9-ol进行S N 1型取代。在室温下,该方法可在BmimBF 4培养基中以高收率或优异的收率提供替代产品。
1,3-Dichloro-tetra-n-butyl-distannoxane: a new application for catalyzing the direct substitution of 9H-xanthen-9-ol at room temperature
作者:Ling-yan Liu、Yan Zhang、Kai-meng Huang、Wei-xing Chang、Jing Li
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